Exhibit

EX-99 2 exhibit.htm EXHIBIT 99.1 Exhibit

GSR05-2F-1 - Dec - 1P1


Date	1	2	3	4	200 Pricing
28-Jan-05	100	100	100	100	100
25-Jan-06	96	80	80	80	72
25-Jan-07	92	60	60	51	32
25-Jan-08	88	42	42	26	11
25-Jan-09	84	27	27	13	2
25-Jan-10	79	15	15	5	0
25-Jan-11	74	7	7	2	0
25-Jan-12	69	1	2	*	0
25-Jan-13	63	0	0	0	0
25-Jan-14	57	0	0	0	0
25-Jan-15	50	0	0	0	0
25-Jan-16	43	0	0	0	0
25-Jan-17	35	0	0	0	0
25-Jan-18	26	0	0	0	0
25-Jan-19	17	0	0	0	0
25-Jan-20	7	0	0	0	0
25-Jan-21	0	0	0	0	0

WAL	9.32	2.85	2.86	2.31	1.69
Principal Window	Feb05-Sep20	Feb05-May12	Feb05-Jun12	Feb05-Oct12	Feb05-Aug09

Prepay	0 PSA	250 PSA	500 PSA	750 PSA	1000 PSA


Disclaimer:

GSR05-2F-1 - Dec - 1P2


Date	1	2	3	4	200 Pricing
28-Jan-05	100	100	100	100	100
25-Jan-06	96	80	80	80	72
25-Jan-07	92	60	60	51	32
25-Jan-08	88	42	42	26	11
25-Jan-09	84	27	27	13	2
25-Jan-10	79	15	15	5	0
25-Jan-11	74	7	7	2	0
25-Jan-12	69	1	2	*	0
25-Jan-13	63	0	0	0	0
25-Jan-14	57	0	0	0	0
25-Jan-15	50	0	0	0	0
25-Jan-16	43	0	0	0	0
25-Jan-17	35	0	0	0	0
25-Jan-18	26	0	0	0	0
25-Jan-19	17	0	0	0	0
25-Jan-20	7	0	0	0	0
25-Jan-21	0	0	0	0	0

WAL	9.32	2.85	2.86	2.31	1.69
Principal Window	Feb05-Sep20	Feb05-May12	Feb05-Jun12	Feb05-Oct12	Feb05-Aug09

Prepay	0 PSA	250 PSA	500 PSA	750 PSA	1000 PSA


Disclaimer:

GSR05-2F-1 - Dec - 1P3


Date	1	2	3	4	200 Pricing
28-Jan-05	100	100	100	100	100
25-Jan-06	96	80	80	80	72
25-Jan-07	92	60	60	51	32
25-Jan-08	88	42	42	26	11
25-Jan-09	84	27	27	13	2
25-Jan-10	79	15	15	5	0
25-Jan-11	74	7	7	2	0
25-Jan-12	69	1	2	*	0
25-Jan-13	63	0	0	0	0
25-Jan-14	57	0	0	0	0
25-Jan-15	50	0	0	0	0
25-Jan-16	43	0	0	0	0
25-Jan-17	35	0	0	0	0
25-Jan-18	26	0	0	0	0
25-Jan-19	17	0	0	0	0
25-Jan-20	7	0	0	0	0
25-Jan-21	0	0	0	0	0

WAL	9.32	2.85	2.86	2.31	1.69
Principal Window	Feb05-Sep20	Feb05-May12	Feb05-Jun12	Feb05-Oct12	Feb05-Aug09

Prepay	0 PSA	250 PSA	500 PSA	750 PSA	1000 PSA


Disclaimer:

GSR05-2F-1 - Dec - 1PK


Date	1	2	3	4	200 Pricing
28-Jan-05	100	100	100	100	100
25-Jan-06	96	80	80	80	72
25-Jan-07	92	60	60	51	32
25-Jan-08	88	42	42	26	11
25-Jan-09	84	27	27	13	2
25-Jan-10	79	15	15	5	0
25-Jan-11	74	7	7	2	0
25-Jan-12	69	1	2	*	0
25-Jan-13	63	0	0	0	0
25-Jan-14	57	0	0	0	0
25-Jan-15	50	0	0	0	0
25-Jan-16	43	0	0	0	0
25-Jan-17	35	0	0	0	0
25-Jan-18	26	0	0	0	0
25-Jan-19	17	0	0	0	0
25-Jan-20	7	0	0	0	0
25-Jan-21	0	0	0	0	0

WAL	9.32	2.85	2.86	2.31	1.69
Principal Window

Prepay	0 PSA	250 PSA	500 PSA	750 PSA	1000 PSA


Disclaimer:

GSR05-2F-1 - Dec - 1Z


Date	1	2	3	4	200 Pricing
28-Jan-05	100	100	100	100	100
25-Jan-06	106	106	64	21	0
25-Jan-07	113	112	37	0	0
25-Jan-08	120	116	22	0	0
25-Jan-09	127	118	18	0	0
25-Jan-10	135	118	19	0	0
25-Jan-11	143	113	20	0	0
25-Jan-12	152	106	22	0	0
25-Jan-13	161	91	17	0	0
25-Jan-14	171	76	12	0	0
25-Jan-15	182	63	8	0	0
25-Jan-16	193	52	5	0	0
25-Jan-17	205	43	4	0	0
25-Jan-18	218	35	2	0	0
25-Jan-19	231	29	2	0	0
25-Jan-20	245	23	1	0	0
25-Jan-21	251	19	1	0	0
25-Jan-22	237	15	*	0	0
25-Jan-23	222	12	*	0	0
25-Jan-24	206	10	*	0	0
25-Jan-25	190	7	*	0	0
25-Jan-26	172	6	*	0	0
25-Jan-27	153	4	*	0	0
25-Jan-28	132	3	*	0	0
25-Jan-29	110	2	*	0	0
25-Jan-30	87	2	*	0	0
25-Jan-31	62	1	*	0	0
25-Jan-32	36	*	*	0	0
25-Jan-33	16	*	*	0	0
25-Jan-34	7	*	*	0	0
25-Jan-35	0	0	0	0	0

WAL	22.91	11.56	3.16	0.66	0.4
Principal Window	Oct20-Dec34	Jul09-Dec34	Feb05~Dec34	Feb05-Jun06	Feb05-Nov05

Prepay	0 PSA	250 PSA	500 PSA	750 PSA	1000 PSA


Disclaimer:

GSR05-2F-1 - Dec - 1SUB


Date	1	2	3	4	200 Pricing
28-Jan-05	100	100	100	100	100
25-Jan-06	99	99	99	99	99
25-Jan-07	98	98	98	98	98
25-Jan-08	97	97	97	97	97
25-Jan-09	96	96	96	96	96
25-Jan-10	94	94	95	95	63
25-Jan-11	93	89	84	79	25
25-Jan-12	91	82	72	61	10
25-Jan-13	90	73	57	40	4
25-Jan-14	88	63	42	22	2
25-Jan-15	86	52	29	12	1
25-Jan-16	84	43	20	6	*
25-Jan-17	81	36	13	3	*
25-Jan-18	78	29	9	2	*
25-Jan-19	75	24	6	1	*
25-Jan-20	72	19	4	*	*
25-Jan-21	68	16	3	*	*
25-Jan-22	64	13	2	*	*
25-Jan-23	60	10	1	*	*
25-Jan-24	56	8	1	*	*
25-Jan-25	52	6	*	*	*
25-Jan-26	47	5	*	*	*
25-Jan-27	41	4	*	*	*
25-Jan-28	36	3	*	*	*
25-Jan-29	30	2	*	*	*
25-Jan-30	24	1	*	*	*
25-Jan-31	17	1	*	*	0
25-Jan-32	10	*	*	*	0
25-Jan-33	4	*	*	*	0
25-Jan-34	2	*	*	*	0
25-Jan-35	0	0	0	0	0

WAL	18.85	11.14	8.8	7.63	5.52
Principal Window	Feb05-Dec34	Feb05-Dec34	Feb05-Dec34	Feb05-Dec34	Feb05-Sep30

Prepay	0 PSA	250 PSA	500 PSA	750 PSA	1000 PSA


Disclaimer:

GSR05-2F-1 - Dec - #NETRATE


Date	1	2	3	4	200 Pricing
28-Jan-05	0	0	0	0	0
25-Jan-06	0	0	0	0	0
25-Jan-07	0	0	0	0	0
25-Jan-08	0	0	0	0	0
25-Jan-09	0	0	0	0	0
25-Jan-10	0	0	0	0	0
25-Jan-11	0	0	0	0	0
25-Jan-12	0	0	0	0	0
25-Jan-13	0	0	0	0	0
25-Jan-14	0	0	0	0	0
25-Jan-15	0	0	0	0	0
25-Jan-16	0	0	0	0	0
25-Jan-17	0	0	0	0	0
25-Jan-18	0	0	0	0	0
25-Jan-19	0	0	0	0	0
25-Jan-20	0	0	0	0	0
25-Jan-21	0	0	0	0	0
25-Jan-22	0	0	0	0	0
25-Jan-23	0	0	0	0	0
25-Jan-24	0	0	0	0	0
25-Jan-25	0	0	0	0	0
25-Jan-26	0	0	0	0	0
25-Jan-27	0	0	0	0	0
25-Jan-28	0	0	0	0	0
25-Jan-29	0	0	0	0	0
25-Jan-30	0	0	0	0	0
25-Jan-31	0	0	0	0	0
25-Jan-32	0	0	0	0	0
25-Jan-33	0	0	0	0	0
25-Jan-34	0	0	0	0	0
25-Jan-35	0	0	0	0	0

WAL	NA	NA	NA	NA	NA
Principal Window

Prepay	0 PSA	250 PSA	500 PSA	750 PSA	1000 PSA


Disclaimer:

GSR05-2F-1 - Dec - #1Z_ACC


Date	1	2	3	4	200 Pricing
28-Jan-05	0	0	0	0	0
25-Jan-06	0	0	0	0	0
25-Jan-07	0	0	0	0	0
25-Jan-08	0	0	0	0	0
25-Jan-09	0	0	0	0	0
25-Jan-10	0	0	0	0	0
25-Jan-11	0	0	0	0	0
25-Jan-12	0	0	0	0	0
25-Jan-13	0	0	0	0	0
25-Jan-14	0	0	0	0	0
25-Jan-15	0	0	0	0	0
25-Jan-16	0	0	0	0	0
25-Jan-17	0	0	0	0	0
25-Jan-18	0	0	0	0	0
25-Jan-19	0	0	0	0	0
25-Jan-20	0	0	0	0	0
25-Jan-21	0	0	0	0	0
25-Jan-22	0	0	0	0	0
25-Jan-23	0	0	0	0	0
25-Jan-24	0	0	0	0	0
25-Jan-25	0	0	0	0	0
25-Jan-26	0	0	0	0	0
25-Jan-27	0	0	0	0	0
25-Jan-28	0	0	0	0	0
25-Jan-29	0	0	0	0	0
25-Jan-30	0	0	0	0	0
25-Jan-31	0	0	0	0	0
25-Jan-32	0	0	0	0	0
25-Jan-33	0	0	0	0	0
25-Jan-34	0	0	0	0	0
25-Jan-35	0	0	0	0	0

WAL	NA	NA	NA	NA	NA
Principal Window

Prepay	0 PSA	250 PSA	500 PSA	750 PSA	1000 PSA


Disclaimer:

GSR05-2F-1 - Dec - DEAL_PLUGIN


Date	1		2	3	4	200 Pricing
28-Jan-05	100		100	100	100	100
25-Jan-06	99		88	76	65	54
25-Jan-07	98		75	55	39	25
25-Jan-08	97		63	38	21	10
25-Jan-09	96		53	26	11	4
25-Jan-10	94		44	18	6	2
25-Jan-11	93		37	13	3	1
25-Jan-12	91		31	9	2	*
25-Jan-13	90		26	6	1	*
25-Jan-14	88		22	4	1	*
25-Jan-15	86		18	3	*	*
25-Jan-16	84		15	2	*	*
25-Jan-17	81		12	1	*	*
25-Jan-18	78		10	1	*	*
25-Jan-19	75		8	1	*	*
25-Jan-20	72		7	*	*	*
25-Jan-21	68		5	*	*	*
25-Jan-22	64		4	*	*	*
25-Jan-23	60		3	*	*	*
25-Jan-24	56		3	*	*	*
25-Jan-25	52		2	*	*	*
25-Jan-26	47		2	*	*	*
25-Jan-27	41		1	*	*	*
25-Jan-28	36		1	*	*	*
25-Jan-29	30		1	*	*	*
25-Jan-30	24		*	*	*	*
25-Jan-31	17		*	*	*	0
25-Jan-32	10		*	*	*	0
25-Jan-33	4		*	*	*	0
25-Jan-34	2		*	*	*	0
25-Jan-35	0		0	0	0	0

WAL	18.85		5.85	3.06	2	1.45
Principal Window	Feb05-Dec34		Feb05-Dec34	Feb05-Dec34	Feb05-Dec34	Feb05-Sep30

Prepay	0 PSA		250 PSA	500 PSA	750 PSA	1000 PSA


Disclaimer:


GSR05-2F-1 - Dec - #RESIDCASH


Date	1	2	3	4	200 Pricing
28-Jan-05	0	0	0	0	0
25-Jan-06	0	0	0	0	0
25-Jan-07	0	0	0	0	0
25-Jan-08	0	0	0	0	0
25-Jan-09	0	0	0	0	0
25-Jan-10	0	0	0	0	0
25-Jan-11	0	0	0	0	0
25-Jan-12	0	0	0	0	0
25-Jan-13	0	0	0	0	0
25-Jan-14	0	0	0	0	0
25-Jan-15	0	0	0	0	0
25-Jan-16	0	0	0	0	0
25-Jan-17	0	0	0	0	0
25-Jan-18	0	0	0	0	0
25-Jan-19	0	0	0	0	0
25-Jan-20	0	0	0	0	0
25-Jan-21	0	0	0	0	0
25-Jan-22	0	0	0	0	0
25-Jan-23	0	0	0	0	0
25-Jan-24	0	0	0	0	0
25-Jan-25	0	0	0	0	0
25-Jan-26	0	0	0	0	0
25-Jan-27	0	0	0	0	0
25-Jan-28	0	0	0	0	0
25-Jan-29	0	0	0	0	0
25-Jan-30	0	0	0	0	0
25-Jan-31	0	0	0	0	0
25-Jan-32	0	0	0	0	0
25-Jan-33	0	0	0	0	0
25-Jan-34	0	0	0	0	0
25-Jan-35	0	0	0	0	0

WAL	NA	NA	NA	NA	NA
Principal Window

Prepay	0 PSA	250 PSA	500 PSA	750 PSA	1000 PSA


Disclaimer:

GSR05-2F-1 - Dec - Class-1PP


Date	1	2	3	4	200 Pricing
28-Jan-05	100	100	100	100	100
25-Jan-06	96	80	80	80	72
25-Jan-07	92	60	60	51	32
25-Jan-08	88	42	42	26	11
25-Jan-09	84	27	27	13	2
25-Jan-10	79	15	15	5	0
25-Jan-11	74	7	7	2	0
25-Jan-12	69	1	2	*	0
25-Jan-13	63	0	0	0	0
25-Jan-14	57	0	0	0	0
25-Jan-15	50	0	0	0	0
25-Jan-16	43	0	0	0	0
25-Jan-17	35	0	0	0	0
25-Jan-18	26	0	0	0	0
25-Jan-19	17	0	0	0	0
25-Jan-20	7	0	0	0	0
25-Jan-21	0	0	0	0	0

WAL	9.32	2.85	2.86	2.31	1.69
Principal Window	Feb05-Sep20	Feb05-May12	Feb05-Jun12	Feb05-Oct12	Feb05-Aug09

Prepay	0 PSA	250 PSA	500 PSA	750 PSA	1000 PSA


Disclaimer:

GSR05-2F-1 - Dec - Class-1P


Date	1	2	3	4	200 Pricing
28-Jan-05	100	100	100	100	100
25-Jan-06	96	80	80	80	72
25-Jan-07	92	60	60	51	32
25-Jan-08	88	42	42	26	11
25-Jan-09	84	27	27	13	2
25-Jan-10	79	15	15	5	0
25-Jan-11	74	7	7	2	0
25-Jan-12	69	1	2	*	0
25-Jan-13	63	0	0	0	0
25-Jan-14	57	0	0	0	0
25-Jan-15	50	0	0	0	0
25-Jan-16	43	0	0	0	0
25-Jan-17	35	0	0	0	0
25-Jan-18	26	0	0	0	0
25-Jan-19	17	0	0	0	0
25-Jan-20	7	0	0	0	0
25-Jan-21	0	0	0	0	0

WAL	9.32	2.85	2.86	2.31	1.69
Principal Window	Feb05-Sep20	Feb05-May12	Feb05-Jun12	Feb05-Oct12	Feb05-Aug09

Prepay	0 PSA	250 PSA	500 PSA	750 PSA	1000 PSA


Disclaimer:

GSR05-2F-1 - Dec - Class-SNR


Date	1	2	3	4	200 Pricing
28-Jan-05	100	100	100	100	100
25-Jan-06	99	87	76	64	53
25-Jan-07	98	74	54	37	23
25-Jan-08	97	62	37	19	8
25-Jan-09	96	52	25	9	2
25-Jan-10	94	43	16	4	0
25-Jan-11	93	36	11	1	0
25-Jan-12	91	30	7	*	0
25-Jan-13	90	25	5	0	0
25-Jan-14	88	21	3	0	0
25-Jan-15	86	17	2	0	0
25-Jan-16	84	14	1	0	0
25-Jan-17	81	12	1	0	0
25-Jan-18	78	10	1	0	0
25-Jan-19	75	8	*	0	0
25-Jan-20	72	6	*	0	0
25-Jan-21	68	5	*	0	0
25-Jan-22	64	4	*	0	0
25-Jan-23	60	3	*	0	0
25-Jan-24	56	3	*	0	0
25-Jan-25	52	2	*	0	0
25-Jan-26	47	2	*	0	0
25-Jan-27	41	1	*	0	0
25-Jan-28	36	1	*	0	0
25-Jan-29	30	1	*	0	0
25-Jan-30	24	*	*	0	0
25-Jan-31	17	*	*	0	0
25-Jan-32	10	*	*	0	0
25-Jan-33	4	*	*	0	0
25-Jan-34	2	*	*	0	0
25-Jan-35	0	0	0	0	0

WAL	18.85	5.71	2.92	1.86	1.34
Principal Window	Feb05-Dec34	Feb05-Dec34	Feb05-Dec34	Feb05-Oct12	Feb05-Aug09

Prepay	0 PSA	250 PSA	500 PSA	750 PSA	1000 PSA


Disclaimer:

GSR05-2F-1 - Dec - COLLAT


Date	1	2	3	4	200 Pricing
28-Jan-05	100	100	100	100	100
25-Jan-06	99	88	76	65	54
25-Jan-07	98	75	55	39	25
25-Jan-08	97	63	38	21	10
25-Jan-09	96	53	26	11	4
25-Jan-10	94	44	18	6	2
25-Jan-11	93	37	13	3	1
25-Jan-12	91	31	9	2	*
25-Jan-13	90	26	6	1	*
25-Jan-14	88	22	4	1	*
25-Jan-15	86	18	3	*	*
25-Jan-16	84	15	2	*	*
25-Jan-17	81	12	1	*	*
25-Jan-18	78	10	1	*	*
25-Jan-19	75	8	1	*	*
25-Jan-20	72	7	*	*	*
25-Jan-21	68	5	*	*	*
25-Jan-22	64	4	*	*	*
25-Jan-23	60	3	*	*	*
25-Jan-24	56	3	*	*	*
25-Jan-25	52	2	*	*	*
25-Jan-26	47	2	*	*	*
25-Jan-27	41	1	*	*	*
25-Jan-28	36	1	*	*	*
25-Jan-29	30	1	*	*	*
25-Jan-30	24	*	*	*	*
25-Jan-31	17	*	*	*	0
25-Jan-32	10	*	*	*	0
25-Jan-33	4	*	*	*	0
25-Jan-34	2	*	*	*	0
25-Jan-35	0	0	0	0	0

WAL	18.85	5.85	3.06	2	1.45
Principal Window	Feb05-Dec34	Feb05-Dec34	Feb05-Dec34	Feb05-Dec34	Feb05-May32

Prepay	0 PSA	250 PSA	500 PSA	750 PSA	1000 PSA


Disclaimer:

GSR05-2F-1 - Stack Price/Yield

Settle	1/28/2005
First Payment	2/25/2005

	1	2	3	4	200 Pricing
COLLAT
Price	100	100	100	100	100
Yield	6.03727	5.98341	5.91959	5.84937	5.77118
WAL	18.85	5.85	3.06	2.00	1.45
Mod Durn	10.45	4.34	2.56	1.77	1.31
Mod Convexity	1.705	0.366	0.132	0.064	0.036
Principal Window	Feb05 - Dec34	Feb05 - Dec34	Feb05 - Dec34	Feb05 - Dec34	Feb05 - May32
1P1
Price	100	100	100	100	100
Yield	3.99737	3.93068	3.93085	3.90828	3.86617
WAL	9.32	2.85	2.86	2.31	1.69
Mod Durn	7.38	2.59	2.60	2.13	1.59
Mod Convexity	0.779	0.111	0.112	0.075	0.042
Principal Window	Feb05 - Sep20	Feb05 - May12	Feb05 - Jun12	Feb05 - Oct12	Feb05 - Aug09
1P2
Price	100	100	100	100	100
Yield	4.24891	4.17794	4.17812	4.15414	4.10937
WAL	9.32	2.85	2.86	2.31	1.69
Mod Durn	7.28	2.58	2.58	2.12	1.59
Mod Convexity	0.763	0.110	0.111	0.074	0.042
Principal Window	Feb05 - Sep20	Feb05 - May12	Feb05 - Jun12	Feb05 - Oct12	Feb05 - Aug09
1P3
Price	100	100	100	100	100
Yield	4.50065	4.42538	4.42558	4.40018	4.35276
WAL	9.32	2.85	2.86	2.31	1.69
Mod Durn	7.18	2.56	2.57	2.11	1.58
Mod Convexity	0.747	0.109	0.110	0.074	0.041
Principal Window	Feb05 - Sep20	Feb05 - May12	Feb05 - Jun12	Feb05 - Oct12	Feb05 - Aug09
1PK
Price	10	10	10	10	10
Yield	59.55342	30.09976	30.12779	19.83922	-1.98470
WAL	9.32	2.85	2.86	2.31	1.69
Mod Durn	1.36	1.31	1.32	1.25	1.19
Mod Convexity	0.041	0.035	0.035	0.032	0.028
Principal Window	NA - NA	NA - NA	NA - NA	NA - NA	NA - NA
1Z
Price	100	100	100	100	100
Yield	6.05618	6.03115	5.91024	5.43555	5.02838
WAL	22.91	11.56	3.16	0.66	0.40
Mod Durn	20.65	9.00	2.42	0.63	0.38
Mod Convexity	4.492	1.019	0.164	0.008	0.004
Principal Window	Oct20 - Dec34	Jul09 - Dec34	Feb05 - Dec34	Feb05 - Jun06	Feb05 - Nov05
1SUB
Price	100	100	100	100	100
Yield	6.03727	6.02273	6.01399	6.00746	5.98758
WAL	18.85	11.14	8.80	7.63	5.52
Mod Durn	10.45	7.57	6.49	5.87	4.54
Mod Convexity	1.705	0.835	0.576	0.453	0.261
Principal Window	Feb05 - Dec34	Feb05 - Dec34	Feb05 - Dec34	Feb05 - Dec34	Feb05 - Sep30
Prepay	0 PSA	250 PSA	500 PSA	750 PSA	1000 PSA


Disclaimer:

Deal Summary Report

gstrack3up

Assumptions

Collateral

Settlement

31-Jan-05

Prepay

500 PSA

Balance

WAC

WAM

Age

WAL

Dur

1st Pay Date

25-Feb-05

Default

0 CDR

$205,894,092.56

6.532

335

3.05

Recovery

months

Severity

Tranche

Balance

Coupon

Principal

Avg

Dur

Yield

Spread

Bench

Price

$@1bp

Accrued

NetNet

Dated

Notes

Name

Window

Life

Int(M)

(MM)

Date

3A1

143,000,000.00

4.25

02/05 - 07/12

2.88

1-Jan-05

FIX

3A2

41,708,333.33

02/05 - 07/12

2.88

1-Jan-05

3A3

56,717,000.00

02/05 - 10/34

2.95

1-Jan-05

FIX

3SUB

6,177,092.56

02/05 - 10/34

8.79

1-Jan-05

FIX

Yield Curve

Mat 6MO 2YR 3YR 5YR 10YR 30YR

Yld 2.67500 3.24200 3.38900 3.71500 4.19500 4.68700

Swaps

3MO 6MO 1YR 2YR 3YR 5YR 6YR 7YR 8YR 9YR 10YR 11YR 12YR 13YR 14YR 15YR 20YR 25YR

2.4600 2.6525 2.9487 3.2675 3.4968 3.8831 4.0455 4.1883 4.3135 4.4236 4.5217 4.6100 4.6905 4.7627 4.8273 4.8833 5.0586 5.1249

edsf

0.5YR 1.25YR

1.182 1.480

Payrules:

Pay 3A3 accruals to 3A1 to schedule, then to 3A3

Pay 3A1 to schedule

Pay 3A3 to zero

Pay 3A1 to zero

Notionals:

3A2 ntl w/ 29.1666666643357% of 3A1

TRACK3 - Stack Price/Yield

Settle	1/31/2005
First Payment	2/25/2005

	1	2	3	4	5
COLLAT_1
Price	100	100	100	100	100
Yield	6.04	5.98	5.91	5.84	5.75
WAL	18.65	5.83	3.05	1.98	1.42
Mod Durn	10.394	4.330	2.552	1.752	1.294
Mod Convexity	1.683	0.364	0.131	0.063	0.036
Principal Window	Feb05 - Oct34	Feb05 - Oct34	Feb05 - Oct34	Feb05 - Oct34	Feb05 - May32
Price	100-00	100-00	100-00	100-00	100-00
3A1
Price	100	100	100	100	100
Yield	4.25	4.17	4.17	4.15	4.10
WAL	9.02	2.86	2.88	2.28	1.67
Mod Durn	7.089	2.583	2.595	2.099	1.570
Mod Convexity	0.724	0.111	0.112	0.073	0.041
Principal Window	Feb05 - Apr20	Feb05 - Apr12	Feb05 - Jul12	Feb05 - Jan12	Feb05 - Jun09
Price	100-00	100-00	100-00	100-00	100-00
3A2
Price	10	10	10	10	10
Yield	59.14	30.08	30.20	19.24	-3.08
WAL	9.02	2.86	2.88	2.28	1.67
Mod Durn	1.361	1.314	1.319	1.238	1.178
Mod Convexity	0.041	0.035	0.035	0.031	0.027
Principal Window	NA - NA	NA - NA	NA - NA	NA - NA	NA - NA
Price	10-00	10-00	10-00	10-00	10-00
3A3
Price	100	100	100	100	100
Yield	6.05	6.03	5.89	5.39	4.89
WAL	22.54	11.53	2.95	0.64	0.37
Mod Durn	20.252	8.610	2.275	0.606	0.353
Mod Convexity	4.330	0.965	0.149	0.008	0.003
Principal Window	Apr20 - Oct34	Aug09 - Oct34	Feb05 - Oct34	Feb05 - Jun06	Feb05 - Nov05
Price	100-00	100-00	100-00	100-00	100-00
3SUB
Price	100	100	100	100	100
Yield	6.04	6.02	6.01	6.00	5.98
WAL	18.65	11.12	8.79	7.46	5.32
Mod Durn	10.394	7.560	6.488	5.774	4.404
Mod Convexity	1.683	0.832	0.576	0.436	0.246
Principal Window	Feb05 - Oct34	Feb05 - Oct34	Feb05 - Oct34	Feb05 - Oct34	Feb05 - Aug30
Price	100-00	100-00	100-00	100-00	100-00
Prepay	0 PSA	250 PSA	500 PSA	750 PSA	1000 PSA

TRACK3 - Dec - 3A1


Date	1	2	3	4	5
31-Jan-05	100	100	100	100	100
25-Jan-06	96	80	80	80	72
25-Jan-07	92	61	61	51	32
25-Jan-08	88	43	43	26	10
25-Jan-09	83	28	28	12	2
25-Jan-10	78	15	16	5	0
25-Jan-11	73	7	8	1	0
25-Jan-12	67	1	2	0	0
25-Jan-13	61	0	0	0	0
25-Jan-14	55	0	0	0	0
25-Jan-15	48	0	0	0	0
25-Jan-16	40	0	0	0	0
25-Jan-17	31	0	0	0	0
25-Jan-18	22	0	0	0	0
25-Jan-19	12	0	0	0	0
25-Jan-20	2	0	0	0	0
25-Jan-21	0	0	0	0	0

WAL	9.02	2.86	2.88	2.28	1.67
Principal Window	Feb05-Apr20	Feb05-Apr12	Feb05-Jul12	Feb05-Jan12	Feb05-Jun09

Prepay	0 PSA	250 PSA	500 PSA	750 PSA	1000 PSA

TRACK3 - Dec - 3A2


Date	1	2	3	4	5
31-Jan-05	100	100	100	100	100
25-Jan-06	96	80	80	80	72
25-Jan-07	92	61	61	51	32
25-Jan-08	88	43	43	26	10
25-Jan-09	83	28	28	12	2
25-Jan-10	78	15	16	5	0
25-Jan-11	73	7	8	1	0
25-Jan-12	67	1	2	0	0
25-Jan-13	61	0	0	0	0
25-Jan-14	55	0	0	0	0
25-Jan-15	48	0	0	0	0
25-Jan-16	40	0	0	0	0
25-Jan-17	31	0	0	0	0
25-Jan-18	22	0	0	0	0
25-Jan-19	12	0	0	0	0
25-Jan-20	2	0	0	0	0
25-Jan-21	0	0	0	0	0

WAL	9.02	2.86	2.88	2.28	1.67
Principal Window

Prepay	0 PSA	250 PSA	500 PSA	750 PSA	1000 PSA

TRACK3 - Dec - 3A3


Date	1	2	3	4	5
31-Jan-05	100	100	100	100	100
25-Jan-06	106	104	63	21	0
25-Jan-07	113	108	36	0	0
25-Jan-08	120	110	20	0	0
25-Jan-09	127	112	16	0	0
25-Jan-10	135	112	17	0	0
25-Jan-11	143	108	18	0	0
25-Jan-12	152	101	19	0	0
25-Jan-13	161	86	16	0	0
25-Jan-14	171	72	10	0	0
25-Jan-15	182	60	7	0	0
25-Jan-16	193	49	5	0	0
25-Jan-17	205	40	3	0	0
25-Jan-18	218	33	2	0	0
25-Jan-19	231	27	1	0	0
25-Jan-20	245	22	1	0	0
25-Jan-21	238	18	1	0	0
25-Jan-22	224	14	*	0	0
25-Jan-23	209	11	*	0	0
25-Jan-24	194	9	*	0	0
25-Jan-25	177	7	*	0	0
25-Jan-26	160	5	*	0	0
25-Jan-27	141	4	*	0	0
25-Jan-28	121	3	*	0	0
25-Jan-29	99	2	*	0	0
25-Jan-30	76	1	*	0	0
25-Jan-31	52	1	*	0	0
25-Jan-32	25	*	*	0	0
25-Jan-33	16	*	*	0	0
25-Jan-34	7	*	*	0	0
25-Jan-35	0	0	0	0	0

WAL	22.54	11.53	2.95	0.64	0.37
Principal Window	Apr20-Oct34	Aug09-Oct34	Feb05~Oct34	Feb05-Jun06	Feb05-Nov05

Prepay	0 PSA	250 PSA	500 PSA	750 PSA	1000 PSA

TRACK3 - Dec - 3SUB


Date	1	2	3	4	5
31-Jan-05	100	100	100	100	100
25-Jan-06	99	99	99	99	99
25-Jan-07	98	98	98	98	98
25-Jan-08	97	97	97	97	97
25-Jan-09	96	96	96	96	97
25-Jan-10	94	94	95	95	52
25-Jan-11	93	89	84	79	21
25-Jan-12	91	82	72	61	8
25-Jan-13	90	73	57	33	3
25-Jan-14	88	63	42	18	1
25-Jan-15	86	52	29	10	1
25-Jan-16	83	43	20	5	*
25-Jan-17	81	35	13	3	*
25-Jan-18	78	29	9	1	*
25-Jan-19	74	24	6	1	*
25-Jan-20	71	19	4	*	*
25-Jan-21	67	16	3	*	*
25-Jan-22	64	12	2	*	*
25-Jan-23	59	10	1	*	*
25-Jan-24	55	8	1	*	*
25-Jan-25	50	6	*	*	*
25-Jan-26	45	5	*	*	*
25-Jan-27	40	3	*	*	*
25-Jan-28	34	3	*	*	*
25-Jan-29	28	2	*	*	*
25-Jan-30	22	1	*	*	*
25-Jan-31	15	1	*	*	0
25-Jan-32	7	*	*	*	0
25-Jan-33	5	*	*	*	0
25-Jan-34	2	*	*	*	0
25-Jan-35	0	0	0	0	0

WAL	18.65	11.12	8.79	7.46	5.32
Principal Window	Feb05-Oct34	Feb05-Oct34	Feb05-Oct34	Feb05-Oct34	Feb05-Aug30

Prepay	0 PSA	250 PSA	500 PSA	750 PSA	1000 PSA

Date	Balance
20050125	1.43E+08
20050225	1.41E+08
20050325	1.38E+08
20050425	1.36E+08
20050525	1.34E+08
20050625	1.31E+08
20050725	1.29E+08
20050825	1.27E+08
20050925	1.24E+08
20051025	1.22E+08
20051125	1.2E+08
20051225	1.17E+08
20060125	1.15E+08
20060225	1.13E+08
20060325	1.1E+08
20060425	1.08E+08
20060525	1.06E+08
20060625	1.03E+08
20060725	1.01E+08
20060825	98723262
20060925	96382435
20061025	94042685
20061125	91704552
20061225	89368613
20070125	87035478
20070225	84705789
20070325	82388616
20070425	80098449
20070525	77843793
20070625	75624106
20070725	73438857
20070825	71287521
20070925	69169581
20071025	67084528
20071125	65031861
20071225	63011087
20080125	61021720
20080225	59063281
20080325	57135299
20080425	55237309
20080525	53368854
20080625	51529485
20080725	49718756
20080825	47936232
20080925	46181482
20081025	44454083
20081125	42753617
20081225	41079674
20090125	39431849
20090225	37809743
20090325	36212963
20090425	34641124
20090525	33093844
20090625	31578176
20090725	30103112
20090825	28667578
20090925	27270529
20091025	25910947
20091125	24587839
20091225	23300241
20100125	22047212
20100225	20873184
20100325	19731468
20100425	18621199
20100525	17541536
20100625	16491659
20100725	15470770
20100825	14478094
20100925	13512875
20101025	12574375
20101125	11661879
20101225	10774690
20110125	9912128
20110225	9087109
20110325	8285135
20110425	7505582
20110525	6747845
20110625	6011335
20110725	5295476
20110825	4599710
20110925	3923492
20111025	3266294
20111125	2627600
20111225	2006908
20120125	1403730
20120225	841200.8
20120325	294575.9
20120425	0

TRACK3 - Dec - COLLAT


Date	1	2	3	4	5
31-Jan-05	100	100	100	100	100
25-Jan-06	99	88	76	65	53
25-Jan-07	98	75	55	38	25
25-Jan-08	97	63	38	21	10
25-Jan-09	96	53	26	11	4
25-Jan-10	94	44	18	6	2
25-Jan-11	93	37	13	3	1
25-Jan-12	91	31	9	2	*
25-Jan-13	90	26	6	1	*
25-Jan-14	88	22	4	1	*
25-Jan-15	86	18	3	*	*
25-Jan-16	83	15	2	*	*
25-Jan-17	81	12	1	*	*
25-Jan-18	78	10	1	*	*
25-Jan-19	74	8	1	*	*
25-Jan-20	71	7	*	*	*
25-Jan-21	67	5	*	*	*
25-Jan-22	64	4	*	*	*
25-Jan-23	59	3	*	*	*
25-Jan-24	55	3	*	*	*
25-Jan-25	50	2	*	*	*
25-Jan-26	45	2	*	*	*
25-Jan-27	40	1	*	*	*
25-Jan-28	34	1	*	*	*
25-Jan-29	28	1	*	*	*
25-Jan-30	22	*	*	*	*
25-Jan-31	15	*	*	*	0
25-Jan-32	7	*	*	*	0
25-Jan-33	5	*	*	*	0
25-Jan-34	2	*	*	*	0
25-Jan-35	0	0	0	0	0

WAL	18.65	5.83	3.05	1.98	1.42
Principal Window	Feb05-Oct34	Feb05-Oct34	Feb05-Oct34	Feb05-Oct34	Feb05-May32

Prepay	0 PSA	250 PSA	500 PSA	750 PSA	1000 PSA

--------------------------------------------------

$ VERSION: 3.01 (BLOOMBERG CMO BOND FILE)

--------------------------------------------------

$ DEAL: gstrack3up

$ PRICING: 500 PSA

$ SETTLEMENT: 20050131

------------------------------------------

$ BLOCK: 1

$ GROUP_LINK: 1

!{ TRANCHE NAME: 3A1 }

$ ORIGINAL_AMOUNT: 143000000.00

$ CURRENT_FACTOR: 1.000000000

$ CURRENT_COUPON: 4.25

$ PRINCIPAL_FREQ: 12

$ PAYMENT_DELAY: 24

$ DATED_DATE: 20050101

$ FIRST_PAYMENT_DATE: 20050225

$ NEXT_PAYMENT_DATE: 20050225

$ ACCRUAL_METHOD: THIRTY_360

--------------------------------------------------

$ BLOCK: 2

$ GROUP_LINK: 1

!{ TRANCHE NAME: 3A3 }

$ ORIGINAL_AMOUNT: 56717000.00

$ CURRENT_FACTOR: 1.000000000

$ CURRENT_COUPON: 6

$ PRINCIPAL_FREQ: 12

$ PAYMENT_DELAY: 24

$ DATED_DATE: 20050101

$ FIRST_PAYMENT_DATE: 20050225

$ NEXT_PAYMENT_DATE: 20050225

$ ACCRUAL_METHOD: THIRTY_360

--------------------------------------------------

$ BLOCK: 3

$ GROUP_LINK: 1

!{ TRANCHE NAME: 3SUB }

$ ORIGINAL_AMOUNT: 6177092.56

$ CURRENT_FACTOR: 1.000000000

$ CURRENT_COUPON: 6

$ PRINCIPAL_FREQ: 12

$ PAYMENT_DELAY: 24

$ DATED_DATE: 20050101

$ FIRST_PAYMENT_DATE: 20050225

$ NEXT_PAYMENT_DATE: 20050225

$ ACCRUAL_METHOD: THIRTY_360

--------------------------------------------------

$ PHANTOM: 4

!{ TRANCHE NAME: 3A2 }

$ ORIGINAL_AMOUNT: 41708333.33

$ CURRENT_FACTOR: 1.000000000

$ CURRENT_COUPON: 6

$ PRINCIPAL_FREQ: 12

$ PAYMENT_DELAY: 24

$ DATED_DATE: 20050101

$ FIRST_PAYMENT_DATE: 20050225

$ NEXT_PAYMENT_DATE: 20050225

$ ACCRUAL_METHOD: THIRTY_360

--------------------------------------------------

$ TRANCHE: 1

$ NAME: "3A1"

$ CSORT: 1

$ TYPE: AD,PAC

$ RECORD_DELAY: 24

$ COMPOSITION: BLOCK: 1 PRIN: 100.000000000 INT: 100.000000000

--------------------------------------------------

$ TRANCHE: 2

$ NAME: "3A2"

$ CSORT: 2

$ TYPE: AD,IO,NTL,PAC

$ RECORD_DELAY: 24

$ NOTIONAL:

$ COMPOSITION: BLOCK: 4 PRIN: 100.000000000 INT: 100.000000000

! ( notional tranche name is 3A2 )

--------------------------------------------------

$ TRANCHE: 3

$ NAME: "3A3"

$ CSORT: 3

$ TYPE: Z

$ RECORD_DELAY: 24

$ COMPOSITION: BLOCK: 2 PRIN: 100.000000000 INT: 100.000000000

--------------------------------------------------

$ TRANCHE: 4

$ NAME: "3SUB"

$ CSORT: 4

$ TYPE: SUB

$ RECORD_DELAY: 24

$ COMPOSITION: BLOCK: 3 PRIN: 100.000000000 INT: 100.000000000

--------------------------------------------------

$ END_TRANCHES:

--------------------------------------------------

$ SCHEDULE: 1

$ PAYS: { TRANCHE(3A1,3A2) }

20050125 143000000.00

20050225 140682564.22

20050325 138364669.69

20050425 136045928.21

20050525 133726006.48

20050625 131404626.04

20050725 129081563.10

20050825 126756648.26

20050925 124429766.12

20051025 122100854.80

20051125 119769905.36

20051225 117436961.04

20060125 115102116.48

20060225 112765516.78

20060325 110427356.48

20060425 108087878.39

20060525 105747372.39

20060625 103406174.03

20060725 101064663.17

20060825 98723262.37

20060925 96382435.30

20061025 94042685.02

20061125 91704552.18

20061225 89368613.13

20070125 87035477.97

20070225 84705788.55

20070325 82388616.17

20070425 80098449.24

20070525 77843792.94

20070625 75624106.49

20070725 73438857.32

20070825 71287520.89

20070925 69169580.61

20071025 67084527.70

20071125 65031861.09

20071225 63011087.27

20080125 61021720.23

20080225 59063281.30

20080325 57135299.05

20080425 55237309.20

20080525 53368854.49

20080625 51529484.59

20080725 49718755.99

20080825 47936231.89

20080925 46181482.12

20081025 44454083.01

20081125 42753617.32

20081225 41079674.13

20090125 39431848.73

20090225 37809742.58

20090325 36212963.14

20090425 34641123.84

20090525 33093843.96

20090625 31578175.50

20090725 30103111.63

20090825 28667578.18

20090925 27270529.29

20091025 25910946.67

20091125 24587838.86

20091225 23300240.54

20100125 22047211.84

20100225 20873184.19

20100325 19731468.06

20100425 18621199.09

20100525 17541535.73

20100625 16491658.71

20100725 15470770.42

20100825 14478094.35

20100925 13512874.53

20101025 12574375.01

20101125 11661879.30

20101225 10774689.88

20110125 9912127.70

20110225 9087108.95

20110325 8285134.56

20110425 7505582.01

20110525 6747845.30

20110625 6011334.56

20110725 5295475.60

20110825 4599709.52

20110925 3923492.27

20111025 3266294.29

20111125 2627600.12

20111225 2006908.03

20120125 1403729.65

20120225 841200.80

20120325 294575.91

20120425 0.00

END SCHEDULE: 1

--------------------------------------------------

END OF BOND FILE

$ VERSION: 3.03 (BLOOMBERG CMO COLLATERAL FILE)

---------------------------------------------------

$ AGENCY_LIST: Type Factor Date P/Y Delay BV Delay

WHOLE 20050101 55 54

---------------------------------------------------

$ ASSUMED_POOLS:

--------------------------------------------------------------------------------

!G Pool Number Pool Type NET-CPN CURR--FACT ORIG--BALANCE PY-FEE BV-FEE PY/BV/BLN-W AGE

--------------------------------------------------------------------------------

1 M 1 WHOLE XX/XX 6.000000000 1.00000000 20084002.85 0.073872683 0.073872683 240 240 357 3

1 M 2 WHOLE XX/XX 6.000000000 1.00000000 32567486.05 0.373692196 0.373692196 240 240 356 4

1 M 3 WHOLE XX/XX 6.000000000 1.00000000 19837651.06 0.129508137 0.129508137 354 354 354 5

1 M 4 WHOLE XX/XX 6.000000000 1.00000000 133404952.60 0.698743469 0.698743469 324 324 324 31

--------------------------------------------------

$ VERSION: 3.01 (BLOOMBERG CMO BOND FILE)

--------------------------------------------------

$ DEAL: GSR05-2F-1

$ PRICING: 500 PSA

$ SETTLEMENT: 20050128

------------------------------------------

$ BLOCK: 1

!{ TRANCHE NAME: 1P1 }

$ ORIGINAL_AMOUNT: 49000000.00

$ CURRENT_FACTOR: 1.000000000

$ CURRENT_COUPON: 4

$ PRINCIPAL_FREQ: 12

$ PAYMENT_DELAY: 24

$ DATED_DATE: 20050101

$ FIRST_PAYMENT_DATE: 20050225

$ NEXT_PAYMENT_DATE: 20050225

$ ACCRUAL_METHOD: THIRTY_360

--------------------------------------------------

$ BLOCK: 2

!{ TRANCHE NAME: 1P2 }

$ ORIGINAL_AMOUNT: 50000000.00

$ CURRENT_FACTOR: 1.000000000

$ CURRENT_COUPON: 4.25

$ PRINCIPAL_FREQ: 12

$ PAYMENT_DELAY: 24

$ DATED_DATE: 20050101

$ FIRST_PAYMENT_DATE: 20050225

$ NEXT_PAYMENT_DATE: 20050225

$ ACCRUAL_METHOD: THIRTY_360

--------------------------------------------------

$ BLOCK: 3

!{ TRANCHE NAME: 1P3 }

$ ORIGINAL_AMOUNT: 49000000.00

$ CURRENT_FACTOR: 1.000000000

$ CURRENT_COUPON: 4.5

$ PRINCIPAL_FREQ: 12

$ PAYMENT_DELAY: 24

$ DATED_DATE: 20050101

$ FIRST_PAYMENT_DATE: 20050225

$ NEXT_PAYMENT_DATE: 20050225

$ ACCRUAL_METHOD: THIRTY_360

--------------------------------------------------

$ BLOCK: 4

!{ TRANCHE NAME: 1Z }

$ ORIGINAL_AMOUNT: 55280000.00

$ CURRENT_FACTOR: 1.000000000

$ CURRENT_COUPON: 6

$ PRINCIPAL_FREQ: 12

$ PAYMENT_DELAY: 24

$ DATED_DATE: 20050101

$ FIRST_PAYMENT_DATE: 20050225

$ NEXT_PAYMENT_DATE: 20050225

$ ACCRUAL_METHOD: THIRTY_360

--------------------------------------------------

$ BLOCK: 5

!{ TRANCHE NAME: 1SUB }

$ ORIGINAL_AMOUNT: 5219541.85

$ CURRENT_FACTOR: 1.000000000

$ CURRENT_COUPON: 6

$ PRINCIPAL_FREQ: 12

$ PAYMENT_DELAY: 24

$ DATED_DATE: 20050101

$ FIRST_PAYMENT_DATE: 20050225

$ NEXT_PAYMENT_DATE: 20050225

$ ACCRUAL_METHOD: THIRTY_360

--------------------------------------------------

$ PHANTOM: 6

!{ TRANCHE NAME: 1PK }

$ ORIGINAL_AMOUNT: 43166666.00

$ CURRENT_FACTOR: 1.000000000

$ CURRENT_COUPON: 6

$ PRINCIPAL_FREQ: 12

$ PAYMENT_DELAY: 24

$ DATED_DATE: 20050101

$ FIRST_PAYMENT_DATE: 20050225

$ NEXT_PAYMENT_DATE: 20050225

$ ACCRUAL_METHOD: THIRTY_360

--------------------------------------------------

$ TRANCHE: 1

$ NAME: "1P1"

$ CSORT: 1

$ TYPE: AD,PAC

$ RECORD_DELAY: 24

$ COMPOSITION: BLOCK: 1 PRIN: 100.000000000 INT: 100.000000000

--------------------------------------------------

$ TRANCHE: 2

$ NAME: "1P2"

$ CSORT: 2

$ TYPE: AD,PAC

$ RECORD_DELAY: 24

$ COMPOSITION: BLOCK: 2 PRIN: 100.000000000 INT: 100.000000000

--------------------------------------------------

$ TRANCHE: 3

$ NAME: "1P3"

$ CSORT: 3

$ TYPE: AD,PAC

$ RECORD_DELAY: 24

$ COMPOSITION: BLOCK: 3 PRIN: 100.000000000 INT: 100.000000000

--------------------------------------------------

$ TRANCHE: 4

$ NAME: "1PK"

$ CSORT: 4

$ TYPE: AD,IO,NTL,PAC

$ RECORD_DELAY: 24

$ NOTIONAL:

$ COMPOSITION: BLOCK: 6 PRIN: 100.000000000 INT: 100.000000000

! ( notional tranche name is 1PK )

--------------------------------------------------

$ TRANCHE: 5

$ NAME: "1Z"

$ CSORT: 5

$ TYPE: Z

$ RECORD_DELAY: 24

$ COMPOSITION: BLOCK: 4 PRIN: 100.000000000 INT: 100.000000000

--------------------------------------------------

$ TRANCHE: 6

$ NAME: "1SUB"

$ CSORT: 6

$ TYPE: SUB

$ RECORD_DELAY: 24

$ COMPOSITION: BLOCK: 5 PRIN: 100.000000000 INT: 100.000000000

--------------------------------------------------

$ END_TRANCHES:

--------------------------------------------------

$ SCHEDULE: 1

$ PAYS: { TRANCHE(1P1,1P2,1P3,1PK) }

20050125 148000000.00

20050225 145857208.73

20050325 143633975.41

20050425 141332823.94

20050525 138956380.93

20050625 136507370.79

20050725 133988610.53

20050825 131473202.92

20050925 128961105.18

20051025 126452324.29

20051125 123946916.05

20051225 121444984.14

20060125 118946678.99

20060225 116452196.62

20060325 113961777.33

20060425 111475704.37

20060525 108994302.41

20060625 106517936.06

20060725 104047008.14

20060825 101581958.07

20060925 99123259.99

20061025 96671420.93

20061125 94226978.87

20061225 91790500.78

20070125 89362580.52

20070225 86951381.52

20070325 84557217.78

20070425 82180421.08

20070525 79840532.09

20070625 77537005.67

20070725 75270119.57

20070825 73039307.89

20070925 70844013.39

20071025 68683687.32

20071125 66557789.33

20071225 64465787.30

20080125 62407157.25

20080225 60381383.21

20080325 58387957.09

20080425 56426378.56

20080525 54496154.93

20080625 52596801.08

20080725 50727839.25

20080825 48888799.03

20080925 47079217.18

20081025 45298637.57

20081125 43546611.02

20081225 41822695.24

20090125 40126454.70

20090225 38457460.55

20090325 36815290.48

20090425 35202535.62

20090525 33634061.97

20090625 32108678.58

20090725 30625226.32

20090825 29182576.96

20090925 27779632.44

20091025 26415324.00

20091125 25088611.46

20091225 23798482.39

20100125 22543951.47

20100225 21360674.66

20100325 20210667.79

20100425 19093025.19

20100525 18006865.48

20100625 16951330.88

20100725 15925586.65

20100825 14928820.39

20100925 13960241.53

20101025 13019080.70

20101125 12104589.20

20101225 11216038.39

20110125 10352719.25

20110225 9524771.37

20110325 8720448.65

20110425 7939101.29

20110525 7180097.03

20110625 6442820.65

20110725 5726673.53

20110825 5031073.20

20110925 4355452.93

20111025 3699261.29

20111125 3061961.75

20111225 2443032.27

20120125 1841964.94

20120225 1276844.20

20120325 728038.12

20120425 195091.20

20120525 0.00

END SCHEDULE: 1

--------------------------------------------------

END OF BOND FILE

***************************************************

$ VERSION: 3.03 (BLOOMBERG CMO COLLATERAL FILE)

---------------------------------------------------

$ AGENCY_LIST: Type Factor Date P/Y Delay BV Delay

WHOLE 20050101 55 54

---------------------------------------------------

$ ASSUMED_POOLS:

--------------------------------------------------------------------------------

!G Pool Number Pool Type NET-CPN CURR--FACT ORIG--BALANCE PY-FEE BV-FEE PY/BV/BLN-W AGE

--------------------------------------------------------------------------------

M 1 WHOLE XX/XX 6.000000000 1.00000000 2021000.00 0.031519050 0.031519050 240 240 240 1

M 2 WHOLE XX/XX 6.000000000 1.00000000 47147720.81 0.487547006 0.487547006 240 240 240 3

M 3 WHOLE XX/XX 6.000000000 1.00000000 17757948.81 0.011849948 0.011849948 354 354 354 6

M 4 WHOLE XX/XX 6.000000000 1.00000000 141572872.23 0.609095722 0.609095722 331 331 331 24

GSR05-2F-1 - Summary

Balance	WAC	WAM	Age	WAL	Dur
$208,499,541.85	6.525	311	17	2.99

					Assumptions
Settlement		28-Jan-2005	Prepay		500 PSA
1st Pay Date		25-Feb-2005



Tranche	Rating	Balance	Coupon	Principal	Avg	Dated	Notes
Name				Window	Life	Date
1P1		49,000,000.00	4	02/05 - 09/12	2.87	01-Jan-05	FIX
1P2		50,000,000.00	4.25	02/05 - 09/12	2.87	01-Jan-05	FIX
1P3		49,000,000.00	4.5	02/05 - 09/12	2.87	01-Jan-05	FIX
1PK		43,166,666.00	6	02/05 - 09/12	2.87	01-Jan-05	IO
1Z		55,280,000.00	6	02/05 - 07/34	2.88	01-Jan-05	FIX
1SUB		5,219,541.85	6	02/05 - 07/34	8.37	01-Jan-05	FIX

Payrules:

Pay 1Z accruals to 1P1, 1P2, 1P3 pro rata to schedule, then to 1Z

Pay 1P1, 1P2, 1P3 pro rata to schedule.
Pay 1Z to zero.
Pay 1P1, 1P2, 1P3 pro rata to zero.


Collateral replines:
	WAC	Servicing Fee	NWAC	Balance	Orig Balance	WAM	Orig WAM	Age
Disc IO	6.032	0.03151905	6	2021000	2021000	240	240	1
Prem IO	6.488	0.487547006	6	47147720.81	47147720.81	240	240	3
Disc	6.012	0.011849948	6	17757948.81	17757948.81	354	360	6
Prem	6.609	0.609095722	6	141572872.2	141572872.2	331	360	24

GSR05-2F-1 - Dec - 1P1


Date	1	2	3	4	200 Pricing
28-Jan-05	100	100	100	100	100
25-Jan-06	95	80	80	80	72
25-Jan-07	91	60	60	50	31
25-Jan-08	86	42	42	25	10
25-Jan-09	80	27	27	12	2
25-Jan-10	74	15	15	5	0
25-Jan-11	68	7	8	2	0
25-Jan-12	62	1	2	*	0
25-Jan-13	55	0	0	0	0
25-Jan-14	47	0	0	0	0
25-Jan-15	39	0	0	0	0
25-Jan-16	31	0	0	0	0
25-Jan-17	22	0	0	0	0
25-Jan-18	13	0	0	0	0
25-Jan-19	2	0	0	0	0
25-Jan-20	0	0	0	0	0

WAL	8.19	2.85	2.87	2.28	1.68
Principal Window	Feb05-Apr19	Feb05-May12	Feb05-Sep12	Feb05-Oct12	Feb05-Aug09

Prepay	0 PSA	250 PSA	500 PSA	750 PSA	1000 PSA


Disclaimer:

GSR05-2F-1 - Dec - 1P2


Date	1	2	3	4	200 Pricing
28-Jan-05	100	100	100	100	100
25-Jan-06	95	80	80	80	72
25-Jan-07	91	60	60	50	31
25-Jan-08	86	42	42	25	10
25-Jan-09	80	27	27	12	2
25-Jan-10	74	15	15	5	0
25-Jan-11	68	7	8	2	0
25-Jan-12	62	1	2	*	0
25-Jan-13	55	0	0	0	0
25-Jan-14	47	0	0	0	0
25-Jan-15	39	0	0	0	0
25-Jan-16	31	0	0	0	0
25-Jan-17	22	0	0	0	0
25-Jan-18	13	0	0	0	0
25-Jan-19	2	0	0	0	0
25-Jan-20	0	0	0	0	0

WAL	8.19	2.85	2.87	2.28	1.68
Principal Window	Feb05-Apr19	Feb05-May12	Feb05-Sep12	Feb05-Oct12	Feb05-Aug09

Prepay	0 PSA	250 PSA	500 PSA	750 PSA	1000 PSA


Disclaimer:

GSR05-2F-1 - Dec - 1P3


Date	1	2	3	4	200 Pricing
28-Jan-05	100	100	100	100	100
25-Jan-06	95	80	80	80	72
25-Jan-07	91	60	60	50	31
25-Jan-08	86	42	42	25	10
25-Jan-09	80	27	27	12	2
25-Jan-10	74	15	15	5	0
25-Jan-11	68	7	8	2	0
25-Jan-12	62	1	2	*	0
25-Jan-13	55	0	0	0	0
25-Jan-14	47	0	0	0	0
25-Jan-15	39	0	0	0	0
25-Jan-16	31	0	0	0	0
25-Jan-17	22	0	0	0	0
25-Jan-18	13	0	0	0	0
25-Jan-19	2	0	0	0	0
25-Jan-20	0	0	0	0	0

WAL	8.19	2.85	2.87	2.28	1.68
Principal Window	Feb05-Apr19	Feb05-May12	Feb05-Sep12	Feb05-Oct12	Feb05-Aug09

Prepay	0 PSA	250 PSA	500 PSA	750 PSA	1000 PSA


Disclaimer:

GSR05-2F-1 - Dec - 1PK


Date	1	2	3	4	200 Pricing
28-Jan-05	100	100	100	100	100
25-Jan-06	95	80	80	80	72
25-Jan-07	91	60	60	50	31
25-Jan-08	86	42	42	25	10
25-Jan-09	80	27	27	12	2
25-Jan-10	74	15	15	5	0
25-Jan-11	68	7	8	2	0
25-Jan-12	62	1	2	*	0
25-Jan-13	55	0	0	0	0
25-Jan-14	47	0	0	0	0
25-Jan-15	39	0	0	0	0
25-Jan-16	31	0	0	0	0
25-Jan-17	22	0	0	0	0
25-Jan-18	13	0	0	0	0
25-Jan-19	2	0	0	0	0
25-Jan-20	0	0	0	0	0

WAL	8.19	2.85	2.87	2.28	1.68
Principal Window

Prepay	0 PSA	250 PSA	500 PSA	750 PSA	1000 PSA


Disclaimer:

GSR05-2F-1 - Dec - 1Z


Date	1	2	3	4	200 Pricing
28-Jan-05	100	100	100	100	100
25-Jan-06	106	104	62	19	0
25-Jan-07	113	108	34	0	0
25-Jan-08	120	111	19	0	0
25-Jan-09	127	112	15	0	0
25-Jan-10	135	111	16	0	0
25-Jan-11	143	106	17	0	0
25-Jan-12	152	100	18	0	0
25-Jan-13	161	84	16	0	0
25-Jan-14	171	69	10	0	0
25-Jan-15	182	57	7	0	0
25-Jan-16	193	46	5	0	0
25-Jan-17	205	38	3	0	0
25-Jan-18	218	30	2	0	0
25-Jan-19	231	24	1	0	0
25-Jan-20	223	19	1	0	0
25-Jan-21	207	15	1	0	0
25-Jan-22	191	12	*	0	0
25-Jan-23	173	9	*	0	0
25-Jan-24	154	7	*	0	0
25-Jan-25	134	5	*	0	0
25-Jan-26	120	4	*	0	0
25-Jan-27	105	3	*	0	0
25-Jan-28	90	2	*	0	0
25-Jan-29	73	1	*	0	0
25-Jan-30	56	1	*	0	0
25-Jan-31	37	1	*	0	0
25-Jan-32	16	*	*	0	0
25-Jan-33	3	*	*	0	0
25-Jan-34	1	*	*	0	0
25-Jan-35	0	0	0	0	0

WAL	21.3	11.17	2.88	0.64	0.39
Principal Window	May19-Jul34	Jun09-Jul34	Feb05~Jul34	Feb05-May06	Feb05-Oct05

Prepay	0 PSA	250 PSA	500 PSA	750 PSA	1000 PSA


Disclaimer:

GSR05-2F-1 - Dec - 1SUB


Date	1	2	3	4	200 Pricing
28-Jan-05	100	100	100	100	100
25-Jan-06	98	98	98	98	98
25-Jan-07	97	97	97	97	96
25-Jan-08	95	95	95	95	94
25-Jan-09	93	93	93	92	92
25-Jan-10	91	91	90	90	59
25-Jan-11	89	84	79	74	23
25-Jan-12	86	77	67	56	9
25-Jan-13	84	68	52	36	3
25-Jan-14	81	57	38	19	1
25-Jan-15	78	47	26	10	1
25-Jan-16	75	38	17	5	*
25-Jan-17	72	31	11	3	*
25-Jan-18	68	25	8	1	*
25-Jan-19	65	20	5	1	*
25-Jan-20	61	16	3	*	*
25-Jan-21	56	13	2	*	*
25-Jan-22	52	10	1	*	*
25-Jan-23	47	8	1	*	*
25-Jan-24	42	6	1	*	*
25-Jan-25	36	4	*	*	*
25-Jan-26	33	3	*	*	*
25-Jan-27	29	2	*	*	*
25-Jan-28	24	2	*	*	*
25-Jan-29	20	1	*	*	*
25-Jan-30	15	1	*	*	0
25-Jan-31	10	*	*	*	0
25-Jan-32	4	*	*	*	0
25-Jan-33	1	*	*	*	0
25-Jan-34	*	*	*	*	0
25-Jan-35	0	0	0	0	0

WAL	16.55	10.39	8.37	7.29	5.34
Principal Window	Feb05-Jul34	Feb05-Jul34	Feb05-Jul34	Feb05-Jul34	Feb05-Jan30

Prepay	0 PSA	250 PSA	500 PSA	750 PSA	1000 PSA


Disclaimer:

Date	Balance
20050125	1.48E+08
20050225	1.46E+08
20050325	1.44E+08
20050425	1.41E+08
20050525	1.39E+08
20050625	1.37E+08
20050725	1.34E+08
20050825	1.31E+08
20050925	1.29E+08
20051025	1.26E+08
20051125	1.24E+08
20051225	1.21E+08
20060125	1.19E+08
20060225	1.16E+08
20060325	1.14E+08
20060425	1.11E+08
20060525	1.09E+08
20060625	1.07E+08
20060725	1.04E+08
20060825	1.02E+08
20060925	99123260
20061025	96671421
20061125	94226979
20061225	91790501
20070125	89362581
20070225	86951382
20070325	84557218
20070425	82180421
20070525	79840532
20070625	77537006
20070725	75270120
20070825	73039308
20070925	70844013
20071025	68683687
20071125	66557789
20071225	64465787
20080125	62407157
20080225	60381383
20080325	58387957
20080425	56426379
20080525	54496155
20080625	52596801
20080725	50727839
20080825	48888799
20080925	47079217
20081025	45298638
20081125	43546611
20081225	41822695
20090125	40126455
20090225	38457461
20090325	36815290
20090425	35202536
20090525	33634062
20090625	32108679
20090725	30625226
20090825	29182577
20090925	27779632
20091025	26415324
20091125	25088611
20091225	23798482
20100125	22543951
20100225	21360675
20100325	20210668
20100425	19093025
20100525	18006865
20100625	16951331
20100725	15925587
20100825	14928820
20100925	13960242
20101025	13019081
20101125	12104589
20101225	11216038
20110125	10352719
20110225	9524771
20110325	8720449
20110425	7939101
20110525	7180097
20110625	6442821
20110725	5726674
20110825	5031073
20110925	4355453
20111025	3699261
20111125	3061962
20111225	2443032
20120125	1841965
20120225	1276844
20120325	728038.1
20120425	195091.2
20120525	0

GSR05-2F-1 - Dec - COLLAT


Date	1	2	3	4	200 Pricing
28-Jan-05	100	100	100	100	100
25-Jan-06	98	87	76	65	53
25-Jan-07	97	74	54	38	25
25-Jan-08	95	62	37	20	10
25-Jan-09	93	51	26	11	4
25-Jan-10	91	43	17	6	1
25-Jan-11	89	35	12	3	1
25-Jan-12	86	29	8	2	*
25-Jan-13	84	24	5	1	*
25-Jan-14	81	20	4	*	*
25-Jan-15	78	16	3	*	*
25-Jan-16	75	13	2	*	*
25-Jan-17	72	11	1	*	*
25-Jan-18	68	9	1	*	*
25-Jan-19	65	7	*	*	*
25-Jan-20	61	6	*	*	*
25-Jan-21	56	4	*	*	*
25-Jan-22	52	3	*	*	*
25-Jan-23	47	3	*	*	*
25-Jan-24	42	2	*	*	*
25-Jan-25	36	1	*	*	*
25-Jan-26	33	1	*	*	*
25-Jan-27	29	1	*	*	*
25-Jan-28	24	1	*	*	*
25-Jan-29	20	*	*	*	*
25-Jan-30	15	*	*	*	0
25-Jan-31	10	*	*	*	0
25-Jan-32	4	*	*	*	0
25-Jan-33	1	*	*	*	0
25-Jan-34	*	*	*	*	0
25-Jan-35	0	0	0	0	0

WAL	16.55	5.56	2.99	1.97	1.43
Principal Window	Feb05-Jul34	Feb05-Jul34	Feb05-Jul34	Feb05-Jul34	Feb05-Sep31

Prepay	0 PSA	250 PSA	500 PSA	750 PSA	1000 PSA


Disclaimer:

GSR05-2F-1 - Stack Price/Yield

Settle	1/28/2005
First Payment	2/25/2005

	1	2	3	4	200 Pricing
COLLAT
Price	100	100	100	100	100
Yield	6.03380	5.97989	5.91623	5.84596	5.76754
WAL	16.55	5.56	2.99	1.97	1.43
Mod Durn	9.58	4.18	2.51	1.74	1.30
Mod Convexity	1.455	0.338	0.126	0.062	0.035
Principal Window	Feb05 - Jul34	Feb05 - Jul34	Feb05 - Jul34	Feb05 - Jul34	Feb05 - Sep31
1P1
Price	100	100	100	100	100
Yield	3.99328	3.93065	3.93126	3.90683	3.86451
WAL	8.19	2.85	2.87	2.28	1.68
Mod Durn	6.63	2.59	2.61	2.10	1.58
Mod Convexity	0.634	0.111	0.113	0.073	0.041
Principal Window	Feb05 - Apr19	Feb05 - May12	Feb05 - Sep12	Feb05 - Oct12	Feb05 - Aug09
1P2
Price	100	100	100	100	100
Yield	4.24456	4.17792	4.17855	4.15259	4.10761
WAL	8.19	2.85	2.87	2.28	1.68
Mod Durn	6.55	2.58	2.59	2.09	1.57
Mod Convexity	0.622	0.110	0.112	0.073	0.041
Principal Window	Feb05 - Apr19	Feb05 - May12	Feb05 - Sep12	Feb05 - Oct12	Feb05 - Aug09
1P3
Price	100	100	100	100	100
Yield	4.49603	4.42536	4.42603	4.39853	4.35089
WAL	8.19	2.85	2.87	2.28	1.68
Mod Durn	6.46	2.56	2.58	2.08	1.57
Mod Convexity	0.610	0.109	0.111	0.072	0.041
Principal Window	Feb05 - Apr19	Feb05 - May12	Feb05 - Sep12	Feb05 - Oct12	Feb05 - Aug09
1PK
Price	10	10	10	10	10
Yield	58.18741	30.08121	30.22471	19.10871	-2.86859
WAL	8.19	2.85	2.87	2.28	1.68
Mod Durn	1.36	1.31	1.32	1.25	1.19
Mod Convexity	0.040	0.035	0.036	0.032	0.028
Principal Window	NA - NA	NA - NA	NA - NA	NA - NA	NA - NA
1Z
Price	100	100	100	100	100
Yield	6.05461	6.02819	5.89517	5.41836	5.01217
WAL	21.30	11.17	2.88	0.64	0.39
Mod Durn	19.11	8.44	2.22	0.61	0.38
Mod Convexity	3.879	0.922	0.144	0.008	0.004
Principal Window	May19 - Jul34	Jun09 - Jul34	Feb05 - Jul34	Feb05 - May06	Feb05 - Oct05
1SUB
Price	100	100	100	100	100
Yield	6.03380	6.01991	6.01135	6.00475	5.98488
WAL	16.55	10.39	8.37	7.29	5.34
Mod Durn	9.58	7.19	6.23	5.64	4.41
Mod Convexity	1.455	0.760	0.538	0.426	0.249
Principal Window	Feb05 - Jul34	Feb05 - Jul34	Feb05 - Jul34	Feb05 - Jul34	Feb05 - Jan30
Prepay	0 PSA	250 PSA	500 PSA	750 PSA	1000 PSA


Disclaimer:

CMO GSR 0521 1P1 Scenario Report (Intex)												Goldman Sachs
Generated: 01/11/2005 11:15:26 Page 1 of 1

CUSIP			Monthly			As Of	1/05		Pricing	1/10/05	Original	148,000,000.00
Description:	Accretion Directed,Senior,Pac								Settle	1/31/05	Balance	148,000,000.00
Coupon:	4.250%								Next Proj	2/25/05	Factor	1.00000000
Collateral:	Cpn	6.00	WAC	6.53	WAM	311 WALA 17			Stated Final	0/0/00	Delay	24
Historical CPR’s:		1/05= 12/04=			11/04=	3mo=	6mo= 12mo= SI=
Curve: 3m=	6m=	1yr=	2yr= 3yr=		4yr= 5yr=	7yr= 10yr= 30yr=

			Input	Output		PSA		PSA	PSA	PSA	PSA
		PREPAY				500		100	200	300	400
				Av Life		2.855		4.732	3.124	2.848	2.848
			Price	Window		2/05-6/12		2/05-9/14	2/05-5/12	2/05-5/12	2/05-5/12
			99-00		Yield	4.563		4.462	4.541	4.564	4.564
			99-00+		Yield	4.557		4.458	4.535	4.558	4.558

			99-01		Yield	4.551		4.454	4.529	4.552	4.552
			99-01+		Yield	4.545		4.450	4.524	4.545	4.545
			99-02		Yield	4.539		4.446	4.518	4.539	4.539
			99-02+		Yield	4.533		4.442	4.512	4.533	4.533
			99-03		Yield	4.527		4.438	4.507	4.527	4.527

			99-03+		Yield	4.520		4.435	4.501	4.521	4.521
			99-04		Yield	4.514		4.431	4.495	4.515	4.515
			99-04+		Yield	4.508		4.427	4.490	4.509	4.509
			99-05		Yield	4.502		4.423	4.484	4.502	4.502
			99-05+		Yield	4.496		4.419	4.479	4.496	4.496

			99-06		Yield	4.490		4.415	4.473	4.490	4.490




This material is for your private information, and we are not soliciting any action based upon it. Certain transactions, including those involving futures, options and high yield securities, give rise to substantial risk and are not suitable for all investors. Opinions expressed are our present opinions only. This material is based upon information that we consider reliable, but we do not represent it as accurate or complete. We or persons involved in the preparation or issuance of this material, may from time to time have positions or conduct transactions in the securities mentioned herein. This material has been issued by Goldman Sachs & Co. and has been approved by Goldman Sachs International, a member of The Securities and Futures Authority, in connection with distribution in the United Kingdom, and by Goldman Sachs Canada in connection with distribution in Canada. Additional information on any of the securities, futures or options mentioned in this material may be obtained upon request. For this purpose, persons in Italy should contact Goldman Sachs S.I.M. S.P.A. in Milan, or at its London branch office at 133 Fleet Street. Goldman Sachs International may have acted upon or used this research prior to, or immediately following its publication.

CMO GSR 0521 1P1 Scenario Report (Intex)											Goldman Sachs
Generated: 01/11/2005 11:11:05 Page 1 of 1

CUSIP			Monthly		As Of		1/05 Pricing			1/10/05 Original 148,000,000.00
Description:	Accretion Directed,Senior,Pac							Settle		1/31/05 Balance 148,000,000.00
Coupon:	4.250%							Next Proj		2/25/05 Factor 1.00000000
Collateral:	Cpn		6.00	WAC 6.53	WAM 311	WALA	17	Stated Final		0/0/00 Delay 24
Historical CPR’s:			1/05=	12/04=	11/04= 3mo= 6mo=			12mo=	SI=
Curve: 3m=		6m=	1yr= 2yr= 3yr= 4yr= 5yr= 7yr= 10yr=				30yr=

			Input	Output	CPR	CPR		CPR	CPR	CPR	CPR
		PREPAY			6	12		18	24	30	36
				Av Life	4.542	2.974		2.848	2.848	3.042	2.614
			Price	Window	2/05-7/14	2/05-5/12	2/05-5/12		2/05-5/12	2/05-11/15	2/05-7/34
			99-00	Yield	4.468	4.553		4.564	4.564	4.550	4.589
			99-00+	Yield	4.464	4.547		4.558	4.558	4.544	4.582

			99-01	Yield	4.460	4.541		4.552	4.552	4.538	4.575
			99-01+	Yield	4.456	4.535		4.545	4.545	4.532	4.568
			99-02	Yield	4.452	4.529		4.539	4.539	4.526	4.562
			99-02+	Yield	4.448	4.523		4.533	4.533	4.520	4.555
			99-03	Yield	4.444	4.517		4.527	4.527	4.515	4.548

			99-03+	Yield	4.440	4.512		4.521	4.521	4.509	4.542
			99-04	Yield	4.436	4.506		4.515	4.515	4.503	4.535
			99-04+	Yield	4.432	4.500		4.509	4.509	4.497	4.528
			99-05	Yield	4.428	4.494		4.502	4.502	4.491	4.522
			99-05+	Yield	4.424	4.488		4.496	4.496	4.485	4.515

			99-06	Yield	4.420	4.482		4.490	4.490	4.480	4.508





This material is for your private information, and we are not soliciting any action based upon it. Certain transactions, including those involving futures, options and high yield securities, give rise to substantial risk and are not suitable for all investors. Opinions expressed are our present opinions only. This material is based upon information that we consider reliable, but we do not represent it as accurate or complete. We or persons involved in the preparation or issuance of this material, may from time to time have positions or conduct transactions in the securities mentioned herein. This material has been issued by Goldman Sachs & Co. and has been approved by Goldman Sachs International, a member of The Securities and Futures Authority, in connection with distribution in the United Kingdom, and by Goldman Sachs Canada in connection with distribution in Canada. Additional information on any of the securities, futures or options mentioned in this material may be obtained upon request. For this purpose, persons in Italy should contact Goldman Sachs S.I.M. S.P.A. in Milan, or at its London branch office at 133 Fleet Street. Goldman Sachs International may have acted upon or used this research prior to, or immediately following its publication.

Deal Summary Report

TRACK4

Assumptions

Collateral

Settlement

31-Jan-05

Prepay

600 PSA

WAC

WAM

Age

WAL

Dur

1st Pay Date

25-Feb-05

Default

0 CDR

7.075

309

2.19

Recovery

months

Severity

Tranche

Rating

Balance

Coupon

Principal

Avg

Dur

Yield

Spread

Bench

Price

$@1bp

Accrued

NetNet

Dated

Notes

Name

Window

Life

Int(M)

(MM)

Date

7,798,150.96

02/05 - 10/30

2.19

1-Jan-05

XRS_PO

4A1

57,599,000.00

2.75

02/05 - 10/30

1.98

25-Jan-05

FLT

4A2

57,599,000.00

5.25

02/05 - 10/30

1.98

25-Jan-05

INV_IO

4SUB

2,022,615.62

02/05 - 10/30

8.03

1-Jan-05

FIX

Yield Curve

Mat 6MO 2YR 3YR 5YR 10YR 30YR

Yld 2.66100 3.21900 3.37200 3.71300 4.24500 4.78200

Swaps

3MO 6MO 1YR 2YR 3YR 5YR 6YR 7YR 8YR 9YR 10YR 11YR 12YR 13YR 14YR 15YR 20YR 25YR

2.4600 2.6525 2.9487 3.2675 3.4968 3.8831 4.0455 4.1883 4.3135 4.4236 4.5217 4.6100 4.6905 4.7627 4.8273 4.8833 5.0586 5.1249

edsf

0.5YR 1.25YR

1.182 1.480


Payrules:
Pay 4A1 to zero

Floaters:
The following use 2.45 start LIBOR and 0 delay:
4A1: 7.5c + 30
4A2: 7.7 - LIBOR, 0.5 floor

4A2 notional with 100% of 4A1

PO is discount strip PO, so that the coupon of the remainder is 8%

TRACK4BBG - Stack Price/Yield
Settle	1/31/2005
First Payment	2/25/2005

	1	2	3	4	5
COLLAT
Price	100	100	100	100	100
Yield	7.12472	7.03477	6.91400	6.75406	6.51890
WAL	16.60	4.55	2.19	1.29	0.81
Mod Durn	8.912	3.387	1.849	1.155	0.744
Mod Convexity	1.278	0.237	0.076	0.032	0.014
Principal Window	Feb05 - Oct30	Feb05 - Oct30	Feb05 - Oct30	Feb05 - Oct30	Feb05 - Jul24
Price	100-00	100-00	100-00	100-00	100-00
PO
Price	80	80	80	80	80
Yield	1.37606	5.50276	11.70569	20.20783	33.26912
WAL	16.60	4.55	2.19	1.29	0.81
Mod Durn	15.827	3.622	1.668	0.949	0.562
Mod Convexity	3.075	0.270	0.062	0.022	0.008
Principal Window	Feb05 - Oct30	Feb05 - Oct30	Feb05 - Oct30	Feb05 - Jul29	Feb05 - May21
Price	80-00	80-00	80-00	80-00	80-00
4A1
Price	100	100	100	100	100
Yield	2.76520	2.76382	2.76169	2.75884	2.75475
WAL	16.60	4.36	1.98	1.15	0.71
Mod Durn	12.736	3.861	1.864	1.102	0.694
Mod Convexity	2.236	0.304	0.073	0.026	0.012
Principal Window	Feb05 - Oct30	Feb05 - Oct30	Feb05 - Oct30	Feb05 - Jun09	Feb05 - Sep07
Price	100-00	100-00	100-00	100-00	100-00
4A2
Price	10	10	10	10	10
Yield	56.43675	31.91065	2.12315	-38.19303	-88.34362
WAL	16.60	4.36	1.98	1.15	0.71
Mod Durn	1.530	1.663	1.754	1.713	1.907
Mod Convexity	0.052	0.061	0.066	0.056	0.068
Principal Window	NA - NA	NA - NA	NA - NA	NA - NA	NA - NA
Price	10-00	10-00	10-00	10-00	10-00
4SUB
Price	100	100	100	100	100
Yield	8.06788	8.04690	8.03478	8.00193	7.93903
WAL	16.60	9.99	8.03	5.40	3.38
Mod Durn	8.323	6.328	5.558	4.180	2.835
Mod Convexity	1.144	0.602	0.437	0.232	0.106
Principal Window	Feb05 - Oct30	Feb05 - Oct30	Feb05 - Oct30	Feb05 - Oct30	Feb05 - Jun24
Price	100-00	100-00	100-00	100-00	100-00
LIBOR_1MO	2.45	2.45	2.45	2.45	2.45
Prepay	0 PSA	300 PSA	600 PSA	900 PSA	1200 PSA

TRACK4BBG - Dec - PO


Date	1	2	3	4	5
31-Jan-05	100	100	100	100	100
25-Jan-06	99	81	63	45	28
25-Jan-07	97	65	40	21	8
25-Jan-08	95	53	25	9	2
25-Jan-09	94	42	16	4	1
25-Jan-10	92	34	10	2	*
25-Jan-11	90	27	6	1	*
25-Jan-12	88	22	4	*	*
25-Jan-13	85	17	2	*	*
25-Jan-14	83	14	1	*	*
25-Jan-15	80	11	1	*	*
25-Jan-16	77	9	1	*	*
25-Jan-17	74	7	*	*	*
25-Jan-18	71	5	*	*	*
25-Jan-19	67	4	*	*	*
25-Jan-20	63	3	*	*	*
25-Jan-21	59	2	*	*	0
25-Jan-22	55	2	*	*	0
25-Jan-23	50	1	*	*	0
25-Jan-24	45	1	*	*	0
25-Jan-25	40	1	*	*	0
25-Jan-26	34	1	*	*	0
25-Jan-27	28	*	*	*	0
25-Jan-28	21	*	*	*	0
25-Jan-29	14	*	*	0	0
25-Jan-30	6	*	*	0	0
25-Jan-31	0	0	0	0	0

WAL	16.6	4.55	2.19	1.29	0.81
Principal Window	Feb05-Oct30	Feb05-Oct30	Feb05-Oct30	Feb05-Jul29	Feb05-May21

LIBOR_1MO	2.45	2.45	2.45	2.45	2.45
Prepay	0 PSA	300 PSA	600 PSA	900 PSA	1200 PSA

TRACK4BBG - Dec - 4A1


Date	1	2	3	4	5
31-Jan-05	100	100	100	100	100
25-Jan-06	99	80	62	43	25
25-Jan-07	97	64	38	18	4
25-Jan-08	95	51	23	6	0
25-Jan-09	94	41	13	1	0
25-Jan-10	92	32	7	0	0
25-Jan-11	90	25	4	0	0
25-Jan-12	88	20	2	0	0
25-Jan-13	85	16	1	0	0
25-Jan-14	83	12	*	0	0
25-Jan-15	80	10	*	0	0
25-Jan-16	77	8	*	0	0
25-Jan-17	74	6	*	0	0
25-Jan-18	71	5	*	0	0
25-Jan-19	67	4	*	0	0
25-Jan-20	63	3	*	0	0
25-Jan-21	59	2	*	0	0
25-Jan-22	55	2	*	0	0
25-Jan-23	50	1	*	0	0
25-Jan-24	45	1	*	0	0
25-Jan-25	40	1	*	0	0
25-Jan-26	34	*	*	0	0
25-Jan-27	28	*	*	0	0
25-Jan-28	21	*	*	0	0
25-Jan-29	14	*	*	0	0
25-Jan-30	6	*	*	0	0
25-Jan-31	0	0	0	0	0

WAL	16.6	4.36	1.98	1.15	0.71
Principal Window	Feb05-Oct30	Feb05-Oct30	Feb05-Oct30	Feb05-Jun09	Feb05-Sep07

LIBOR_1MO	2.45	2.45	2.45	2.45	2.45
Prepay	0 PSA	300 PSA	600 PSA	900 PSA	1200 PSA

TRACK4BBG - Dec - 4A2


Date	1	2	3	4	5
31-Jan-05	100	100	100	100	100
25-Jan-06	99	80	62	43	25
25-Jan-07	97	64	38	18	4
25-Jan-08	95	51	23	6	0
25-Jan-09	94	41	13	1	0
25-Jan-10	92	32	7	0	0
25-Jan-11	90	25	4	0	0
25-Jan-12	88	20	2	0	0
25-Jan-13	85	16	1	0	0
25-Jan-14	83	12	*	0	0
25-Jan-15	80	10	*	0	0
25-Jan-16	77	8	*	0	0
25-Jan-17	74	6	*	0	0
25-Jan-18	71	5	*	0	0
25-Jan-19	67	4	*	0	0
25-Jan-20	63	3	*	0	0
25-Jan-21	59	2	*	0	0
25-Jan-22	55	2	*	0	0
25-Jan-23	50	1	*	0	0
25-Jan-24	45	1	*	0	0
25-Jan-25	40	1	*	0	0
25-Jan-26	34	*	*	0	0
25-Jan-27	28	*	*	0	0
25-Jan-28	21	*	*	0	0
25-Jan-29	14	*	*	0	0
25-Jan-30	6	*	*	0	0
25-Jan-31	0	0	0	0	0

WAL	16.6	4.36	1.98	1.15	0.71
Principal Window

LIBOR_1MO	2.45	2.45	2.45	2.45	2.45
Prepay	0 PSA	300 PSA	600 PSA	900 PSA	1200 PSA

TRACK4BBG - Dec - 4SUB


Date	1	2	3	4	5
31-Jan-05	100	100	100	100	100
25-Jan-06	99	99	99	99	99
25-Jan-07	97	97	97	97	97
25-Jan-08	95	95	95	95	62
25-Jan-09	94	94	94	94	17
25-Jan-10	92	92	92	56	5
25-Jan-11	90	85	79	25	1
25-Jan-12	88	76	64	11	*
25-Jan-13	85	66	48	5	*
25-Jan-14	83	55	33	2	*
25-Jan-15	80	43	20	1	*
25-Jan-16	77	34	12	*	*
25-Jan-17	74	27	8	*	*
25-Jan-18	71	21	5	*	*
25-Jan-19	67	16	3	*	*
25-Jan-20	63	13	2	*	*
25-Jan-21	59	10	1	*	*
25-Jan-22	55	7	1	*	*
25-Jan-23	50	6	*	*	0
25-Jan-24	45	4	*	*	0
25-Jan-25	40	3	*	*	0
25-Jan-26	34	2	*	*	0
25-Jan-27	28	1	*	*	0
25-Jan-28	21	1	*	*	0
25-Jan-29	14	*	*	*	0
25-Jan-30	6	*	*	*	0
25-Jan-31	0	0	0	0	0

WAL	16.6	9.99	8.03	5.4	3.38
Principal Window	Feb05-Oct30	Feb05-Oct30	Feb05-Oct30	Feb05-Oct30	Feb05-Jun24

LIBOR_1MO	2.45	2.45	2.45	2.45	2.45
Prepay	0 PSA	300 PSA	600 PSA	900 PSA	1200 PSA

TRACK4BBG - Dec - DEAL_PLUGIN


Date	1	2	3	4	5
31-Jan-05	100	100	100	100	100
25-Jan-06	99	81	63	45	28
25-Jan-07	97	65	40	21	8
25-Jan-08	95	53	25	9	2
25-Jan-09	94	42	16	4	1
25-Jan-10	92	34	10	2	*
25-Jan-11	90	27	6	1	*
25-Jan-12	88	22	4	*	*
25-Jan-13	85	17	2	*	*
25-Jan-14	83	14	1	*	*
25-Jan-15	80	11	1	*	*
25-Jan-16	77	9	1	*	*
25-Jan-17	74	7	*	*	*
25-Jan-18	71	5	*	*	*
25-Jan-19	67	4	*	*	*
25-Jan-20	63	3	*	*	*
25-Jan-21	59	2	*	*	*
25-Jan-22	55	2	*	*	*
25-Jan-23	50	1	*	*	0
25-Jan-24	45	1	*	*	0
25-Jan-25	40	1	*	*	0
25-Jan-26	34	1	*	*	0
25-Jan-27	28	*	*	*	0
25-Jan-28	21	*	*	*	0
25-Jan-29	14	*	*	*	0
25-Jan-30	6	*	*	*	0
25-Jan-31	0	0	0	0	0

WAL	16.6	4.55	2.19	1.29	0.81
Principal Window	Feb05-Oct30	Feb05-Oct30	Feb05-Oct30	Feb05-Oct30	Feb05-Jun24

LIBOR_1MO	2.45	2.45	2.45	2.45	2.45
Prepay	0 PSA	300 PSA	600 PSA	900 PSA	1200 PSA

******************************

TRACK4BBG - Dec - #NETRATE


Date	1	2	3	4	5
31-Jan-05	0	0	0	0	0
25-Jan-06	0	0	0	0	0
25-Jan-07	0	0	0	0	0
25-Jan-08	0	0	0	0	0
25-Jan-09	0	0	0	0	0
25-Jan-10	0	0	0	0	0
25-Jan-11	0	0	0	0	0
25-Jan-12	0	0	0	0	0
25-Jan-13	0	0	0	0	0
25-Jan-14	0	0	0	0	0
25-Jan-15	0	0	0	0	0
25-Jan-16	0	0	0	0	0
25-Jan-17	0	0	0	0	0
25-Jan-18	0	0	0	0	0
25-Jan-19	0	0	0	0	0
25-Jan-20	0	0	0	0	0
25-Jan-21	0	0	0	0	0
25-Jan-22	0	0	0	0	0
25-Jan-23	0	0	0	0	0
25-Jan-24	0	0	0	0	0
25-Jan-25	0	0	0	0	0
25-Jan-26	0	0	0	0	0
25-Jan-27	0	0	0	0	0
25-Jan-28	0	0	0	0	0
25-Jan-29	0	0	0	0	0
25-Jan-30	0	0	0	0	0
25-Jan-31	0	0	0	0	0

WAL	NA	NA	NA	NA	NA
Principal Window

LIBOR_1MO	2.45	2.45	2.45	2.45	2.45
Prepay	0 PSA	300 PSA	600 PSA	900 PSA	1200 PSA

TRACK4BBG - Dec - #RESIDCASH


Date	1	2	3	4	5
31-Jan-05	0	0	0	0	0
25-Jan-06	0	0	0	0	0
25-Jan-07	0	0	0	0	0
25-Jan-08	0	0	0	0	0
25-Jan-09	0	0	0	0	0
25-Jan-10	0	0	0	0	0
25-Jan-11	0	0	0	0	0
25-Jan-12	0	0	0	0	0
25-Jan-13	0	0	0	0	0
25-Jan-14	0	0	0	0	0
25-Jan-15	0	0	0	0	0
25-Jan-16	0	0	0	0	0
25-Jan-17	0	0	0	0	0
25-Jan-18	0	0	0	0	0
25-Jan-19	0	0	0	0	0
25-Jan-20	0	0	0	0	0
25-Jan-21	0	0	0	0	0
25-Jan-22	0	0	0	0	0
25-Jan-23	0	0	0	0	0
25-Jan-24	0	0	0	0	0
25-Jan-25	0	0	0	0	0
25-Jan-26	0	0	0	0	0
25-Jan-27	0	0	0	0	0
25-Jan-28	0	0	0	0	0
25-Jan-29	0	0	0	0	0
25-Jan-30	0	0	0	0	0
25-Jan-31	0	0	0	0	0

WAL	NA	NA	NA	NA	NA
Principal Window

LIBOR_1MO	2.45	2.45	2.45	2.45	2.45
Prepay	0 PSA	300 PSA	600 PSA	900 PSA	1200 PSA

TRACK4BBG - Dec - Class-4A


Date	1	2	3	4	5
31-Jan-05	100	100	100	100	100
25-Jan-06	99	80	62	43	25
25-Jan-07	97	64	38	18	4
25-Jan-08	95	51	23	6	0
25-Jan-09	94	41	13	1	0
25-Jan-10	92	32	7	0	0
25-Jan-11	90	25	4	0	0
25-Jan-12	88	20	2	0	0
25-Jan-13	85	16	1	0	0
25-Jan-14	83	12	*	0	0
25-Jan-15	80	10	*	0	0
25-Jan-16	77	8	*	0	0
25-Jan-17	74	6	*	0	0
25-Jan-18	71	5	*	0	0
25-Jan-19	67	4	*	0	0
25-Jan-20	63	3	*	0	0
25-Jan-21	59	2	*	0	0
25-Jan-22	55	2	*	0	0
25-Jan-23	50	1	*	0	0
25-Jan-24	45	1	*	0	0
25-Jan-25	40	1	*	0	0
25-Jan-26	34	*	*	0	0
25-Jan-27	28	*	*	0	0
25-Jan-28	21	*	*	0	0
25-Jan-29	14	*	*	0	0
25-Jan-30	6	*	*	0	0
25-Jan-31	0	0	0	0	0

WAL	16.6	4.36	1.98	1.15	0.71
Principal Window	Feb05-Oct30	Feb05-Oct30	Feb05-Oct30	Feb05-Jun09	Feb05-Sep07

LIBOR_1MO	2.45	2.45	2.45	2.45	2.45
Prepay	0 PSA	300 PSA	600 PSA	900 PSA	1200 PSA

TRACK4BBG - Dec - COLLAT


Date	1	2	3	4	5
31-Jan-05	100	100	100	100	100
25-Jan-06	99	81	63	45	28
25-Jan-07	97	65	40	21	8
25-Jan-08	95	53	25	9	2
25-Jan-09	94	42	16	4	1
25-Jan-10	92	34	10	2	*
25-Jan-11	90	27	6	1	*
25-Jan-12	88	22	4	*	*
25-Jan-13	85	17	2	*	*
25-Jan-14	83	14	1	*	*
25-Jan-15	80	11	1	*	*
25-Jan-16	77	9	1	*	*
25-Jan-17	74	7	*	*	*
25-Jan-18	71	5	*	*	*
25-Jan-19	67	4	*	*	*
25-Jan-20	63	3	*	*	*
25-Jan-21	59	2	*	*	*
25-Jan-22	55	2	*	*	*
25-Jan-23	50	1	*	*	0
25-Jan-24	45	1	*	*	0
25-Jan-25	40	1	*	*	0
25-Jan-26	34	1	*	*	0
25-Jan-27	28	*	*	*	0
25-Jan-28	21	*	*	*	0
25-Jan-29	14	*	*	*	0
25-Jan-30	6	*	*	*	0
25-Jan-31	0	0	0	0	0

WAL	16.6	4.55	2.19	1.29	0.81
Principal Window	Feb05-Oct30	Feb05-Oct30	Feb05-Oct30	Feb05-Oct30	Feb05-Jul24

LIBOR_1MO	2.45	2.45	2.45	2.45	2.45
Prepay	0 PSA	300 PSA	600 PSA	900 PSA	1200 PSA

TRACK4BBG - Dec - COLLAT_PREM


Date	1	2	3	4	5
31-Jan-05	0	0	0	0	0

WAL	0	0	0	0	0
Principal Window

LIBOR_1MO	2.45	2.45	2.45	2.45	2.45
Prepay	0 PSA	300 PSA	600 PSA	900 PSA	1200 PSA

TRACK4BBG - Dec - COLLAT_DISC


Date	1	2	3	4	5
31-Jan-05	100	100	100	100	100
25-Jan-06	99	81	63	45	28
25-Jan-07	97	65	40	21	8
25-Jan-08	95	53	25	9	2
25-Jan-09	94	42	16	4	1
25-Jan-10	92	34	10	2	*
25-Jan-11	90	27	6	1	*
25-Jan-12	88	22	4	*	*
25-Jan-13	85	17	2	*	*
25-Jan-14	83	14	1	*	*
25-Jan-15	80	11	1	*	*
25-Jan-16	77	9	1	*	*
25-Jan-17	74	7	*	*	*
25-Jan-18	71	5	*	*	*
25-Jan-19	67	4	*	*	*
25-Jan-20	63	3	*	*	*
25-Jan-21	59	2	*	*	*
25-Jan-22	55	2	*	*	*
25-Jan-23	50	1	*	*	0
25-Jan-24	45	1	*	*	0
25-Jan-25	40	1	*	*	0
25-Jan-26	34	1	*	*	0
25-Jan-27	28	*	*	*	0
25-Jan-28	21	*	*	*	0
25-Jan-29	14	*	*	*	0
25-Jan-30	6	*	*	*	0
25-Jan-31	0	0	0	0	0

WAL	16.6	4.55	2.19	1.29	0.81
Principal Window	Feb05-Oct30	Feb05-Oct30	Feb05-Oct30	Feb05-Oct30	Feb05-Jul24

LIBOR_1MO	2.45	2.45	2.45	2.45	2.45
Prepay	0 PSA	300 PSA	600 PSA	900 PSA	1200 PSA

VERSION: 3.01 (BLOOMBERG CMO BOND FILE)

--------------------------------------------------

$ DEAL: TRACK4

$ PRICING: 600 PSA

$ SETTLEMENT: 20050131

------------------------------------------

$ BLOCK: 1

!{ TRANCHE NAME: PO }

$ ORIGINAL_AMOUNT: 7798150.96

$ CURRENT_FACTOR: 1.000000000

$ CURRENT_COUPON: 0

$ PRINCIPAL_FREQ: 12

$ PAYMENT_DELAY: 24

$ DATED_DATE: 20050101

$ FIRST_PAYMENT_DATE: 20050225

$ NEXT_PAYMENT_DATE: 20050225

$ ACCRUAL_METHOD: THIRTY_360

--------------------------------------------------

$ BLOCK: 2

!{ TRANCHE NAME: 4A1 }

$ ORIGINAL_AMOUNT: 57599000.00

$ CURRENT_FACTOR: 1.000000000

$ CURRENT_COUPON: 2.75 Floater Bond

$ PRINCIPAL_FREQ: 12

$ PAYMENT_DELAY: 0

$ DATED_DATE: 20050125

$ FIRST_PAYMENT_DATE: 20050225

$ NEXT_PAYMENT_DATE: 20050225

$ ACCRUAL_METHOD: THIRTY_360

Additional Floater Information

$ FLOATER_INDEX: LIBOR1MO

$ FLOATER_RESET: Freq: 12; Next: 20050225

$ FLOATER_FORMULA: 0.00000 1.0 0.3

$ FLOATER_LIMITS:Thres: 20050125 Floor: 0.3 Cap: 7.5

--------------------------------------------------

$ BLOCK: 3

!{ TRANCHE NAME: 4SUB }

$ ORIGINAL_AMOUNT: 2022615.62

$ CURRENT_FACTOR: 1.000000000

$ CURRENT_COUPON: 8

$ PRINCIPAL_FREQ: 12

$ PAYMENT_DELAY: 24

$ DATED_DATE: 20050101

$ FIRST_PAYMENT_DATE: 20050225

$ NEXT_PAYMENT_DATE: 20050225

$ ACCRUAL_METHOD: THIRTY_360

--------------------------------------------------

$ PHANTOM: 4

!{ TRANCHE NAME: 4A2 }

$ ORIGINAL_AMOUNT: 57599000.00

$ CURRENT_FACTOR: 1.000000000

$ CURRENT_COUPON: 5.25 Floater Bond

$ PRINCIPAL_FREQ: 12

$ PAYMENT_DELAY: 0

$ DATED_DATE: 20050125

$ FIRST_PAYMENT_DATE: 20050225

$ NEXT_PAYMENT_DATE: 20050225

$ ACCRUAL_METHOD: THIRTY_360

Additional Floater Information

$ FLOATER_INDEX: LIBOR1MO

$ FLOATER_RESET: Freq: 12; Next: 20050225

$ FLOATER_FORMULA: 0.00000 -1 7.7

$ FLOATER_LIMITS:Thres: 20050125 Floor: 0.5 Cap: 7.7

--------------------------------------------------

$ TRANCHE: 1

$ NAME: "PO"

$ CSORT: 1

$ TYPE:

$ RECORD_DELAY: 24

$ COMPOSITION: BLOCK: 1 PRIN: 100.000000000 INT: 100.000000000

--------------------------------------------------

$ TRANCHE: 2

$ NAME: "4A1"

$ CSORT: 2

$ TYPE: FLT

$ RECORD_DELAY: 0

$ COMPOSITION: BLOCK: 2 PRIN: 100.000000000 INT: 100.000000000

--------------------------------------------------

$ TRANCHE: 3

$ NAME: "4A2"

$ CSORT: 3

$ TYPE: FLT,NTL

$ RECORD_DELAY: 0

$ NOTIONAL:

$ COMPOSITION: BLOCK: 4 PRIN: 100.000000000 INT: 100.000000000

! ( notional tranche name is 4A2 )

--------------------------------------------------

$ TRANCHE: 4

$ NAME: "4SUB"

$ CSORT: 4

$ TYPE: SUB

$ RECORD_DELAY: 24

$ COMPOSITION: BLOCK: 3 PRIN: 100.000000000 INT: 100.000000000

--------------------------------------------------

$ END_TRANCHES:

--------------------------------------------------

END OF BOND FILE

***************************************************

$ VERSION: 3.03 (BLOOMBERG CMO COLLATERAL FILE)

---------------------------------------------------

$ AGENCY_LIST: Type Factor Date P/Y Delay BV Delay

WHOLE 20050101 55 54

---------------------------------------------------

$ ASSUMED_POOLS:

--------------------------------------------------------------------------------

!G Pool Number Pool Type NET-CPN CURR--FACT ORIG--BALANCE PY-FEE BV-FEE PY/BV/BLN-W AGE

--------------------------------------------------------------------------------

M 1 WHOLE XX/XX 7.074674819 1.00000000 67419766.58 0.000000000 0.000000000 309 309 309 41

CMO GSR 0514ARB 4A1

Goldman

Sachs

Scenario Report (Intex)

Generated: 01/18/2005 13:53:18 Page 1 of 1

CUSIP Monthly As Of 1/05 Pricing 1/14/05 Original 50,000,000.00

Description: Floater,Senior Settle 2/3/05 Balance 50,000,000.00

Coupon: 2.750% = 0.3 + 01mlib, cap=7.5, asof=1/05 Next Proj 2/25/05 Factor 1.00000000

Collateral: Cpn 8.00 WAC 7.07 WAM 309 WALA 41 Stated Final 0/0/00 Delay 0

Historical CPR’s: 1/05= 12/04= 11/04= 3mo= 6mo= 12mo= SI=

Curve: 3m= 6m= 1yr= 2yr= 3yr= 4yr= 5yr= 7yr= 10yr= 30yr=

Input	Output	PSA	PSA	PSA	PSA	PSA	PSA
PREPAY		600	100	200	300	400	500
01MLIB	2.480	+0	+0	+0	+0	+0	+0
	Av Life	2.040	9.745	6.300	4.418	3.289	2.553
Price	Window	2/05-9/34	2/05-9/34	2/05-9/34	2/05-9/34	2/05-9/34	2/05-9/34
100-00	DM	30.0	30.0	30.0	30.0	30.0	30.0

Deal Summary Report

GSR0514ARB

Assumptions

Collateral

Settlement

31-Jan-05

Prepay

600 PSA

Balance

WAC

WAM

Age

WAL

Dur

1st Pay Date

25-Feb-05

Default

0 CDR

$60,386,897.98

7.074

309

2.228

Recovery

months

Severity

Tranche

Balance

Coupon

Principal

Avg

Dur

Yield

Spread

Bench

Price

$@1bp

Accrued

NetNet

Dated

Notes

Name

Window

Life

Int(M)

(MM)

Date

4A1

58,575,000.00

2.75

02/05 - 09/34

2.048

Interp

26.85

25-Jan-05

FLT

4A2

58,575,000.00

5.25

02/05 - 09/34

2.048

Interp

51.25

25-Jan-05

INV_IO

SUBORD

1,811,897.98

02/05 - 09/34

8.056

Interp

12.08

1-Jan-05

FIX

Yield Curve

Mat 6MO 2YR 3YR 5YR 10YR 30YR

Yld 2.63900 3.18300 3.32900 3.67500 4.18700 4.71700

Swaps

3MO 6MO 1YR 2YR 3YR 5YR 6YR 7YR 8YR 9YR 10YR 11YR 12YR 13YR 14YR 15YR 20YR 25YR

2.4600 2.6525 2.9487 3.2675 3.4968 3.8831 4.0455 4.1883 4.3135 4.4236 4.5217 4.6100 4.6905 4.7627 4.8273 4.8833 5.0586 5.1249

edsf

0.5YR 1.25YR

1.182 1.480

GWAC	NWAC	BALANCE	rem amterm	age	rem ioterm	orig io term
6.6219556633	8	2,640,148.15	240	4	116	120
7.0215359156	8	55,359,557.94	309	41	-
8.7818337516	8	2,387,191.89	249	78	-




Floater Formula:
Libor + 30bps, 7.5 cap

Inverse IO Formula:
7.7 - Libor, 0.5 Floor

----------------------------------------------

$ VERSION: 3.01 (BLOOMBERG CMO BOND FILE)

--------------------------------------------------

$ DEAL: GSR0514ARB

$ PRICING: 600 PSA

$ SETTLEMENT: 20050131

------------------------------------------

$ BLOCK: 1

!{ TRANCHE NAME: 4A1 }

$ ORIGINAL_AMOUNT: 58575000.00

$ CURRENT_FACTOR: 1.000000000

$ CURRENT_COUPON: 2.75 Floater Bond

$ PRINCIPAL_FREQ: 12

$ PAYMENT_DELAY: 0

$ DATED_DATE: 20050125

$ FIRST_PAYMENT_DATE: 20050225

$ NEXT_PAYMENT_DATE: 20050225

$ ACCRUAL_METHOD: THIRTY_360

Additional Floater Information

$ FLOATER_INDEX: LIBOR1MO

$ FLOATER_RESET: Freq: 12; Next: 20050225

$ FLOATER_FORMULA: 0.00000 1.0 0.3

$ FLOATER_LIMITS:Thres: 20050125 Floor: 0.3 Cap: 7.5

--------------------------------------------------

$ BLOCK: 2

!{ TRANCHE NAME: SUBORD }

$ ORIGINAL_AMOUNT: 1811897.98

$ CURRENT_FACTOR: 1.000000000

$ CURRENT_COUPON: 8

$ PRINCIPAL_FREQ: 12

$ PAYMENT_DELAY: 24

$ DATED_DATE: 20050101

$ FIRST_PAYMENT_DATE: 20050225

$ NEXT_PAYMENT_DATE: 20050225

$ ACCRUAL_METHOD: THIRTY_360

--------------------------------------------------

$ PHANTOM: 3

!{ TRANCHE NAME: 4A2 }

$ ORIGINAL_AMOUNT: 58575000.00

$ CURRENT_FACTOR: 1.000000000

$ CURRENT_COUPON: 5.25 Floater Bond

$ PRINCIPAL_FREQ: 12

$ PAYMENT_DELAY: 0

$ DATED_DATE: 20050125

$ FIRST_PAYMENT_DATE: 20050225

$ NEXT_PAYMENT_DATE: 20050225

$ ACCRUAL_METHOD: THIRTY_360

Additional Floater Information

$ FLOATER_INDEX: LIBOR1MO

$ FLOATER_RESET: Freq: 12; Next: 20050225

$ FLOATER_FORMULA: 0.00000 -1 7.7

$ FLOATER_LIMITS:Thres: 20050125 Floor: 0.5 Cap: 7.7

--------------------------------------------------

$ TRANCHE: 1

$ NAME: "4A1"

$ CSORT: 1

$ TYPE: FLT

$ RECORD_DELAY: 0

$ COMPOSITION: BLOCK: 1 PRIN: 100.000000000 INT: 100.000000000

--------------------------------------------------

$ TRANCHE: 2

$ NAME: "4A2"

$ CSORT: 2

$ TYPE: FLT,NTL

$ RECORD_DELAY: 0

$ NOTIONAL:

$ COMPOSITION: BLOCK: 3 PRIN: 100.000000000 INT: 100.000000000

! ( notional tranche name is 4A2 )

--------------------------------------------------

$ TRANCHE: 3

$ NAME: "SUBORD"

$ CSORT: 3

$ TYPE: SUB

$ RECORD_DELAY: 24

$ COMPOSITION: BLOCK: 2 PRIN: 100.000000000 INT: 100.000000000

--------------------------------------------------

$ END_TRANCHES:

--------------------------------------------------

END OF BOND FILE

***************************************************

$ VERSION: 3.03 (BLOOMBERG CMO COLLATERAL FILE)

---------------------------------------------------

$ AGENCY_LIST: Type Factor Date P/Y Delay BV Delay

WHOLE 20050101 55 54

---------------------------------------------------

$ ASSUMED_POOLS:

--------------------------------------------------------------------------------

!G Pool Number Pool Type NET-CPN CURR--FACT ORIG--BALANCE PY-FEE BV-FEE PY/BV/BLN-W AGE

--------------------------------------------------------------------------------

M 1 WHOLE XX/XX 8.000000000 1.00000000 2640148.15 -1.378044337 -1.378044337 240 240 356 4

M 2 WHOLE XX/XX 8.000000000 1.00000000 55359557.94 -0.978464084 -0.978464084 309 309 309 41

M 3 WHOLE XX/XX 8.000000000 1.00000000 2387191.89 0.781833752 0.781833752 249 249 249 78

GSR05-2-4 - Summary

		Collateral
Balance	WAC	WAM	Age	WAL
$241,444,952.72	5.967	357	1	5.64

				Assumptions
Settlement	31-Jan-2005	Prepay		300 PSA
1st Pay Date	25-Feb-2005



Tranche	Balance	Coupon	Principal	Avg	Dated	Notes
Name			Window	Life	Date
4NAS	24,144,000.00	5.5	02/10 - 10/34	10.82	01-Jan-05	FIX
4G1	171,649,000.00	5.5	02/05 - 05/12	3.41	01-Jan-05	FIX
4G2	39,607,000.00	5.5	05/12 - 10/34	11.44	01-Jan-05	FIX
2SUB2	6,044,952.72	5.5	02/05 - 10/34	10.29	01-Jan-05	FIX

Pay Rules
1. Pay 4NAS its scheduled and prepay principal amounts
2. Pay 4G1 to zero
3. Pay 4G2 to zero
4. Pay 4NAS to zero

The NAS is locked out of all payments for 60 months.
Starting in month 61, the NAS receives: Priority Payment Fraction(Scheduled PrincipalPayments)+(NAS Shift Percentage)(Unscheduled Principal Payments)
The Priority Payment Fraction is defined as (Balance of 3NAS)/(Balance of (3NAS+3A1+3A2))
The NAS Schift Schedule is defined as follows:

Month <=	NAS Shift %
60	0
72	30
84	40
96	60
108	80
120	100

GSR05-2-4 - Dec - 4G1


Date	1	2	3	4	200 Pricing
31-Jan-05	100	100	100	100	100
25-Jan-06	98	95	92	89	86
25-Jan-07	96	86	75	65	55
25-Jan-08	95	73	53	36	20
25-Jan-09	92	61	35	14	0
25-Jan-10	90	50	21	0	0
25-Jan-11	88	42	10	0	0
25-Jan-12	86	34	2	0	0
25-Jan-13	84	27	0	0	0
25-Jan-14	81	21	0	0	0
25-Jan-15	79	16	0	0	0
25-Jan-16	76	12	0	0	0
25-Jan-17	73	8	0	0	0
25-Jan-18	70	4	0	0	0
25-Jan-19	66	1	0	0	0
25-Jan-20	63	0	0	0	0
25-Jan-21	59	0	0	0	0
25-Jan-22	55	0	0	0	0
25-Jan-23	51	0	0	0	0
25-Jan-24	46	0	0	0	0
25-Jan-25	42	0	0	0	0
25-Jan-26	37	0	0	0	0
25-Jan-27	31	0	0	0	0
25-Jan-28	26	0	0	0	0
25-Jan-29	20	0	0	0	0
25-Jan-30	13	0	0	0	0
25-Jan-31	6	0	0	0	0
25-Jan-32	0	0	0	0	0

WAL	16.76	5.81	3.41	2.57	2.14
Principal Window	Feb05-Dec31	Feb05-Apr19	Feb05-May12	Feb05-Jan10	Feb05-Dec08

Prepay	0 PSA	150 PSA	300 PSA	450 PSA	600 PSA


Disclaimer:

GSR05-2-4 - Dec - 4G2


Date	1	2	3	4	200 Pricing
31-Jan-05	100	100	100	100	100
25-Jan-06	100	100	100	100	100
25-Jan-07	100	100	100	100	100
25-Jan-08	100	100	100	100	100
25-Jan-09	100	100	100	100	91
25-Jan-10	100	100	100	96	30
25-Jan-11	100	100	100	56	2
25-Jan-12	100	100	100	30	0
25-Jan-13	100	100	83	17	0
25-Jan-14	100	100	65	10	0
25-Jan-15	100	100	52	7	0
25-Jan-16	100	100	41	5	0
25-Jan-17	100	100	33	4	0
25-Jan-18	100	100	26	2	0
25-Jan-19	100	100	21	2	0
25-Jan-20	100	90	16	1	0
25-Jan-21	100	78	13	1	0
25-Jan-22	100	68	10	1	0
25-Jan-23	100	58	8	*	0
25-Jan-24	100	50	6	*	0
25-Jan-25	100	42	5	*	0
25-Jan-26	100	35	3	*	0
25-Jan-27	100	29	3	*	0
25-Jan-28	100	24	2	*	0
25-Jan-29	100	19	1	*	0
25-Jan-30	100	15	1	*	0
25-Jan-31	100	11	1	*	0
25-Jan-32	96	7	*	*	0
25-Jan-33	63	4	*	*	0
25-Jan-34	28	2	*	*	0
25-Jan-35	0	0	0	0	0

WAL	28.38	19.86	11.44	6.83	4.75
Principal Window	Dec31-Oct34	Apr19-Oct34	May12-Oct34	Jan10-Oct34	Dec08-Mar11

Prepay	0 PSA	150 PSA	300 PSA	450 PSA	600 PSA


Disclaimer:

GSR05-2-4 - Dec - 4NAS


Date	1	2	3	4	200 Pricing
31-Jan-05	100	100	100	100	100
25-Jan-06	100	100	100	100	100
25-Jan-07	100	100	100	100	100
25-Jan-08	100	100	100	100	100
25-Jan-09	100	100	100	100	100
25-Jan-10	100	100	100	100	100
25-Jan-11	98	95	92	89	85
25-Jan-12	96	90	83	76	51
25-Jan-13	94	83	72	61	30
25-Jan-14	92	75	60	46	18
25-Jan-15	90	67	48	33	11
25-Jan-16	87	59	38	23	7
25-Jan-17	85	52	30	16	4
25-Jan-18	82	46	24	12	3
25-Jan-19	79	40	19	8	2
25-Jan-20	76	35	15	6	1
25-Jan-21	73	31	12	4	1
25-Jan-22	69	27	9	3	*
25-Jan-23	65	23	7	2	*
25-Jan-24	61	20	5	1	*
25-Jan-25	57	17	4	1	*
25-Jan-26	53	14	3	1	*
25-Jan-27	48	12	2	*	*
25-Jan-28	43	9	2	*	*
25-Jan-29	38	7	1	*	*
25-Jan-30	32	6	1	*	*
25-Jan-31	26	4	1	*	*
25-Jan-32	20	3	*	*	*
25-Jan-33	13	2	*	*	*
25-Jan-34	6	1	*	*	*
25-Jan-35	0	0	0	0	0

WAL	20.34	13.69	10.82	9.33	7.64
Principal Window	Feb10-Oct34	Feb10-Oct34	Feb10-Oct34	Feb10-Oct34	Feb10-Oct34

Prepay	0 PSA	150 PSA	300 PSA	450 PSA	600 PSA


Disclaimer:

GSR05-2-4 - Dec - 2SUB2


Date	1	2	3	4	200 Pricing
31-Jan-05	100	100	100	100	100
25-Jan-06	99	99	99	99	99
25-Jan-07	97	97	97	97	97
25-Jan-08	96	96	96	96	96
25-Jan-09	94	94	94	94	94
25-Jan-10	93	93	93	93	93
25-Jan-11	91	89	86	83	80
25-Jan-12	89	84	78	72	66
25-Jan-13	87	77	68	58	49
25-Jan-14	85	70	56	44	34
25-Jan-15	83	62	45	32	21
25-Jan-16	81	55	36	22	13
25-Jan-17	79	49	29	16	8
25-Jan-18	76	43	23	11	5
25-Jan-19	73	38	18	8	3
25-Jan-20	70	33	14	6	2
25-Jan-21	67	29	11	4	1
25-Jan-22	64	25	9	3	1
25-Jan-23	61	21	7	2	*
25-Jan-24	57	18	5	1	*
25-Jan-25	53	15	4	1	*
25-Jan-26	49	13	3	1	*
25-Jan-27	45	11	2	*	*
25-Jan-28	40	9	2	*	*
25-Jan-29	35	7	1	*	*
25-Jan-30	30	5	1	*	*
25-Jan-31	24	4	1	*	*
25-Jan-32	18	3	*	*	*
25-Jan-33	12	2	*	*	*
25-Jan-34	5	1	*	*	*
25-Jan-35	0	0	0	0	0

WAL	19.08	12.92	10.29	8.94	8.14
Principal Window	Feb05-Oct34	Feb05-Oct34	Feb05-Oct34	Feb05-Oct34	Feb05-Oct34

Prepay	0 PSA	150 PSA	300 PSA	450 PSA	600 PSA


Disclaimer:

GSR05-2-4 - Dec - COLLAT


Date	1	2	3	4	200 Pricing
31-Jan-05	100	100	100	100	100
25-Jan-06	99	97	94	92	90
25-Jan-07	97	90	82	75	68
25-Jan-08	96	81	67	54	43
25-Jan-09	94	72	54	39	27
25-Jan-10	93	65	43	28	17
25-Jan-11	91	58	35	20	11
25-Jan-12	89	51	28	14	7
25-Jan-13	87	46	23	10	4
25-Jan-14	85	41	18	7	3
25-Jan-15	83	36	14	5	2
25-Jan-16	81	32	12	4	1
25-Jan-17	79	28	9	3	1
25-Jan-18	76	25	7	2	*
25-Jan-19	73	22	6	1	*
25-Jan-20	70	19	5	1	*
25-Jan-21	67	17	4	1	*
25-Jan-22	64	14	3	*	*
25-Jan-23	61	12	2	*	*
25-Jan-24	57	11	2	*	*
25-Jan-25	53	9	1	*	*
25-Jan-26	49	8	1	*	*
25-Jan-27	45	6	1	*	*
25-Jan-28	40	5	1	*	*
25-Jan-29	35	4	*	*	*
25-Jan-30	30	3	*	*	*
25-Jan-31	24	2	*	*	*
25-Jan-32	18	2	*	*	*
25-Jan-33	12	1	*	*	*
25-Jan-34	5	*	*	*	*
25-Jan-35	0	0	0	0	0

WAL	19.08	9.08	5.64	4.1	3.27
Principal Window	Feb05-Oct34	Feb05-Oct34	Feb05-Oct34	Feb05-Oct34	Feb05-Oct34

Prepay	0 PSA	150 PSA	300 PSA	450 PSA	600 PSA


Disclaimer:

--------------------------------------------------

$ VERSION: 3.01 (BLOOMBERG CMO BOND FILE)

--------------------------------------------------

$ DEAL: GSR05-2-4

$ PRICING: 300 PSA

$ SETTLEMENT: 20050131

------------------------------------------

$ BLOCK: 1

!{ TRANCHE NAME: 4NAS }

$ ORIGINAL_AMOUNT: 24144000.00

$ CURRENT_FACTOR: 1.000000000

$ CURRENT_COUPON: 5.5

$ PRINCIPAL_FREQ: 12

$ PAYMENT_DELAY: 24

$ DATED_DATE: 20050101

$ FIRST_PAYMENT_DATE: 20050225

$ NEXT_PAYMENT_DATE: 20050225

$ ACCRUAL_METHOD: THIRTY_360

--------------------------------------------------

$ BLOCK: 2

!{ TRANCHE NAME: 4G1 }

$ ORIGINAL_AMOUNT: 171649000.00

$ CURRENT_FACTOR: 1.000000000

$ CURRENT_COUPON: 5.5

$ PRINCIPAL_FREQ: 12

$ PAYMENT_DELAY: 24

$ DATED_DATE: 20050101

$ FIRST_PAYMENT_DATE: 20050225

$ NEXT_PAYMENT_DATE: 20050225

$ ACCRUAL_METHOD: THIRTY_360

--------------------------------------------------

$ BLOCK: 3

!{ TRANCHE NAME: 4G2 }

$ ORIGINAL_AMOUNT: 39607000.00

$ CURRENT_FACTOR: 1.000000000

$ CURRENT_COUPON: 5.5

$ PRINCIPAL_FREQ: 12

$ PAYMENT_DELAY: 24

$ DATED_DATE: 20050101

$ FIRST_PAYMENT_DATE: 20050225

$ NEXT_PAYMENT_DATE: 20050225

$ ACCRUAL_METHOD: THIRTY_360

--------------------------------------------------

$ BLOCK: 4

!{ TRANCHE NAME: 2SUB2 }

$ ORIGINAL_AMOUNT: 6044952.72

$ CURRENT_FACTOR: 1.000000000

$ CURRENT_COUPON: 5.5

$ PRINCIPAL_FREQ: 12

$ PAYMENT_DELAY: 24

$ DATED_DATE: 20050101

$ FIRST_PAYMENT_DATE: 20050225

$ NEXT_PAYMENT_DATE: 20050225

$ ACCRUAL_METHOD: THIRTY_360

--------------------------------------------------

$ TRANCHE: 1

$ NAME: "4NAS"

$ CSORT: 1

$ TYPE: NAS

$ RECORD_DELAY: 24

$ COMPOSITION: BLOCK: 1 PRIN: 100.000000000 INT: 100.000000000

--------------------------------------------------

$ TRANCHE: 2

$ NAME: "4G1"

$ CSORT: 2

$ TYPE:

$ RECORD_DELAY: 24

$ COMPOSITION: BLOCK: 2 PRIN: 100.000000000 INT: 100.000000000

--------------------------------------------------

$ TRANCHE: 3

$ NAME: "4G2"

$ CSORT: 3

$ TYPE:

$ RECORD_DELAY: 24

$ COMPOSITION: BLOCK: 3 PRIN: 100.000000000 INT: 100.000000000

--------------------------------------------------

$ TRANCHE: 4

$ NAME: "2SUB2"

$ CSORT: 4

$ TYPE: SUB

$ RECORD_DELAY: 24

$ COMPOSITION: BLOCK: 4 PRIN: 100.000000000 INT: 100.000000000

--------------------------------------------------

$ END_TRANCHES:

--------------------------------------------------

END OF BOND FILE

***************************************************

$ VERSION: 3.03 (BLOOMBERG CMO COLLATERAL FILE)

---------------------------------------------------

$ AGENCY_LIST: Type Factor Date P/Y Delay BV Delay

WHOLE 20050101 55 54

---------------------------------------------------

$ ASSUMED_POOLS:

--------------------------------------------------------------------------------

!G Pool Number Pool Type NET-CPN CURR--FACT ORIG--BALANCE PY-FEE BV-FEE PY/BV/BLN-W AGE

--------------------------------------------------------------------------------

M 1 WHOLE XX/XX 5.500000000 1.00000000 241444952.72 0.467000000 0.467000000 357 357 357 1

Deal Summary Report

TRACK1

Assumptions

Collateral

Settlement

31-Jan-05

Prepay

300 PSA

Balance

WAC

WAM

Age

WAL

Dur

1st Pay Date

25-Feb-05

Default

0 CDR

$222,697,787.96

5.87

355

5.59

4.393

Recovery

months

Severity

Tranche

Rating

Balance

Coupon

Principal

Avg

Dur

Yield

Spread

Bench

Price

$@1bp

Accrued

NetNet

Dated

Notes

Name

Window

Life

Int(M)

(MM)

Date

1A3

11,135,000.00

5.5

02/10 - 11/34

10.83

1-Jan-05

FIX

1A1

79,000,000.00

5.5

02/05 - 04/12

3.34

1-Jan-05

FIX

1A2

17,858,000.00

5.5

04/12 - 11/34

11.35

1-Jan-05

FIX

1A4

25,439,000.00

5.5

02/05 - 06/09

2.49

1-Jan-05

FIX

1A5

19,857,000.00

5.5

06/09 - 10/12

5.99

1-Jan-05

FIX

1A6

24,080,000.00

5.5

10/12 - 11/34

12.01

1-Jan-05

FIX

1A7

38,617,000.00

5.5

02/05 - 11/34

2.99

1-Jan-05

FIX

1SUB

6,711,787.96

5.5

02/05 - 11/34

10.35

1-Jan-05

FIX

Yield Curve

Mat 6MO 2YR 3YR 5YR 10YR 30YR

Yld 2.67500 3.24200 3.38900 3.71500 4.19500 4.68700

Swaps

3MO 6MO 1YR 2YR 3YR 5YR 6YR 7YR 8YR 9YR 10YR 11YR 12YR 13YR 14YR 15YR 20YR 25YR

2.4600 2.6525 2.9487 3.2675 3.4968 3.8831 4.0455 4.1883 4.3135 4.4236 4.5217 4.6100 4.6905 4.7627 4.8273 4.8833 5.0586 5.1249

edsf

0.5YR 1.25YR

1.182 1.480

Payrules for Group 1:

Pay pro rata:
50% as follows:
	Pay 1A3 to NAS schedule.
	Pay 1A1, 1A2 sequentially to zero.
	Pay 1A3 to zero.
50% as follows:
	1A4, 1A5, 1A6 sequentially to schedule
	1A7 to zero
	1A4, 1A5, 1A6 sequentially to zero


NAS schedule is defined as follows:
1. For months 0-60 the NAS is locked out of all payments.
2. Starting in month 61 the NAS receives Priority Payment Fraction(Scheduled Principal Payments) + Shift schedule (Unscheduled Principal Payments)
Priority Payment Fraction is defined as the balance of the NAS divided by the balance of (1A1+1A2+1A3)
NAS Shift Schedule is defined as follows:
Month <=						NAS Shift %
60						0
72						30
84						40
96						60
108						80
120						100

TRACK1 - Stack Price/Yield

Settle	1/31/2005
First Payment	2/25/2005

	1	2	3	4	5
COLLAT
Price	100	100	100	100	100
Yield	5.53	5.50	5.48	5.45	5.42
WAL	19.16	9.06	5.59	4.04	3.19
Mod Durn	10.929	6.296	4.355	3.354	2.754
Mod Convexity	1.867	0.704	0.339	0.197	0.129
Principal Window	Feb05 - Nov34	Feb05 - Nov34	Feb05 - Nov34	Feb05 - Nov34	Feb05 - Nov34
Price	100-00	100-00	100-00	100-00	100-00
1A3
Price	100	100	100	100	100
Yield	5.53	5.52	5.51	5.51	5.50
WAL	20.34	13.71	10.83	9.32	7.44
Mod Durn	11.538	8.992	7.725	6.971	5.895
Mod Convexity	1.993	1.174	0.825	0.648	0.444
Principal Window	Feb10 - Nov34	Feb10 - Nov34	Feb10 - Nov34	Feb10 - Nov34	Feb10 - Nov34
Price	100-00	100-00	100-00	100-00	100-00
1A1
Price	100	100	100	100	100
Yield	5.53	5.48	5.43	5.39	5.36
WAL	16.92	5.80	3.34	2.49	2.06
Mod Durn	10.142	4.597	2.909	2.241	1.880
Mod Convexity	1.598	0.341	0.128	0.075	0.053
Principal Window	Feb05 - Dec31	Feb05 - May19	Feb05 - Apr12	Feb05 - Dec09	Feb05 - Nov08
Price	100-00	100-00	100-00	100-00	100-00
1A2
Price	100	100	100	100	100
Yield	5.54	5.53	5.52	5.49	5.47
WAL	28.31	19.88	11.35	6.64	4.62
Mod Durn	14.025	11.666	8.042	5.362	3.976
Mod Convexity	2.972	1.930	0.878	0.369	0.193
Principal Window	Dec31 - Nov34	May19 - Nov34	Apr12 - Nov34	Dec09 - Nov34	Nov08 - Dec10
Price	100-00	100-00	100-00	100-00	100-00
1A4
Price	100	100	100	100	100
Yield	5.50	5.39	5.39	5.39	5.37
WAL	7.59	2.49	2.49	2.39	2.13
Mod Durn	5.801	2.242	2.242	2.165	1.952
Mod Convexity	0.501	0.074	0.074	0.068	0.054
Principal Window	Feb05 - Mar18	Feb05 - Jun09	Feb05 - Jun09	Feb05 - Oct08	Feb05 - Jan08
Price	100-00	100-00	100-00	100-00	100-00
1A5
Price	100	100	100	100	100
Yield	5.53	5.49	5.49	5.46	5.44
WAL	16.15	5.99	5.99	4.47	3.54
Mod Durn	10.422	4.961	4.961	3.860	3.135
Mod Convexity	1.456	0.303	0.303	0.181	0.121
Principal Window	Mar18 - Nov23	Jun09 - Oct12	Jun09 - Oct12	Oct08 - Jun10	Jan08 - Mar09
Price	100-00	100-00	100-00	100-00	100-00
1A6
Price	100	100	100	100	100
Yield	5.53	5.52	5.52	5.50	5.49
WAL	21.47	12.01	12.01	8.19	6.05
Mod Durn	12.292	8.388	8.388	6.312	4.960
Mod Convexity	2.139	0.954	0.954	0.527	0.318
Principal Window	Nov23 - Nov34	Oct12 - Nov34	Oct12 - Nov34	Jun10 - Nov34	Mar09 - Nov34
Price	100-00	100-00	100-00	100-00	100-00
1A7
Price	100	100	100	100	100
Yield	5.54	5.52	5.42	5.34	5.29
WAL	26.88	12.79	2.99	1.88	1.49
Mod Durn	13.704	8.132	2.637	1.726	1.392
Mod Convexity	2.803	1.129	0.107	0.045	0.030
Principal Window	Oct28 - Nov34	Feb05 - Nov34	Feb05 - Nov34	Feb05 - Apr08	Feb05 - Jul07
Price	100-00	100-00	100-00	100-00	100-00
1SUB
Price	100	100	100	100	100
Yield	5.53	5.52	5.51	5.51	5.50
WAL	19.16	13.00	10.35	8.99	8.17
Mod Durn	10.929	8.565	7.399	6.729	6.290
Mod Convexity	1.867	1.105	0.783	0.623	0.530
Principal Window	Feb05 - Nov34	Feb05 - Nov34	Feb05 - Nov34	Feb05 - Nov34	Feb05 - Nov34
Price	100-00	100-00	100-00	100-00	100-00
Prepay	0 PSA	150 PSA	300 PSA	450 PSA	600 PSA

TRACK1 - Dec - 1A1


Date	1	2	3	4	5
31-Jan-05	100	100	100	100	100
25-Jan-06	98	95	91	88	84
25-Jan-07	97	85	73	62	52
25-Jan-08	95	72	52	34	18
25-Jan-09	93	61	34	13	0
25-Jan-10	91	50	20	0	0
25-Jan-11	89	41	9	0	0
25-Jan-12	87	34	2	0	0
25-Jan-13	85	27	0	0	0
25-Jan-14	82	21	0	0	0
25-Jan-15	80	16	0	0	0
25-Jan-16	77	12	0	0	0
25-Jan-17	74	8	0	0	0
25-Jan-18	71	4	0	0	0
25-Jan-19	67	1	0	0	0
25-Jan-20	64	0	0	0	0
25-Jan-21	60	0	0	0	0
25-Jan-22	56	0	0	0	0
25-Jan-23	52	0	0	0	0
25-Jan-24	47	0	0	0	0
25-Jan-25	42	0	0	0	0
25-Jan-26	37	0	0	0	0
25-Jan-27	32	0	0	0	0
25-Jan-28	26	0	0	0	0
25-Jan-29	20	0	0	0	0
25-Jan-30	13	0	0	0	0
25-Jan-31	6	0	0	0	0
25-Jan-32	0	0	0	0	0

WAL	16.92	5.8	3.34	2.49	2.06
Principal Window	Feb05-Dec31	Feb05-May19	Feb05-Apr12	Feb05-Dec09	Feb05-Nov08

Prepay	0 PSA	150 PSA	300 PSA	450 PSA	600 PSA

TRACK1 - Dec - 1A2


Date	1	2	3	4	5
31-Jan-05	100	100	100	100	100
25-Jan-06	100	100	100	100	100
25-Jan-07	100	100	100	100	100
25-Jan-08	100	100	100	100	100
25-Jan-09	100	100	100	100	84
25-Jan-10	100	100	100	91	24
25-Jan-11	100	100	100	52	0
25-Jan-12	100	100	100	27	0
25-Jan-13	100	100	82	14	0
25-Jan-14	100	100	64	8	0
25-Jan-15	100	100	51	6	0
25-Jan-16	100	100	41	4	0
25-Jan-17	100	100	32	3	0
25-Jan-18	100	100	26	2	0
25-Jan-19	100	100	20	1	0
25-Jan-20	100	91	16	1	0
25-Jan-21	100	79	12	1	0
25-Jan-22	100	68	10	*	0
25-Jan-23	100	59	8	*	0
25-Jan-24	100	50	6	*	0
25-Jan-25	100	42	4	*	0
25-Jan-26	100	36	3	*	0
25-Jan-27	100	29	2	*	0
25-Jan-28	100	24	2	*	0
25-Jan-29	100	19	1	*	0
25-Jan-30	100	15	1	*	0
25-Jan-31	100	11	1	*	0
25-Jan-32	95	7	*	*	0
25-Jan-33	60	4	*	*	0
25-Jan-34	24	2	*	*	0
25-Jan-35	0	0	0	0	0

WAL	28.31	19.88	11.35	6.64	4.62
Principal Window	Dec31-Nov34	May19-Nov34	Apr12-Nov34	Dec09-Nov34	Nov08-Dec10

Prepay	0 PSA	150 PSA	300 PSA	450 PSA	600 PSA

TRACK1 - Dec - 1A3


Date	1	2	3	4	5
31-Jan-05	100	100	100	100	100
25-Jan-06	100	100	100	100	100
25-Jan-07	100	100	100	100	100
25-Jan-08	100	100	100	100	100
25-Jan-09	100	100	100	100	100
25-Jan-10	100	100	100	100	100
25-Jan-11	98	95	92	89	80
25-Jan-12	97	90	83	76	46
25-Jan-13	95	83	72	61	26
25-Jan-14	93	76	60	46	16
25-Jan-15	90	67	48	33	10
25-Jan-16	88	59	38	23	6
25-Jan-17	85	52	31	16	4
25-Jan-18	82	46	24	12	2
25-Jan-19	79	40	19	8	1
25-Jan-20	76	35	15	6	1
25-Jan-21	73	31	12	4	1
25-Jan-22	69	27	9	3	*
25-Jan-23	65	23	7	2	*
25-Jan-24	61	20	5	1	*
25-Jan-25	57	17	4	1	*
25-Jan-26	52	14	3	1	*
25-Jan-27	48	11	2	*	*
25-Jan-28	43	9	2	*	*
25-Jan-29	37	7	1	*	*
25-Jan-30	31	6	1	*	*
25-Jan-31	25	4	1	*	*
25-Jan-32	19	3	*	*	*
25-Jan-33	12	2	*	*	*
25-Jan-34	5	1	*	*	*
25-Jan-35	0	0	0	0	0

WAL	20.34	13.71	10.83	9.32	7.44
Principal Window	Feb10-Nov34	Feb10-Nov34	Feb10-Nov34	Feb10-Nov34	Feb10-Nov34

Prepay	0 PSA	150 PSA	300 PSA	450 PSA	600 PSA

TRACK1 - Dec - 1A4


Date	1	2	3	4	5
31-Jan-05	100	100	100	100	100
25-Jan-06	95	88	88	88	88
25-Jan-07	90	65	65	65	65
25-Jan-08	84	36	36	36	0
25-Jan-09	78	9	9	0	0
25-Jan-10	72	0	0	0	0
25-Jan-11	65	0	0	0	0
25-Jan-12	58	0	0	0	0
25-Jan-13	50	0	0	0	0
25-Jan-14	42	0	0	0	0
25-Jan-15	34	0	0	0	0
25-Jan-16	24	0	0	0	0
25-Jan-17	13	0	0	0	0
25-Jan-18	2	0	0	0	0
25-Jan-19	0	0	0	0	0

WAL	7.59	2.49	2.49	2.39	2.13
Principal Window	Feb05-Mar18	Feb05-Jun09	Feb05-Jun09	Feb05-Oct08	Feb05-Jan08

Prepay	0 PSA	150 PSA	300 PSA	450 PSA	600 PSA

TRACK1 - Dec - 1A5


Date	1	2	3	4	5
31-Jan-05	100	100	100	100	100
25-Jan-06	100	100	100	100	100
25-Jan-07	100	100	100	100	100
25-Jan-08	100	100	100	100	97
25-Jan-09	100	100	100	77	11
25-Jan-10	100	78	78	17	0
25-Jan-11	100	48	48	0	0
25-Jan-12	100	19	19	0	0
25-Jan-13	100	0	0	0	0
25-Jan-14	100	0	0	0	0
25-Jan-15	100	0	0	0	0
25-Jan-16	100	0	0	0	0
25-Jan-17	100	0	0	0	0
25-Jan-18	100	0	0	0	0
25-Jan-19	87	0	0	0	0
25-Jan-20	71	0	0	0	0
25-Jan-21	54	0	0	0	0
25-Jan-22	35	0	0	0	0
25-Jan-23	16	0	0	0	0
25-Jan-24	0	0	0	0	0

WAL	16.15	5.99	5.99	4.47	3.54
Principal Window	Mar18-Nov23	Jun09-Oct12	Jun09-Oct12	Oct08-Jun10	Jan08-Mar09

Prepay	0 PSA	150 PSA	300 PSA	450 PSA	600 PSA

TRACK1 - Dec - 1A6


Date	1	2	3	4	5
31-Jan-05	100	100	100	100	100
25-Jan-06	100	100	100	100	100
25-Jan-07	100	100	100	100	100
25-Jan-08	100	100	100	100	100
25-Jan-09	100	100	100	100	100
25-Jan-10	100	100	100	100	64
25-Jan-11	100	100	100	79	37
25-Jan-12	100	100	100	55	21
25-Jan-13	100	94	94	38	12
25-Jan-14	100	75	75	27	7
25-Jan-15	100	60	60	19	4
25-Jan-16	100	48	48	14	3
25-Jan-17	100	38	38	10	2
25-Jan-18	100	30	30	7	1
25-Jan-19	100	24	24	5	1
25-Jan-20	100	19	19	3	*
25-Jan-21	100	15	15	2	*
25-Jan-22	100	11	11	2	*
25-Jan-23	100	9	9	1	*
25-Jan-24	96	7	7	1	*
25-Jan-25	78	5	5	1	*
25-Jan-26	59	4	4	*	*
25-Jan-27	39	3	3	*	*
25-Jan-28	18	2	2	*	*
25-Jan-29	2	2	2	*	*
25-Jan-30	1	1	1	*	*
25-Jan-31	1	1	1	*	*
25-Jan-32	*	*	*	*	*
25-Jan-33	*	*	*	*	*
25-Jan-34	*	*	*	*	*
25-Jan-35	0	0	0	0	0

WAL	21.47	12.01	12.01	8.19	6.05
Principal Window	Nov23-Nov34	Oct12-Nov34	Oct12-Nov34	Jun10-Nov34	Mar09-Nov34

Prepay	0 PSA	150 PSA	300 PSA	450 PSA	600 PSA

TRACK1 - Dec - 1A7


Date	1	2	3	4	5
31-Jan-05	100	100	100	100	100
25-Jan-06	100	98	90	83	75
25-Jan-07	100	92	69	46	24
25-Jan-08	100	85	44	7	0
25-Jan-09	100	79	25	0	0
25-Jan-10	100	75	13	0	0
25-Jan-11	100	71	5	0	0
25-Jan-12	100	69	1	0	0
25-Jan-13	100	67	*	0	0
25-Jan-14	100	65	*	0	0
25-Jan-15	100	62	*	0	0
25-Jan-16	100	58	*	0	0
25-Jan-17	100	54	*	0	0
25-Jan-18	100	49	*	0	0
25-Jan-19	100	45	*	0	0
25-Jan-20	100	40	*	0	0
25-Jan-21	100	36	*	0	0
25-Jan-22	100	32	*	0	0
25-Jan-23	100	28	*	0	0
25-Jan-24	100	25	*	0	0
25-Jan-25	100	21	*	0	0
25-Jan-26	100	18	*	0	0
25-Jan-27	100	15	*	0	0
25-Jan-28	100	12	*	0	0
25-Jan-29	96	10	*	0	0
25-Jan-30	81	8	*	0	0
25-Jan-31	66	6	*	0	0
25-Jan-32	49	4	*	0	0
25-Jan-33	31	2	*	0	0
25-Jan-34	12	1	*	0	0
25-Jan-35	0	0	0	0	0

WAL	26.88	12.79	2.99	1.88	1.49
Principal Window	Oct28-Nov34	Feb05-Nov34	Feb05~Nov34	Feb05-Apr08	Feb05-Jul07

Prepay	0 PSA	150 PSA	300 PSA	450 PSA	600 PSA

TRACK1 - Dec - 1SUB


Date	1	2	3	4	5
31-Jan-05	100	100	100	100	100
25-Jan-06	99	99	99	99	99
25-Jan-07	98	98	98	98	98
25-Jan-08	96	96	96	96	96
25-Jan-09	95	95	95	95	95
25-Jan-10	93	93	93	93	93
25-Jan-11	92	89	86	84	80
25-Jan-12	90	84	78	72	66
25-Jan-13	88	78	68	59	50
25-Jan-14	86	71	57	45	34
25-Jan-15	84	63	46	32	21
25-Jan-16	82	56	36	23	13
25-Jan-17	80	49	29	16	8
25-Jan-18	77	43	23	11	5
25-Jan-19	74	38	18	8	3
25-Jan-20	71	33	14	6	2
25-Jan-21	68	29	11	4	1
25-Jan-22	65	25	9	3	1
25-Jan-23	61	21	7	2	*
25-Jan-24	57	18	5	1	*
25-Jan-25	53	15	4	1	*
25-Jan-26	49	13	3	1	*
25-Jan-27	44	11	2	*	*
25-Jan-28	40	9	2	*	*
25-Jan-29	35	7	1	*	*
25-Jan-30	29	5	1	*	*
25-Jan-31	24	4	1	*	*
25-Jan-32	18	3	*	*	*
25-Jan-33	11	2	*	*	*
25-Jan-34	4	1	*	*	*
25-Jan-35	0	0	0	0	0

WAL	19.16	13	10.35	8.99	8.17
Principal Window	Feb05-Nov34	Feb05-Nov34	Feb05-Nov34	Feb05-Nov34	Feb05-Nov34

Prepay	0 PSA	150 PSA	300 PSA	450 PSA	600 PSA

TRACK1 - Dec - COLLAT


Date	1	2	3	4	5
31-Jan-05	100	100	100	100	100
25-Jan-06	99	96	94	91	89
25-Jan-07	98	89	81	73	66
25-Jan-08	96	80	66	53	42
25-Jan-09	95	72	53	38	26
25-Jan-10	93	64	43	27	17
25-Jan-11	92	58	35	20	10
25-Jan-12	90	51	28	14	7
25-Jan-13	88	46	22	10	4
25-Jan-14	86	41	18	7	3
25-Jan-15	84	36	14	5	2
25-Jan-16	82	32	11	4	1
25-Jan-17	80	28	9	3	1
25-Jan-18	77	25	7	2	*
25-Jan-19	74	22	6	1	*
25-Jan-20	71	19	4	1	*
25-Jan-21	68	17	4	1	*
25-Jan-22	65	14	3	*	*
25-Jan-23	61	12	2	*	*
25-Jan-24	57	11	2	*	*
25-Jan-25	53	9	1	*	*
25-Jan-26	49	7	1	*	*
25-Jan-27	44	6	1	*	*
25-Jan-28	40	5	1	*	*
25-Jan-29	35	4	*	*	*
25-Jan-30	29	3	*	*	*
25-Jan-31	24	2	*	*	*
25-Jan-32	18	2	*	*	*
25-Jan-33	11	1	*	*	*
25-Jan-34	4	*	*	*	*
25-Jan-35	0	0	0	0	0

WAL	19.16	9.06	5.59	4.04	3.19
Principal Window	Feb05-Nov34	Feb05-Nov34	Feb05-Nov34	Feb05-Nov34	Feb05-Nov34

Prepay	0 PSA	150 PSA	300 PSA	450 PSA	600 PSA

Date	Balance
20050125	69376000
20050225	69214578
20050325	69034157
20050425	68834792
20050525	68616544
20050625	68379487
20050725	68123705
20050825	67849288
20050925	67556340
20051025	67244973
20051125	66915307
20051225	66567473
20060125	66201613
20060225	65817875
20060325	65416419
20060425	64997413
20060525	64561034
20060625	64107467
20060725	63636909
20060825	63149561
20060925	62645637
20061025	62125357
20061125	61588949
20061225	61036650
20070125	60468705
20070225	59885366
20070325	59286892
20070425	58673550
20070525	58047605
20070625	57424948
20070725	56805563
20070825	56189433
20070925	55576541
20071025	54966872
20071125	54360409
20071225	53757135
20080125	53157034
20080225	52560090
20080325	51966287
20080425	51375610
20080525	50788041
20080625	50203566
20080725	49622168
20080825	49043833
20080925	48468543
20081025	47896285
20081125	47327042
20081225	46760799
20090125	46197541
20090225	45637253
20090325	45079920
20090425	44525526
20090525	43974057
20090625	43425498
20090725	42879834
20090825	42337051
20090925	41797133
20091025	41260066
20091125	40725837
20091225	40194429
20100125	39665830
20100225	39144850
20100325	38626630
20100425	38111154
20100525	37598409
20100625	37088380
20100725	36581055
20100825	36076418
20100925	35574456
20101025	35075155
20101125	34578502
20101225	34084483
20110125	33593085
20110225	33105846
20110325	32621191
20110425	32139106
20110525	31659578
20110625	31182594
20110725	30708140
20110825	30236205
20110925	29766774
20111025	29299836
20111125	28835376
20111225	28373383
20120125	27913844
20120225	27459718
20120325	27007997
20120425	26558666
20120525	26111715
20120625	25667130
20120725	25224900
20120825	24785011
20120925	24347453
20121025	23912213
20121125	23479279
20121225	23048639
20130125	22620281
20130225	22203233
20130325	21793597
20130425	21391245
20130525	20996048
20130625	20607884
20130725	20226631
20130825	19852168
20130925	19484376
20131025	19123142
20131125	18768349
20131225	18419887
20140125	18077646
20140225	17747784
20140325	17423719
20140425	17105352
20140525	16792585
20140625	16485321
20140725	16183467
20140825	15886928
20140925	15595614
20141025	15309435
20141125	15028302
20141225	14748761
20150125	14474189
20150225	14204498
20150325	13939605
20150425	13679427
20150525	13423882
20150625	13172889
20150725	12926370
20150825	12684247
20150925	12446445
20151025	12212888
20151125	11983502
20151225	11758216
20160125	11536958
20160225	11319657
20160325	11106247
20160425	10896658
20160525	10690825
20160625	10488681
20160725	10290164
20160825	10095210
20160925	9903757
20161025	9715743
20161125	9531110
20161225	9349798
20170125	9171750
20170225	8996908
20170325	8825216
20170425	8656620
20170525	8491066
20170625	8328500
20170725	8168871
20170825	8012126
20170925	7858216
20171025	7707092
20171125	7558703
20171225	7413004
20180125	7269945
20180225	7129482
20180325	6991569
20180425	6856161
20180525	6723213
20180625	6592684
20180725	6464531
20180825	6338712
20180925	6215185
20181025	6093911
20181125	5974851
20181225	5857964
20190125	5743214
20190225	5630562
20190325	5519972
20190425	5411407
20190525	5304831
20190625	5200210
20190725	5097509
20190825	4996694
20190925	4897732
20191025	4800590
20191125	4705236
20191225	4611639
20200125	4519768
20200225	4429591
20200325	4341079
20200425	4254203
20200525	4168933
20200625	4085241
20200725	4003100
20200825	3922481
20200925	3843358
20201025	3765704
20201125	3689493
20201225	3614699
20210125	3541297
20210225	3469263
20210325	3398572
20210425	3329201
20210525	3261125
20210625	3194322
20210725	3128768
20210825	3064443
20210925	3001323
20211025	2939387
20211125	2878614
20211225	2818984
20220125	2760476
20220225	2703069
20220325	2646745
20220425	2591483
20220525	2537266
20220625	2484073
20220725	2431886
20220825	2380688
20220925	2330461
20221025	2281188
20221125	2232850
20221225	2185432
20230125	2138916
20230225	2093288
20230325	2048529
20230425	2004626
20230525	1961562
20230625	1919323
20230725	1877893
20230825	1837257
20230925	1797403
20231025	1758314
20231125	1719978
20231225	1682381
20240125	1645509
20240225	1609349
20240325	1573889
20240425	1539115
20240525	1505016
20240625	1471578
20240725	1438790
20240825	1406640
20240925	1375117
20241025	1344208
20241125	1313904
20241225	1284191
20250125	1255061
20250225	1226502
20250325	1198504
20250425	1171057
20250525	1144150
20250625	1117773
20250725	1091917
20250825	1066572
20250925	1041730
20251025	1017379
20251125	993512.8
20251225	970120.7
20260125	947194.6
20260225	924725.7
20260325	902705.7
20260425	881126.2
20260525	859979.2
20260625	839256.5
20260725	818950.4
20260825	799053.1
20260925	779557.1
20261025	760454.8
20261125	741739.1
20261225	723402.6
20270125	705438.3
20270225	687839.3
20270325	670598.9
20270425	653710.2
20270525	637166.7
20270625	620962
20270725	605089.8
20270825	589543.8
20270925	574317.8
20271025	559406
20271125	544802.3
20271225	530501.1
20280125	516496.5
20280225	502783.1
20280325	489355.3
20280425	476207.8
20280525	463335.3
20280625	450732.5
20280725	438394.3
20280825	426315.8
20280925	414492
20281025	402918.2
20281125	391589.4
20281225	380501.2
20290125	369648.8
20290225	359027.9
20290325	348633.9
20290425	338462.6
20290525	328509.7
20290625	318771
20290725	309242.5
20290825	299920
20290925	290799.6
20291025	281877.5
20291125	273149.9
20291225	264612.9
20300125	256262.9
20300225	248096.3
20300325	240109.5
20300425	232299.2
20300525	224661.7
20300625	217193.9
20300725	209892.3
20300825	202753.8
20300925	195775.2
20301025	188953.4
20301125	182285.2
20301225	175767.8
20310125	169398.1
20310225	163173.2
20310325	157090.4
20310425	151146.7
20310525	145339.6
20310625	139666.2
20310725	134124
20310825	128710.3
20310925	123422.6
20311025	118258.5
20311125	113215.4
20311225	108290.9
20320125	103482.7
20320225	98788.53
20320325	94206.02
20320425	89732.96
20320525	85367.18
20320625	81106.5
20320725	76948.83
20320825	72892.08
20320925	68934.23
20321025	65073.27
20321125	61307.25
20321225	57634.24
20330125	54052.35
20330225	50559.74
20330325	47154.58
20330425	43835.1
20330525	40599.53
20330625	37446.16
20330725	34373.31
20330825	31379.33
20330925	28462.58
20331025	25621.47
20331125	22854.45
20331225	20159.98
20340125	17536.55
20340225	14982.69
20340325	12496.94
20340425	10320.32
20340525	8202.15
20340625	6141.21
20340725	4136.3
20340825	2186.25
20340925	289.9
20341025	67.17
20341125	0

----------------------------------------------

$ VERSION: 3.01 (BLOOMBERG CMO BOND FILE)

--------------------------------------------------

$ DEAL: TRACK1

$ PRICING: 300 PSA

$ SETTLEMENT: 20050131

------------------------------------------

$ BLOCK: 1

!{ TRANCHE NAME: 1A3 }

$ ORIGINAL_AMOUNT: 11135000.00

$ CURRENT_FACTOR: 1.000000000

$ CURRENT_COUPON: 5.5

$ PRINCIPAL_FREQ: 12

$ PAYMENT_DELAY: 24

$ DATED_DATE: 20050101

$ FIRST_PAYMENT_DATE: 20050225

$ NEXT_PAYMENT_DATE: 20050225

$ ACCRUAL_METHOD: THIRTY_360

--------------------------------------------------

$ BLOCK: 2

!{ TRANCHE NAME: 1A1 }

$ ORIGINAL_AMOUNT: 79000000.00

$ CURRENT_FACTOR: 1.000000000

$ CURRENT_COUPON: 5.5

$ PRINCIPAL_FREQ: 12

$ PAYMENT_DELAY: 24

$ DATED_DATE: 20050101

$ FIRST_PAYMENT_DATE: 20050225

$ NEXT_PAYMENT_DATE: 20050225

$ ACCRUAL_METHOD: THIRTY_360

--------------------------------------------------

$ BLOCK: 3

!{ TRANCHE NAME: 1A2 }

$ ORIGINAL_AMOUNT: 17858000.00

$ CURRENT_FACTOR: 1.000000000

$ CURRENT_COUPON: 5.5

$ PRINCIPAL_FREQ: 12

$ PAYMENT_DELAY: 24

$ DATED_DATE: 20050101

$ FIRST_PAYMENT_DATE: 20050225

$ NEXT_PAYMENT_DATE: 20050225

$ ACCRUAL_METHOD: THIRTY_360

--------------------------------------------------

$ BLOCK: 4

!{ TRANCHE NAME: 1A4 }

$ ORIGINAL_AMOUNT: 25439000.00

$ CURRENT_FACTOR: 1.000000000

$ CURRENT_COUPON: 5.5

$ PRINCIPAL_FREQ: 12

$ PAYMENT_DELAY: 24

$ DATED_DATE: 20050101

$ FIRST_PAYMENT_DATE: 20050225

$ NEXT_PAYMENT_DATE: 20050225

$ ACCRUAL_METHOD: THIRTY_360

--------------------------------------------------

$ BLOCK: 5

!{ TRANCHE NAME: 1A5 }

$ ORIGINAL_AMOUNT: 19857000.00

$ CURRENT_FACTOR: 1.000000000

$ CURRENT_COUPON: 5.5

$ PRINCIPAL_FREQ: 12

$ PAYMENT_DELAY: 24

$ DATED_DATE: 20050101

$ FIRST_PAYMENT_DATE: 20050225

$ NEXT_PAYMENT_DATE: 20050225

$ ACCRUAL_METHOD: THIRTY_360

--------------------------------------------------

$ BLOCK: 6

!{ TRANCHE NAME: 1A6 }

$ ORIGINAL_AMOUNT: 24080000.00

$ CURRENT_FACTOR: 1.000000000

$ CURRENT_COUPON: 5.5

$ PRINCIPAL_FREQ: 12

$ PAYMENT_DELAY: 24

$ DATED_DATE: 20050101

$ FIRST_PAYMENT_DATE: 20050225

$ NEXT_PAYMENT_DATE: 20050225

$ ACCRUAL_METHOD: THIRTY_360

--------------------------------------------------

$ BLOCK: 7

!{ TRANCHE NAME: 1A7 }

$ ORIGINAL_AMOUNT: 38617000.00

$ CURRENT_FACTOR: 1.000000000

$ CURRENT_COUPON: 5.5

$ PRINCIPAL_FREQ: 12

$ PAYMENT_DELAY: 24

$ DATED_DATE: 20050101

$ FIRST_PAYMENT_DATE: 20050225

$ NEXT_PAYMENT_DATE: 20050225

$ ACCRUAL_METHOD: THIRTY_360

--------------------------------------------------

$ BLOCK: 8

!{ TRANCHE NAME: 1SUB }

$ ORIGINAL_AMOUNT: 6711787.96

$ CURRENT_FACTOR: 1.000000000

$ CURRENT_COUPON: 5.5

$ PRINCIPAL_FREQ: 12

$ PAYMENT_DELAY: 24

$ DATED_DATE: 20050101

$ FIRST_PAYMENT_DATE: 20050225

$ NEXT_PAYMENT_DATE: 20050225

$ ACCRUAL_METHOD: THIRTY_360

--------------------------------------------------

$ TRANCHE: 1

$ NAME: "1A3"

$ CSORT: 1

$ TYPE: NAS

$ RECORD_DELAY: 24

$ COMPOSITION: BLOCK: 1 PRIN: 100.000000000 INT: 100.000000000

--------------------------------------------------

$ TRANCHE: 2

$ NAME: "1A1"

$ CSORT: 2

$ TYPE:

$ RECORD_DELAY: 24

$ COMPOSITION: BLOCK: 2 PRIN: 100.000000000 INT: 100.000000000

--------------------------------------------------

$ TRANCHE: 3

$ NAME: "1A2"

$ CSORT: 3

$ TYPE:

$ RECORD_DELAY: 24

$ COMPOSITION: BLOCK: 3 PRIN: 100.000000000 INT: 100.000000000

--------------------------------------------------

$ TRANCHE: 4

$ NAME: "1A4"

$ CSORT: 4

$ TYPE: PAC

$ RECORD_DELAY: 24

$ COMPOSITION: BLOCK: 4 PRIN: 100.000000000 INT: 100.000000000

--------------------------------------------------

$ TRANCHE: 5

$ NAME: "1A5"

$ CSORT: 5

$ TYPE: PAC

$ RECORD_DELAY: 24

$ COMPOSITION: BLOCK: 5 PRIN: 100.000000000 INT: 100.000000000

--------------------------------------------------

$ TRANCHE: 6

$ NAME: "1A6"

$ CSORT: 6

$ TYPE: PAC

$ RECORD_DELAY: 24

$ COMPOSITION: BLOCK: 6 PRIN: 100.000000000 INT: 100.000000000

--------------------------------------------------

$ TRANCHE: 7

$ NAME: "1A7"

$ CSORT: 7

$ TYPE: SUP

$ RECORD_DELAY: 24

$ COMPOSITION: BLOCK: 7 PRIN: 100.000000000 INT: 100.000000000

--------------------------------------------------

$ TRANCHE: 8

$ NAME: "1SUB"

$ CSORT: 8

$ TYPE: SUB

$ RECORD_DELAY: 24

$ COMPOSITION: BLOCK: 8 PRIN: 100.000000000 INT: 100.000000000

--------------------------------------------------

$ END_TRANCHES:

--------------------------------------------------

$ SCHEDULE: 1

$ PAYS: { TRANCHE(1A4,1A5,1A6) }

20050125 69376000.00

20050225 69214577.95

20050325 69034157.39

20050425 68834791.70

20050525 68616544.06

20050625 68379487.46

20050725 68123704.67

20050825 67849288.18

20050925 67556340.18

20051025 67244972.50

20051125 66915306.54

20051225 66567473.23

20060125 66201612.92

20060225 65817875.30

20060325 65416419.32

20060425 64997413.08

20060525 64561033.72

20060625 64107467.29

20060725 63636908.65

20060825 63149561.31

20060925 62645637.31

20061025 62125357.06

20061125 61588949.17

20061225 61036650.30

20070125 60468705.01

20070225 59885365.55

20070325 59286891.67

20070425 58673550.48

20070525 58047604.79

20070625 57424947.72

20070725 56805562.51

20070825 56189432.51

20070925 55576541.16

20071025 54966871.96

20071125 54360408.52

20071225 53757134.53

20080125 53157033.74

20080225 52560090.03

20080325 51966287.32

20080425 51375609.65

20080525 50788041.11

20080625 50203565.89

20080725 49622168.27

20080825 49043832.60

20080925 48468543.31

20081025 47896284.92

20081125 47327042.01

20081225 46760799.28

20090125 46197541.47

20090225 45637253.41

20090325 45079920.03

20090425 44525526.31

20090525 43974057.32

20090625 43425498.21

20090725 42879834.22

20090825 42337050.63

20090925 41797132.83

20091025 41260066.28

20091125 40725836.50

20091225 40194429.10

20100125 39665829.77

20100225 39144850.42

20100325 38626629.92

20100425 38111154.13

20100525 37598408.96

20100625 37088380.42

20100725 36581054.57

20100825 36076417.55

20100925 35574455.57

20101025 35075154.91

20101125 34578501.93

20101225 34084483.05

20110125 33593084.76

20110225 33105845.87

20110325 32621190.56

20110425 32139105.54

20110525 31659577.58

20110625 31182593.52

20110725 30708140.29

20110825 30236204.85

20110925 29766774.27

20111025 29299835.65

20111125 28835376.18

20111225 28373383.11

20120125 27913843.74

20120225 27459718.44

20120325 27007996.83

20120425 26558666.47

20120525 26111715.00

20120625 25667130.12

20120725 25224899.60

20120825 24785011.27

20120925 24347453.01

20121025 23912212.78

20121125 23479278.59

20121225 23048638.52

20130125 22620280.72

20130225 22203233.33

20130325 21793597.49

20130425 21391244.63

20130525 20996048.37

20130625 20607884.48

20130725 20226630.87

20130825 19852167.52

20130925 19484376.46

20131025 19123141.74

20131125 18768349.40

20131225 18419887.41

20140125 18077645.67

20140225 17747783.74

20140325 17423719.09

20140425 17105352.14

20140525 16792585.00

20140625 16485321.45

20140725 16183466.87

20140825 15886928.26

20140925 15595614.21

20141025 15309434.83

20141125 15028301.76

20141225 14748761.28

20150125 14474188.76

20150225 14204498.27

20150325 13939605.35

20150425 13679426.98

20150525 13423881.54

20150625 13172888.81

20150725 12926369.93

20150825 12684247.37

20150925 12446444.95

20151025 12212887.76

20151125 11983502.17

20151225 11758215.82

20160125 11536957.55

20160225 11319657.45

20160325 11106246.79

20160425 10896657.98

20160525 10690824.63

20160625 10488681.46

20160725 10290164.29

20160825 10095210.05

20160925 9903756.76

20161025 9715743.47

20161125 9531110.29

20161225 9349798.34

20170125 9171749.75

20170225 8996907.64

20170325 8825216.11

20170425 8656620.19

20170525 8491065.88

20170625 8328500.09

20170725 8168870.64

20170825 8012126.22

20170925 7858216.44

20171025 7707091.74

20171125 7558703.42

20171225 7413003.61

20180125 7269945.26

20180225 7129482.14

20180325 6991568.78

20180425 6856160.53

20180525 6723213.48

20180625 6592684.47

20180725 6464531.09

20180825 6338711.65

20180925 6215185.19

20181025 6093911.44

20181125 5974850.82

20181225 5857964.45

20190125 5743214.08

20190225 5630562.15

20190325 5519971.74

20190425 5411406.55

20190525 5304830.92

20190625 5200209.79

20190725 5097508.72

20190825 4996693.84

20190925 4897731.89

20191025 4800590.15

20191125 4705236.49

20191225 4611639.33

20200125 4519767.63

20200225 4429590.87

20200325 4341079.08

20200425 4254202.80

20200525 4168933.06

20200625 4085241.42

20200725 4003099.92

20200825 3922481.06

20200925 3843357.85

20201025 3765703.74

20201125 3689492.65

20201225 3614698.95

20210125 3541297.46

20210225 3469263.41

20210325 3398572.49

20210425 3329200.80

20210525 3261124.84

20210625 3194321.53

20210725 3128768.19

20210825 3064442.53

20210925 3001322.65

20211025 2939387.02

20211125 2878614.49

20211225 2818984.28

20220125 2760475.97

20220225 2703069.48

20220325 2646745.10

20220425 2591483.46

20220525 2537265.50

20220625 2484072.52

20220725 2431886.14

20220825 2380688.29

20220925 2330461.22

20221025 2281187.50

20221125 2232849.97

20221225 2185431.81

20230125 2138916.47

20230225 2093287.69

20230325 2048529.49

20230425 2004626.18

20230525 1961562.35

20230625 1919322.83

20230725 1877892.74

20230825 1837257.46

20230925 1797402.60

20231025 1758314.05

20231125 1719977.94

20231225 1682380.63

20240125 1645508.73

20240225 1609349.09

20240325 1573888.77

20240425 1539115.07

20240525 1505015.52

20240625 1471577.85

20240725 1438790.02

20240825 1406640.19

20240925 1375116.75

20241025 1344208.27

20241125 1313903.52

20241225 1284191.48

20250125 1255061.33

20250225 1226502.41

20250325 1198504.29

20250425 1171056.69

20250525 1144149.53

20250625 1117772.89

20250725 1091917.04

20250825 1066572.41

20250925 1041729.62

20251025 1017379.42

20251125 993512.77

20251225 970120.74

20260125 947194.59

20260225 924725.72

20260325 902705.71

20260425 881126.24

20260525 859979.18

20260625 839256.53

20260725 818950.42

20260825 799053.13

20260925 779557.08

20261025 760454.83

20261125 741739.05

20261225 723402.56

20270125 705438.30

20270225 687839.33

20270325 670598.86

20270425 653710.17

20270525 637166.71

20270625 620962.03

20270725 605089.78

20270825 589543.75

20270925 574317.81

20271025 559405.96

20271125 544802.30

20271225 530501.05

20280125 516496.51

20280225 502783.10

20280325 489355.33

20280425 476207.81

20280525 463335.25

20280625 450732.45

20280725 438394.31

20280825 426315.81

20280925 414492.04

20281025 402918.16

20281125 391589.42

20281225 380501.16

20290125 369648.80

20290225 359027.85

20290325 348633.89

20290425 338462.59

20290525 328509.69

20290625 318771.01

20290725 309242.45

20290825 299919.98

20290925 290799.63

20291025 281877.53

20291125 273149.86

20291225 264612.87

20300125 256262.88

20300225 248096.29

20300325 240109.54

20300425 232299.15

20300525 224661.71

20300625 217193.86

20300725 209892.31

20300825 202753.81

20300925 195775.20

20301025 188953.35

20301125 182285.20

20301225 175767.75

20310125 169398.05

20310225 163173.20

20310325 157090.36

20310425 151146.73

20310525 145339.57

20310625 139666.20

20310725 134123.97

20310825 128710.30

20310925 123422.62

20311025 118258.46

20311125 113215.36

20311225 108290.90

20320125 103482.73

20320225 98788.53

20320325 94206.02

20320425 89732.96

20320525 85367.18

20320625 81106.50

20320725 76948.83

20320825 72892.08

20320925 68934.23

20321025 65073.27

20321125 61307.25

20321225 57634.24

20330125 54052.35

20330225 50559.74

20330325 47154.58

20330425 43835.10

20330525 40599.53

20330625 37446.16

20330725 34373.31

20330825 31379.33

20330925 28462.58

20331025 25621.47

20331125 22854.45

20331225 20159.98

20340125 17536.55

20340225 14982.69

20340325 12496.94

20340425 10320.32

20340525 8202.15

20340625 6141.21

20340725 4136.30

20340825 2186.25

20340925 289.90

20341025 67.17

20341125 0.00

END SCHEDULE: 1

--------------------------------------------------

END OF BOND FILE

***************************************************

$ VERSION: 3.03 (BLOOMBERG CMO COLLATERAL FILE)

---------------------------------------------------

$ AGENCY_LIST: Type Factor Date P/Y Delay BV Delay

WHOLE 20050101 55 54

---------------------------------------------------

$ ASSUMED_POOLS:

--------------------------------------------------------------------------------

!G Pool Number Pool Type NET-CPN CURR--FACT ORIG--BALANCE PY-FEE BV-FEE

PY/BV/BLN-W AGE

--------------------------------------------------------------------------------

M 1 WHOLE XX/XX 5.500000000 1.00000000 19833337.52 0.501078043 0.501078043 240 240 358 2

M 2 WHOLE XX/XX 5.500000000 1.00000000 25220366.97 0.041927653 0.041927653 350 350 350 3

M 3 WHOLE XX/XX 5.500000000 1.00000000 177644083.47 0.402257357 0.402257357 356 356 356 2

Deal Summary Report

TRACK2

Assumptions

Collateral

Settlement

31-Jan-05

Prepay

300 PSA

Balance

WAC

WAM

Age

WAL

Dur

1st Pay Date

25-Feb-05

Default

0 CDR

$203,095,080.81

6.16

351

5.55

4.323

Recovery

months

Severity

Tranche

Rating

Balance

Coupon

Principal

Avg

Dur

Yield

Spread

Bench

Price

$@1bp

Accrued

NetNet

Dated

Notes

Name

Window

Life

Int(M)

(MM)

Date

2A3

19,700,000.00

02/10 - 11/34

10.81

1-Jan-05

WAC

2A1

145,000,000.00

02/05 - 05/12

3.33

1-Jan-05

WAC

2A2

32,300,000.00

05/12 - 11/34

11.39

1-Jan-05

WAC

2SUB

6,095,080.81

02/05 - 11/34

10.31

1-Jan-05

WAC

Yield Curve

Mat 6MO 2YR 3YR 5YR 10YR 30YR

Yld 2.67500 3.24200 3.38900 3.71500 4.19500 4.68700

Swaps

3MO 6MO 1YR 2YR 3YR 5YR 6YR 7YR 8YR 9YR 10YR 11YR 12YR 13YR 14YR 15YR 20YR 25YR

2.4600 2.6525 2.9487 3.2675 3.4968 3.8831 4.0455 4.1883 4.3135 4.4236 4.5217 4.6100 4.6905 4.7627 4.8273 4.8833 5.0586 5.1249

edsf

0.5YR 1.25YR

1.182 1.480

Payrules

Pay 2A3 to NAS schedule

Pay 2A1, 2A2 sequentially to zero.

Pay 2A3 to zero.

The NAS is locked out of all payments for 60 months.
Starting in month 61, the NAS receives: Priority Payment Fraction(Scheduled PrincipalPayments)+(NAS Shift Percentage) (Unscheduled Principal Payments)
The Priority Payment Fraction is defined as (Balance of 2A3)/(Balance of (2A3+2A1+2A2))
The NAS Schift Schedule is defined as follows:


Month <=	NAS Shift %
60	0
72	30
84	40
96	60
108	80
120	100

TRACK2 - Stack Price/Yield

Settle	1/31/2005
First Payment	2/25/2005

	1	2	3	4	5
COLLAT
Price	100	100	100	100	100
Yield	6.04	6.01	5.98	5.95	5.92
WAL	18.93	9.00	5.55	4.01	3.17
Mod Durn	10.391	6.086	4.244	3.281	2.698
Mod Convexity	1.715	0.662	0.324	0.189	0.125
Principal Window	Feb05 - Nov34	Feb05 - Nov34	Feb05 - Nov34	Feb05 - Nov34	Feb05 - Nov34
Price	100-00	100-00	100-00	100-00	100-00
2A3
Price	100	100	100	100	100
Yield	6.04	6.03	6.02	6.01	6.00
WAL	20.12	13.65	10.81	9.31	7.46
Mod Durn	10.978	8.673	7.502	6.796	5.789
Mod Convexity	1.834	1.105	0.787	0.622	0.432
Principal Window	Feb10 - Nov34	Feb10 - Nov34	Feb10 - Nov34	Feb10 - Nov34	Feb10 - Nov34
Price	100-00	100-00	100-00	100-00	100-00
2A1
Price	100	100	100	100	100
Yield	6.03	5.98	5.93	5.89	5.85
WAL	16.75	5.79	3.33	2.48	2.05
Mod Durn	9.679	4.502	2.869	2.211	1.852
Mod Convexity	1.479	0.330	0.126	0.074	0.052
Principal Window	Feb05 - Aug31	Feb05 - May19	Feb05 - May12	Feb05 - Dec09	Feb05 - Nov08
Price	100-00	100-00	100-00	100-00	100-00
2A2
Price	100	100	100	100	100
Yield	6.04	6.04	6.02	6.00	5.97
WAL	27.99	19.84	11.39	6.69	4.64
Mod Durn	13.227	11.170	7.836	5.293	3.934
Mod Convexity	2.701	1.803	0.843	0.363	0.190
Principal Window	Aug31 - Nov34	May19 - Nov34	May12 - Nov34	Dec09 - Nov34	Nov08 - Dec10
Price	100-00	100-00	100-00	100-00	100-00
2SUB
Price	100	100	100	100	100
Yield	6.04	6.03	6.02	6.01	6.01
WAL	18.93	12.93	10.31	8.97	8.16
Mod Durn	10.391	8.255	7.180	6.555	6.141
Mod Convexity	1.715	1.038	0.745	0.597	0.511
Principal Window	Feb05 - Nov34	Feb05 - Nov34	Feb05 - Nov34	Feb05 - Nov34	Feb05 - Nov34
Price	100-00	100-00	100-00	100-00	100-00
Prepay	0 PSA	150 PSA	300 PSA	450 PSA	600 PSA

TRACK2 - Dec - 2A1


Date	1	2	3	4	5
31-Jan-05	100	100	100	100	100
25-Jan-06	98	95	91	87	83
25-Jan-07	97	85	73	62	51
25-Jan-08	95	72	52	34	18
25-Jan-09	93	60	34	13	0
25-Jan-10	91	50	20	0	0
25-Jan-11	89	41	10	0	0
25-Jan-12	87	34	2	0	0
25-Jan-13	84	27	0	0	0
25-Jan-14	82	21	0	0	0
25-Jan-15	79	16	0	0	0
25-Jan-16	77	12	0	0	0
25-Jan-17	74	8	0	0	0
25-Jan-18	70	4	0	0	0
25-Jan-19	67	1	0	0	0
25-Jan-20	63	0	0	0	0
25-Jan-21	59	0	0	0	0
25-Jan-22	55	0	0	0	0
25-Jan-23	51	0	0	0	0
25-Jan-24	46	0	0	0	0
25-Jan-25	41	0	0	0	0
25-Jan-26	36	0	0	0	0
25-Jan-27	30	0	0	0	0
25-Jan-28	24	0	0	0	0
25-Jan-29	18	0	0	0	0
25-Jan-30	11	0	0	0	0
25-Jan-31	4	0	0	0	0
25-Jan-32	0	0	0	0	0

WAL	16.75	5.79	3.33	2.48	2.05
Principal Window	Feb05-Aug31	Feb05-May19	Feb05-May12	Feb05-Dec09	Feb05-Nov08

Prepay	0 PSA	150 PSA	300 PSA	450 PSA	600 PSA

TRACK2 - Dec - 2A2


Date	1	2	3	4	5
31-Jan-05	100	100	100	100	100
25-Jan-06	100	100	100	100	100
25-Jan-07	100	100	100	100	100
25-Jan-08	100	100	100	100	100
25-Jan-09	100	100	100	100	85
25-Jan-10	100	100	100	92	25
25-Jan-11	100	100	100	53	0
25-Jan-12	100	100	100	28	0
25-Jan-13	100	100	83	15	0
25-Jan-14	100	100	64	8	0
25-Jan-15	100	100	52	6	0
25-Jan-16	100	100	41	4	0
25-Jan-17	100	100	33	3	0
25-Jan-18	100	100	26	2	0
25-Jan-19	100	100	20	2	0
25-Jan-20	100	91	16	1	0
25-Jan-21	100	79	13	1	0
25-Jan-22	100	68	10	1	0
25-Jan-23	100	59	8	*	0
25-Jan-24	100	50	6	*	0
25-Jan-25	100	42	4	*	0
25-Jan-26	100	35	3	*	0
25-Jan-27	100	29	2	*	0
25-Jan-28	100	23	2	*	0
25-Jan-29	100	18	1	*	0
25-Jan-30	100	14	1	*	0
25-Jan-31	100	10	1	*	0
25-Jan-32	84	6	*	*	0
25-Jan-33	48	3	*	*	0
25-Jan-34	14	1	*	*	0
25-Jan-35	0	0	0	0	0

WAL	27.99	19.84	11.39	6.69	4.64
Principal Window	Aug31-Nov34	May19-Nov34	May12-Nov34	Dec09-Nov34	Nov08-Dec10

Prepay	0 PSA	150 PSA	300 PSA	450 PSA	600 PSA

TRACK2 - Dec - 2A3


Date	1	2	3	4	5
31-Jan-05	100	100	100	100	100
25-Jan-06	100	100	100	100	100
25-Jan-07	100	100	100	100	100
25-Jan-08	100	100	100	100	100
25-Jan-09	100	100	100	100	100
25-Jan-10	100	100	100	100	100
25-Jan-11	98	95	92	89	81
25-Jan-12	96	90	83	76	46
25-Jan-13	94	83	72	61	27
25-Jan-14	92	75	60	46	16
25-Jan-15	90	67	48	32	10
25-Jan-16	87	59	38	23	6
25-Jan-17	85	52	30	16	4
25-Jan-18	82	46	24	12	2
25-Jan-19	79	40	19	8	1
25-Jan-20	76	35	15	6	1
25-Jan-21	72	31	12	4	1
25-Jan-22	69	26	9	3	*
25-Jan-23	65	23	7	2	*
25-Jan-24	61	19	5	1	*
25-Jan-25	56	16	4	1	*
25-Jan-26	52	14	3	1	*
25-Jan-27	47	11	2	*	*
25-Jan-28	41	9	2	*	*
25-Jan-29	36	7	1	*	*
25-Jan-30	30	5	1	*	*
25-Jan-31	23	4	1	*	*
25-Jan-32	17	2	*	*	*
25-Jan-33	9	1	*	*	*
25-Jan-34	3	*	*	*	*
25-Jan-35	0	0	0	0	0

WAL	20.12	13.65	10.81	9.31	7.46
Principal Window	Feb10-Nov34	Feb10-Nov34	Feb10-Nov34	Feb10-Nov34	Feb10-Nov34

Prepay	0 PSA	150 PSA	300 PSA	450 PSA	600 PSA

TRACK2 - Dec - 2SUB


Date	1	2	3	4	5
31-Jan-05	100	100	100	100	100
25-Jan-06	99	99	99	99	99
25-Jan-07	98	98	98	98	98
25-Jan-08	96	96	96	96	96
25-Jan-09	95	95	95	95	95
25-Jan-10	93	93	93	93	93
25-Jan-11	92	89	86	83	80
25-Jan-12	90	84	78	72	66
25-Jan-13	88	78	68	59	50
25-Jan-14	86	71	57	45	34
25-Jan-15	84	63	45	32	21
25-Jan-16	82	55	36	23	13
25-Jan-17	79	49	29	16	8
25-Jan-18	76	43	23	11	5
25-Jan-19	74	38	18	8	3
25-Jan-20	71	33	14	6	2
25-Jan-21	67	29	11	4	1
25-Jan-22	64	25	9	3	1
25-Jan-23	60	21	7	2	*
25-Jan-24	56	18	5	1	*
25-Jan-25	52	15	4	1	*
25-Jan-26	48	13	3	1	*
25-Jan-27	43	10	2	*	*
25-Jan-28	38	8	2	*	*
25-Jan-29	33	7	1	*	*
25-Jan-30	28	5	1	*	*
25-Jan-31	22	4	*	*	*
25-Jan-32	15	2	*	*	*
25-Jan-33	9	1	*	*	*
25-Jan-34	3	*	*	*	*
25-Jan-35	0	0	0	0	0

WAL	18.93	12.93	10.31	8.97	8.16
Principal Window	Feb05-Nov34	Feb05-Nov34	Feb05-Nov34	Feb05-Nov34	Feb05-Nov34

Prepay	0 PSA	150 PSA	300 PSA	450 PSA	600 PSA

TRACK2 - Dec - COLLAT


Date	1	2	3	4	5
31-Jan-05	100	100	100	100	100
25-Jan-06	99	96	93	91	88
25-Jan-07	98	89	81	73	65
25-Jan-08	96	80	65	53	41
25-Jan-09	95	72	53	38	26
25-Jan-10	93	64	43	27	16
25-Jan-11	92	57	34	19	10
25-Jan-12	90	51	28	14	6
25-Jan-13	88	46	22	10	4
25-Jan-14	86	41	18	7	3
25-Jan-15	84	36	14	5	2
25-Jan-16	82	32	11	4	1
25-Jan-17	79	28	9	3	1
25-Jan-18	76	25	7	2	*
25-Jan-19	74	22	6	1	*
25-Jan-20	71	19	4	1	*
25-Jan-21	67	16	3	1	*
25-Jan-22	64	14	3	*	*
25-Jan-23	60	12	2	*	*
25-Jan-24	56	10	2	*	*
25-Jan-25	52	9	1	*	*
25-Jan-26	48	7	1	*	*
25-Jan-27	43	6	1	*	*
25-Jan-28	38	5	*	*	*
25-Jan-29	33	4	*	*	*
25-Jan-30	28	3	*	*	*
25-Jan-31	22	2	*	*	*
25-Jan-32	15	1	*	*	*
25-Jan-33	9	1	*	*	*
25-Jan-34	3	*	*	*	*
25-Jan-35	0	0	0	0	0

WAL	18.93	9	5.55	4.01	3.17
Principal Window	Feb05-Nov34	Feb05-Nov34	Feb05-Nov34	Feb05-Nov34	Feb05-Nov34

Prepay	0 PSA	150 PSA	300 PSA	450 PSA	600 PSA

--------------------------------------------------

$ VERSION: 3.01 (BLOOMBERG CMO BOND FILE)

--------------------------------------------------

$ DEAL: gstrack3up

$ PRICING: 500 PSA

$ SETTLEMENT: 20050131

------------------------------------------

$ BLOCK: 1

$ GROUP_LINK: 1

!{ TRANCHE NAME: 3A1 }

$ ORIGINAL_AMOUNT: 143000000.00

$ CURRENT_FACTOR: 1.000000000

$ CURRENT_COUPON: 4.25

$ PRINCIPAL_FREQ: 12

$ PAYMENT_DELAY: 24

$ DATED_DATE: 20050101

$ FIRST_PAYMENT_DATE: 20050225

$ NEXT_PAYMENT_DATE: 20050225

$ ACCRUAL_METHOD: THIRTY_360

--------------------------------------------------

$ BLOCK: 2

$ GROUP_LINK: 1

!{ TRANCHE NAME: 3A3 }

$ ORIGINAL_AMOUNT: 56717000.00

$ CURRENT_FACTOR: 1.000000000

$ CURRENT_COUPON: 6

$ PRINCIPAL_FREQ: 12

$ PAYMENT_DELAY: 24

$ DATED_DATE: 20050101

$ FIRST_PAYMENT_DATE: 20050225

$ NEXT_PAYMENT_DATE: 20050225

$ ACCRUAL_METHOD: THIRTY_360

--------------------------------------------------

$ BLOCK: 3

$ GROUP_LINK: 1

!{ TRANCHE NAME: 3SUB }

$ ORIGINAL_AMOUNT: 6177092.56

$ CURRENT_FACTOR: 1.000000000

$ CURRENT_COUPON: 6

$ PRINCIPAL_FREQ: 12

$ PAYMENT_DELAY: 24

$ DATED_DATE: 20050101

$ FIRST_PAYMENT_DATE: 20050225

$ NEXT_PAYMENT_DATE: 20050225

$ ACCRUAL_METHOD: THIRTY_360

--------------------------------------------------

$ PHANTOM: 4

!{ TRANCHE NAME: 3A2 }

$ ORIGINAL_AMOUNT: 41708333.33

$ CURRENT_FACTOR: 1.000000000

$ CURRENT_COUPON: 6

$ PRINCIPAL_FREQ: 12

$ PAYMENT_DELAY: 24

$ DATED_DATE: 20050101

$ FIRST_PAYMENT_DATE: 20050225

$ NEXT_PAYMENT_DATE: 20050225

$ ACCRUAL_METHOD: THIRTY_360

--------------------------------------------------

$ TRANCHE: 1

$ NAME: "3A1"

$ CSORT: 1

$ TYPE: AD,PAC

$ RECORD_DELAY: 24

$ COMPOSITION: BLOCK: 1 PRIN: 100.000000000 INT: 100.000000000

--------------------------------------------------

$ TRANCHE: 2

$ NAME: "3A2"

$ CSORT: 2

$ TYPE: AD,IO,NTL,PAC

$ RECORD_DELAY: 24

$ NOTIONAL:

$ COMPOSITION: BLOCK: 4 PRIN: 100.000000000 INT: 100.000000000

! ( notional tranche name is 3A2 )

--------------------------------------------------

$ TRANCHE: 3

$ NAME: "3A3"

$ CSORT: 3

$ TYPE: Z

$ RECORD_DELAY: 24

$ COMPOSITION: BLOCK: 2 PRIN: 100.000000000 INT: 100.000000000

--------------------------------------------------

$ TRANCHE: 4

$ NAME: "3SUB"

$ CSORT: 4

$ TYPE: SUB

$ RECORD_DELAY: 24

$ COMPOSITION: BLOCK: 3 PRIN: 100.000000000 INT: 100.000000000

--------------------------------------------------

$ END_TRANCHES:

--------------------------------------------------

$ SCHEDULE: 1

$ PAYS: { TRANCHE(3A1,3A2) }

20050125 143000000.00

20050225 140682564.22

20050325 138364669.69

20050425 136045928.21

20050525 133726006.48

20050625 131404626.04

20050725 129081563.10

20050825 126756648.26

20050925 124429766.12

20051025 122100854.80

20051125 119769905.36

20051225 117436961.04

20060125 115102116.48

20060225 112765516.78

20060325 110427356.48

20060425 108087878.39

20060525 105747372.39

20060625 103406174.03

20060725 101064663.17

20060825 98723262.37

20060925 96382435.30

20061025 94042685.02

20061125 91704552.18

20061225 89368613.13

20070125 87035477.97

20070225 84705788.55

20070325 82388616.17

20070425 80098449.24

20070525 77843792.94

20070625 75624106.49

20070725 73438857.32

20070825 71287520.89

20070925 69169580.61

20071025 67084527.70

20071125 65031861.09

20071225 63011087.27

20080125 61021720.23

20080225 59063281.30

20080325 57135299.05

20080425 55237309.20

20080525 53368854.49

20080625 51529484.59

20080725 49718755.99

20080825 47936231.89

20080925 46181482.12

20081025 44454083.01

20081125 42753617.32

20081225 41079674.13

20090125 39431848.73

20090225 37809742.58

20090325 36212963.14

20090425 34641123.84

20090525 33093843.96

20090625 31578175.50

20090725 30103111.63

20090825 28667578.18

20090925 27270529.29

20091025 25910946.67

20091125 24587838.86

20091225 23300240.54

20100125 22047211.84

20100225 20873184.19

20100325 19731468.06

20100425 18621199.09

20100525 17541535.73

20100625 16491658.71

20100725 15470770.42

20100825 14478094.35

20100925 13512874.53

20101025 12574375.01

20101125 11661879.30

20101225 10774689.88

20110125 9912127.70

20110225 9087108.95

20110325 8285134.56

20110425 7505582.01

20110525 6747845.30

20110625 6011334.56

20110725 5295475.60

20110825 4599709.52

20110925 3923492.27

20111025 3266294.29

20111125 2627600.12

20111225 2006908.03

20120125 1403729.65

20120225 841200.80

20120325 294575.91

20120425 0.00

END SCHEDULE: 1

--------------------------------------------------

END OF BOND FILE

***************************************************

$ VERSION: 3.03 (BLOOMBERG CMO COLLATERAL FILE)

---------------------------------------------------

$ AGENCY_LIST: Type Factor Date P/Y Delay BV Delay

WHOLE 20050101 55 54

---------------------------------------------------

$ ASSUMED_POOLS:

--------------------------------------------------------------------------------

!G Pool Number Pool Type NET-CPN CURR--FACT ORIG--BALANCE PY-FEE BV-FEE

PY/BV/BLN-W AGE

--------------------------------------------------------------------------------

1 M 1 WHOLE XX/XX 6.000000000 1.00000000 20084002.85 0.073872683 0.073872683 240 240 357 3

1 M 2 WHOLE XX/XX 6.000000000 1.00000000 32567486.05 0.373692196 0.373692196 240 240 356 4

1 M 3 WHOLE XX/XX 6.000000000 1.00000000 19837651.06 0.129508137 0.129508137 354 354 354 5

1 M 4 WHOLE XX/XX 6.000000000 1.00000000 133404952.60 0.698743469 0.698743469 324 324 324 31

GSR05-2F-3 - Summary

Balance	WAC	WAM	Age	WAL	Dur
$201,680,316.84	6	357	2	5.57	4.33

					Assumptions
Settlement		31-Jan-2005	Prepay		300 PSA
1st Pay Date		25-Feb-2005

Tranche	Rating	Balance	Coupon	Principal	Avg	Dated	Notes
Name				Window	Life	Date
3NAS		19,664,000.00	6	02/10 - 10/34	10.83	01-Jan-05	FIX
3A1		144,100,000.00	6	02/05 - 05/12	3.36	01-Jan-05	FIX
3A2		32,874,000.00	6	05/12 - 10/34	11.42	01-Jan-05	FIX
3SUB		5,042,316.84	6	02/05 - 10/34	10.29	01-Jan-05	WAC

Payrules:

Pay 3NAS to NAS schedule.
Pay 3A1, 3A2 sequentially to zero
Pay 3NAS to zero.

The NAS schedule id defined as follows:

The NAS is locked out of all payments for 60 months.
Starting in month 61, the NAS receives: Priority Payment Fraction(Scheduled PrincipalPayments)+(NAS Shift Percentage)(Unscheduled Principal Payments)
The Priority Payment Fraction is defined as (Balance of 3NAS)/(Balance of (3NAS+3A1+3A2))
The NAS Schift Schedule is defined as follows:

Month <=	NAS Shift %
60	0
72	30
84	40
96	60
108	80
120	100

GSR05-2F-3 - Dec - 3A1


Date	1	2	3	4	200 Pricing
31-Jan-05	100	100	100	100	100
25-Jan-06	98	95	91	88	84
25-Jan-07	96	85	74	63	52
25-Jan-08	95	72	52	34	19
25-Jan-09	93	61	34	14	0
25-Jan-10	90	50	20	0	0
25-Jan-11	88	41	10	0	0
25-Jan-12	86	34	2	0	0
25-Jan-13	84	27	0	0	0
25-Jan-14	81	21	0	0	0
25-Jan-15	79	16	0	0	0
25-Jan-16	76	12	0	0	0
25-Jan-17	73	8	0	0	0
25-Jan-18	70	4	0	0	0
25-Jan-19	67	1	0	0	0
25-Jan-20	63	0	0	0	0
25-Jan-21	59	0	0	0	0
25-Jan-22	55	0	0	0	0
25-Jan-23	51	0	0	0	0
25-Jan-24	47	0	0	0	0
25-Jan-25	42	0	0	0	0
25-Jan-26	37	0	0	0	0
25-Jan-27	32	0	0	0	0
25-Jan-28	26	0	0	0	0
25-Jan-29	20	0	0	0	0
25-Jan-30	13	0	0	0	0
25-Jan-31	7	0	0	0	0
25-Jan-32	0	0	0	0	0

WAL	16.81	5.78	3.36	2.51	2.07
Principal Window	Feb05-Jan32	Feb05-Apr19	Feb05-May12	Feb05-Dec09	Feb05-Dec08

Prepay	0 PSA	150 PSA	300 PSA	450 PSA	600 PSA


Disclaimer:

GSR05-2F-3 - Dec - 3A2


Date	1	2	3	4	200 Pricing
31-Jan-05	100	100	100	100	100
25-Jan-06	100	100	100	100	100
25-Jan-07	100	100	100	100	100
25-Jan-08	100	100	100	100	100
25-Jan-09	100	100	100	100	88
25-Jan-10	100	100	100	94	28
25-Jan-11	100	100	100	54	1
25-Jan-12	100	100	100	30	0
25-Jan-13	100	100	83	16	0
25-Jan-14	100	100	65	10	0
25-Jan-15	100	100	52	7	0
25-Jan-16	100	100	41	5	0
25-Jan-17	100	100	33	3	0
25-Jan-18	100	100	26	2	0
25-Jan-19	100	100	21	2	0
25-Jan-20	100	90	16	1	0
25-Jan-21	100	78	13	1	0
25-Jan-22	100	68	10	1	0
25-Jan-23	100	59	8	*	0
25-Jan-24	100	50	6	*	0
25-Jan-25	100	42	5	*	0
25-Jan-26	100	36	3	*	0
25-Jan-27	100	29	3	*	0
25-Jan-28	100	24	2	*	0
25-Jan-29	100	19	1	*	0
25-Jan-30	100	15	1	*	0
25-Jan-31	100	11	1	*	0
25-Jan-32	97	8	*	*	0
25-Jan-33	64	4	*	*	0
25-Jan-34	28	2	*	*	0
25-Jan-35	0	0	0	0	0

WAL	28.4	19.88	11.42	6.79	4.7
Principal Window	Jan32-Oct34	Apr19-Oct34	May12-Oct34	Dec09-Oct34	Dec08-Feb11

Prepay	0 PSA	150 PSA	300 PSA	450 PSA	600 PSA


Disclaimer:

GSR05-2F-3 - Dec - 3NAS


Date	1	2	3	4	200 Pricing
31-Jan-05	100	100	100	100	100
25-Jan-06	100	100	100	100	100
25-Jan-07	100	100	100	100	100
25-Jan-08	100	100	100	100	100
25-Jan-09	100	100	100	100	100
25-Jan-10	100	100	100	100	100
25-Jan-11	98	95	92	89	84
25-Jan-12	96	90	83	76	50
25-Jan-13	94	83	72	61	29
25-Jan-14	92	75	60	46	18
25-Jan-15	90	67	48	33	11
25-Jan-16	87	59	38	23	7
25-Jan-17	85	52	30	16	4
25-Jan-18	82	46	24	12	3
25-Jan-19	79	40	19	8	2
25-Jan-20	76	35	15	6	1
25-Jan-21	73	31	12	4	1
25-Jan-22	69	27	9	3	*
25-Jan-23	65	23	7	2	*
25-Jan-24	61	20	6	1	*
25-Jan-25	57	17	4	1	*
25-Jan-26	53	14	3	1	*
25-Jan-27	48	12	2	*	*
25-Jan-28	43	9	2	*	*
25-Jan-29	38	7	1	*	*
25-Jan-30	32	6	1	*	*
25-Jan-31	26	4	1	*	*
25-Jan-32	20	3	*	*	*
25-Jan-33	13	2	*	*	*
25-Jan-34	6	1	*	*	*
25-Jan-35	0	0	0	0	0

WAL	20.35	13.69	10.83	9.33	7.61
Principal Window	Feb10-Oct34	Feb10-Oct34	Feb10-Oct34	Feb10-Oct34	Feb10-Oct34

Prepay	0 PSA	150 PSA	300 PSA	450 PSA	600 PSA


Disclaimer:

GSR05-2F-3 - Dec - 3SUB


Date	1	2	3	4	200 Pricing
31-Jan-05	100	100	100	100	100
25-Jan-06	99	99	99	99	99
25-Jan-07	97	97	97	97	97
25-Jan-08	96	96	96	96	96
25-Jan-09	95	95	95	95	95
25-Jan-10	93	93	93	93	93
25-Jan-11	91	89	86	83	80
25-Jan-12	89	84	78	72	66
25-Jan-13	88	77	68	58	49
25-Jan-14	86	70	56	44	34
25-Jan-15	83	62	45	32	21
25-Jan-16	81	55	36	22	13
25-Jan-17	79	49	29	16	8
25-Jan-18	76	43	23	11	5
25-Jan-19	73	38	18	8	3
25-Jan-20	71	33	14	6	2
25-Jan-21	67	29	11	4	1
25-Jan-22	64	25	9	3	1
25-Jan-23	61	21	7	2	*
25-Jan-24	57	18	5	1	*
25-Jan-25	53	15	4	1	*
25-Jan-26	49	13	3	1	*
25-Jan-27	45	11	2	*	*
25-Jan-28	40	9	2	*	*
25-Jan-29	35	7	1	*	*
25-Jan-30	30	5	1	*	*
25-Jan-31	24	4	1	*	*
25-Jan-32	18	3	*	*	*
25-Jan-33	12	2	*	*	*
25-Jan-34	5	1	*	*	*
25-Jan-35	0	0	0	0	0

WAL	19.1	12.93	10.29	8.95	8.14
Principal Window	Feb05-Oct34	Feb05-Oct34	Feb05-Oct34	Feb05-Oct34	Feb05-Oct34

Prepay	0 PSA	150 PSA	300 PSA	450 PSA	600 PSA


Disclaimer:

GSR05-2F-3 - Dec - #NETRATE


Date	1	2	3	4	200 Pricing
31-Jan-05	0	0	0	0	0
25-Jan-06	0	0	0	0	0
25-Jan-07	0	0	0	0	0
25-Jan-08	0	0	0	0	0
25-Jan-09	0	0	0	0	0
25-Jan-10	0	0	0	0	0
25-Jan-11	0	0	0	0	0
25-Jan-12	0	0	0	0	0
25-Jan-13	0	0	0	0	0
25-Jan-14	0	0	0	0	0
25-Jan-15	0	0	0	0	0
25-Jan-16	0	0	0	0	0
25-Jan-17	0	0	0	0	0
25-Jan-18	0	0	0	0	0
25-Jan-19	0	0	0	0	0
25-Jan-20	0	0	0	0	0
25-Jan-21	0	0	0	0	0
25-Jan-22	0	0	0	0	0
25-Jan-23	0	0	0	0	0
25-Jan-24	0	0	0	0	0
25-Jan-25	0	0	0	0	0
25-Jan-26	0	0	0	0	0
25-Jan-27	0	0	0	0	0
25-Jan-28	0	0	0	0	0
25-Jan-29	0	0	0	0	0
25-Jan-30	0	0	0	0	0
25-Jan-31	0	0	0	0	0
25-Jan-32	0	0	0	0	0
25-Jan-33	0	0	0	0	0
25-Jan-34	0	0	0	0	0
25-Jan-35	0	0	0	0	0

WAL	NA	NA	NA	NA	NA
Principal Window

Prepay	0 PSA	150 PSA	300 PSA	450 PSA	600 PSA


Disclaimer:

GSR05-2F-3 - Dec - DEAL_PLUGIN


Date	1	2	3	4	200 Pricing
31-Jan-05	100	100	100	100	100
25-Jan-06	99	96	94	91	89
25-Jan-07	97	89	81	73	66
25-Jan-08	96	80	66	53	42
25-Jan-09	95	72	53	38	26
25-Jan-10	93	64	43	27	17
25-Jan-11	91	57	34	20	10
25-Jan-12	89	51	28	14	7
25-Jan-13	88	46	22	10	4
25-Jan-14	86	40	18	7	3
25-Jan-15	83	36	14	5	2
25-Jan-16	81	32	11	4	1
25-Jan-17	79	28	9	3	1
25-Jan-18	76	25	7	2	*
25-Jan-19	73	22	6	1	*
25-Jan-20	71	19	4	1	*
25-Jan-21	67	16	3	1	*
25-Jan-22	64	14	3	*	*
25-Jan-23	61	12	2	*	*
25-Jan-24	57	11	2	*	*
25-Jan-25	53	9	1	*	*
25-Jan-26	49	7	1	*	*
25-Jan-27	45	6	1	*	*
25-Jan-28	40	5	1	*	*
25-Jan-29	35	4	*	*	*
25-Jan-30	30	3	*	*	*
25-Jan-31	24	2	*	*	*
25-Jan-32	18	2	*	*	*
25-Jan-33	12	1	*	*	*
25-Jan-34	5	*	*	*	*
25-Jan-35	0	0	0	0	0

WAL	19.1	9.03	5.57	4.03	3.19
Principal Window	Feb05-Oct34	Feb05-Oct34	Feb05-Oct34	Feb05-Oct34	Feb05-Oct34

Prepay	0 PSA	150 PSA	300 PSA	450 PSA	600 PSA


Disclaimer:

GSR05-2F-3 - Dec - #RESIDCASH


Date	1	2	3	4	200 Pricing
31-Jan-05	0	0	0	0	0
25-Jan-06	0	0	0	0	0
25-Jan-07	0	0	0	0	0
25-Jan-08	0	0	0	0	0
25-Jan-09	0	0	0	0	0
25-Jan-10	0	0	0	0	0
25-Jan-11	0	0	0	0	0
25-Jan-12	0	0	0	0	0
25-Jan-13	0	0	0	0	0
25-Jan-14	0	0	0	0	0
25-Jan-15	0	0	0	0	0
25-Jan-16	0	0	0	0	0
25-Jan-17	0	0	0	0	0
25-Jan-18	0	0	0	0	0
25-Jan-19	0	0	0	0	0
25-Jan-20	0	0	0	0	0
25-Jan-21	0	0	0	0	0
25-Jan-22	0	0	0	0	0
25-Jan-23	0	0	0	0	0
25-Jan-24	0	0	0	0	0
25-Jan-25	0	0	0	0	0
25-Jan-26	0	0	0	0	0
25-Jan-27	0	0	0	0	0
25-Jan-28	0	0	0	0	0
25-Jan-29	0	0	0	0	0
25-Jan-30	0	0	0	0	0
25-Jan-31	0	0	0	0	0
25-Jan-32	0	0	0	0	0
25-Jan-33	0	0	0	0	0
25-Jan-34	0	0	0	0	0
25-Jan-35	0	0	0	0	0

WAL	NA	NA	NA	NA	NA
Principal Window

Prepay	0 PSA	150 PSA	300 PSA	450 PSA	600 PSA


Disclaimer:

GSR05-2F-3 - Dec - Class-3AS


Date	1	2	3	4	200 Pricing
31-Jan-05	100	100	100	100	100
25-Jan-06	99	96	93	90	87
25-Jan-07	97	88	78	70	61
25-Jan-08	96	77	61	47	34
25-Jan-09	94	68	47	30	16
25-Jan-10	92	59	35	17	5
25-Jan-11	90	52	27	10	*
25-Jan-12	89	46	20	5	0
25-Jan-13	87	40	15	3	0
25-Jan-14	85	36	12	2	0
25-Jan-15	83	32	10	1	0
25-Jan-16	80	28	8	1	0
25-Jan-17	78	25	6	1	0
25-Jan-18	75	22	5	*	0
25-Jan-19	73	19	4	*	0
25-Jan-20	70	17	3	*	0
25-Jan-21	67	15	2	*	0
25-Jan-22	64	13	2	*	0
25-Jan-23	60	11	1	*	0
25-Jan-24	57	9	1	*	0
25-Jan-25	53	8	1	*	0
25-Jan-26	49	7	1	*	0
25-Jan-27	44	5	*	*	0
25-Jan-28	40	4	*	*	0
25-Jan-29	35	4	*	*	0
25-Jan-30	30	3	*	*	0
25-Jan-31	24	2	*	*	0
25-Jan-32	18	1	*	*	0
25-Jan-33	12	1	*	*	0
25-Jan-34	5	*	*	*	0
25-Jan-35	0	0	0	0	0

WAL	18.96	8.4	4.85	3.31	2.56
Principal Window	Feb05-Oct34	Feb05-Oct34	Feb05-Oct34	Feb05-Oct34	Feb05-Feb11

Prepay	0 PSA	150 PSA	300 PSA	450 PSA	600 PSA


Disclaimer:

GSR05-2F-3 - Dec - Class-SNR


Date	1	2	3	4	200 Pricing
31-Jan-05	100	100	100	100	100
25-Jan-06	99	96	94	91	88
25-Jan-07	97	89	81	73	65
25-Jan-08	96	80	65	52	40
25-Jan-09	95	71	52	37	25
25-Jan-10	93	63	41	26	15
25-Jan-11	91	57	33	18	9
25-Jan-12	89	50	26	13	5
25-Jan-13	88	45	21	9	3
25-Jan-14	86	40	17	6	2
25-Jan-15	83	35	13	4	1
25-Jan-16	81	31	11	3	1
25-Jan-17	79	28	9	2	*
25-Jan-18	76	24	7	2	*
25-Jan-19	73	21	5	1	*
25-Jan-20	71	19	4	1	*
25-Jan-21	67	16	3	1	*
25-Jan-22	64	14	3	*	*
25-Jan-23	61	12	2	*	*
25-Jan-24	57	10	2	*	*
25-Jan-25	53	9	1	*	*
25-Jan-26	49	7	1	*	*
25-Jan-27	45	6	1	*	*
25-Jan-28	40	5	*	*	*
25-Jan-29	35	4	*	*	*
25-Jan-30	30	3	*	*	*
25-Jan-31	24	2	*	*	*
25-Jan-32	18	2	*	*	*
25-Jan-33	12	1	*	*	*
25-Jan-34	5	*	*	*	*
25-Jan-35	0	0	0	0	0

WAL	19.1	8.93	5.45	3.91	3.07
Principal Window	Feb05-Oct34	Feb05-Oct34	Feb05-Oct34	Feb05-Oct34	Feb05-Oct34

Prepay	0 PSA	150 PSA	300 PSA	450 PSA	600 PSA


Disclaimer:

GSR05-2F-3 - Dec - COLLAT


Date	1	2	3	4	200 Pricing
31-Jan-05	100	100	100	100	100
25-Jan-06	99	96	94	91	89
25-Jan-07	97	89	81	73	66
25-Jan-08	96	80	66	53	42
25-Jan-09	95	72	53	38	26
25-Jan-10	93	64	43	27	17
25-Jan-11	91	57	34	20	10
25-Jan-12	89	51	28	14	7
25-Jan-13	88	46	22	10	4
25-Jan-14	86	40	18	7	3
25-Jan-15	83	36	14	5	2
25-Jan-16	81	32	11	4	1
25-Jan-17	79	28	9	3	1
25-Jan-18	76	25	7	2	*
25-Jan-19	73	22	6	1	*
25-Jan-20	71	19	4	1	*
25-Jan-21	67	16	3	1	*
25-Jan-22	64	14	3	*	*
25-Jan-23	61	12	2	*	*
25-Jan-24	57	11	2	*	*
25-Jan-25	53	9	1	*	*
25-Jan-26	49	7	1	*	*
25-Jan-27	45	6	1	*	*
25-Jan-28	40	5	1	*	*
25-Jan-29	35	4	*	*	*
25-Jan-30	30	3	*	*	*
25-Jan-31	24	2	*	*	*
25-Jan-32	18	2	*	*	*
25-Jan-33	12	1	*	*	*
25-Jan-34	5	*	*	*	*
25-Jan-35	0	0	0	0	0

WAL	19.1	9.03	5.57	4.03	3.19
Principal Window	Feb05-Oct34	Feb05-Oct34	Feb05-Oct34	Feb05-Oct34	Feb05-Oct34

Prepay	0 PSA	150 PSA	300 PSA	450 PSA	600 PSA


Disclaimer:

GSR05-2F-3 - Stack Price/Yield

Settle	1/31/2005
First Payment	2/25/2005

	1	2	3	4	200 Pricing
COLLAT
Price	100	100	100	100	100
Yield	6.03555	6.00720	5.97775	5.94938	5.92249
WAL	19.10	9.03	5.57	4.03	3.19
Mod Durn	10.42	6.10	4.26	3.30	2.72
Mod Convexity	1.734	0.665	0.325	0.191	0.126
Principal Window	Feb05 - Oct34	Feb05 - Oct34	Feb05 - Oct34	Feb05 - Oct34	Feb05 - Oct34
3NAS
Price	100	100	100	100	100
Yield	6.03777	6.02758	6.02008	6.01440	6.00473
WAL	20.35	13.69	10.83	9.33	7.61
Mod Durn	11.03	8.68	7.51	6.81	5.88
Mod Convexity	1.858	1.109	0.788	0.624	0.446
Principal Window	Feb10 - Oct34	Feb10 - Oct34	Feb10 - Oct34	Feb10 - Oct34	Feb10 - Oct34
3A1
Price	100	100	100	100	100
Yield	6.03248	5.98301	5.93140	5.88926	5.85389
WAL	16.81	5.78	3.36	2.51	2.07
Mod Durn	9.67	4.50	2.89	2.23	1.88
Mod Convexity	1.486	0.328	0.127	0.075	0.053
Principal Window	Feb05 - Jan32	Feb05 - Apr19	Feb05 - May12	Feb05 - Dec09	Feb05 - Dec08
3A2
Price	100	100	100	100	100
Yield	6.04422	6.03828	6.02249	5.99781	5.97106
WAL	28.40	19.88	11.42	6.79	4.70
Mod Durn	13.30	11.18	7.85	5.35	3.98
Mod Convexity	2.742	1.807	0.846	0.373	0.195
Principal Window	Jan32 - Oct34	Apr19 - Oct34	May12 - Oct34	Dec09 - Oct34	Dec08 - Feb11
3SUB
Price	100	100	100	100	100
Yield	6.03555	6.02504	6.01745	6.01191	6.00764
WAL	19.10	12.93	10.29	8.95	8.14
Mod Durn	10.42	8.25	7.17	6.54	6.13
Mod Convexity	1.734	1.040	0.744	0.596	0.509
Principal Window	Feb05 - Oct34	Feb05 - Oct34	Feb05 - Oct34	Feb05 - Oct34	Feb05 - Oct34
Prepay	0 PSA	150 PSA	300 PSA	450 PSA	600 PSA


Disclaimer:

--------------------------------------------------

$ VERSION: 3.01 (BLOOMBERG CMO BOND FILE)

--------------------------------------------------

$ DEAL: GSR05-2F-3

$ PRICING: 300 PSA

$ SETTLEMENT: 20050131

------------------------------------------

$ BLOCK: 1

!{ TRANCHE NAME: 3NAS }

$ ORIGINAL_AMOUNT: 19664000.00

$ CURRENT_FACTOR: 1.000000000

$ CURRENT_COUPON: 6

$ PRINCIPAL_FREQ: 12

$ PAYMENT_DELAY: 24

$ DATED_DATE: 20050101

$ FIRST_PAYMENT_DATE: 20050225

$ NEXT_PAYMENT_DATE: 20050225

$ ACCRUAL_METHOD: THIRTY_360

--------------------------------------------------

$ BLOCK: 2

!{ TRANCHE NAME: 3A1 }

$ ORIGINAL_AMOUNT: 144100000.00

$ CURRENT_FACTOR: 1.000000000

$ CURRENT_COUPON: 6

$ PRINCIPAL_FREQ: 12

$ PAYMENT_DELAY: 24

$ DATED_DATE: 20050101

$ FIRST_PAYMENT_DATE: 20050225

$ NEXT_PAYMENT_DATE: 20050225

$ ACCRUAL_METHOD: THIRTY_360

--------------------------------------------------

$ BLOCK: 3

!{ TRANCHE NAME: 3A2 }

$ ORIGINAL_AMOUNT: 32874000.00

$ CURRENT_FACTOR: 1.000000000

$ CURRENT_COUPON: 6

$ PRINCIPAL_FREQ: 12

$ PAYMENT_DELAY: 24

$ DATED_DATE: 20050101

$ FIRST_PAYMENT_DATE: 20050225

$ NEXT_PAYMENT_DATE: 20050225

$ ACCRUAL_METHOD: THIRTY_360

--------------------------------------------------

$ BLOCK: 4

!{ TRANCHE NAME: 3SUB }

$ ORIGINAL_AMOUNT: 5042316.84

$ CURRENT_FACTOR: 1.000000000

$ CURRENT_COUPON: 6

$ PRINCIPAL_FREQ: 12

$ PAYMENT_DELAY: 24

$ DATED_DATE: 20050101

$ FIRST_PAYMENT_DATE: 20050225

$ NEXT_PAYMENT_DATE: 20050225

$ ACCRUAL_METHOD: THIRTY_360

--------------------------------------------------

$ TRANCHE: 1

$ NAME: "3NAS"

$ CSORT: 1

$ TYPE: NAS

$ RECORD_DELAY: 24

$ COMPOSITION: BLOCK: 1 PRIN: 100.000000000 INT: 100.000000000

--------------------------------------------------

$ TRANCHE: 2

$ NAME: "3A1"

$ CSORT: 2

$ TYPE:

$ RECORD_DELAY: 24

$ COMPOSITION: BLOCK: 2 PRIN: 100.000000000 INT: 100.000000000

--------------------------------------------------

$ TRANCHE: 3

$ NAME: "3A2"

$ CSORT: 3

$ TYPE:

$ RECORD_DELAY: 24

$ COMPOSITION: BLOCK: 3 PRIN: 100.000000000 INT: 100.000000000

--------------------------------------------------

$ TRANCHE: 4

$ NAME: "3SUB"

$ CSORT: 4

$ TYPE: CSTR,SUB

$ RECORD_DELAY: 24

$ COMPOSITION: BLOCK: 4 PRIN: 100.000000000 INT: 100.000000000

--------------------------------------------------

$ END_TRANCHES:

--------------------------------------------------

END OF BOND FILE

***************************************************

$ VERSION: 3.03 (BLOOMBERG CMO COLLATERAL FILE)

---------------------------------------------------

$ AGENCY_LIST: Type Factor Date P/Y Delay BV Delay

WHOLE 20050101 55 54

---------------------------------------------------

$ ASSUMED_POOLS:

--------------------------------------------------------------------------------

!G Pool Number Pool Type NET-CPN CURR--FACT ORIG--BALANCE PY-FEE BV-FEE

PY/BV/BLN-W AGE

--------------------------------------------------------------------------------

M 1 WHOLE XX/XX 6.000000000 1.00000000 201680316.84 0.000000000 0.000000000 357

357 357 2