8-K 1 arm05003_10505.txt UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington D. C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 25, 2005 ADJUSTABLE RATE MORTGAGE TRUST Adjustable Rate Mortgage-Backed P/T Cert, Series 2005-3 Trust (Exact name of registrant as specified in its charter) New York (governing law of 333-120966-09 54-2169421 Pooling and Servicing Agreement) (Commission 54-2169422 (State or other File Number) 54-2169423 jurisdiction 54-2169424 of Incorporation) IRS EIN C/O Wells Fargo Bank, N.A. 9062 Old Annapolis Road Columbia, MD 21045 (Address of principal executive offices) (Zip Code) Registrant's telephone number, including area code: (410) 884-2000 (Former name or former address, if changed since last report) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): [ ] Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) [ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) [ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act(17 CFR 240.14d-2(b)) [ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act(17 CFR 240.13e-4(c)) ITEM 8.01 Other Events On May 25, 2005 a distribution was made to holders of ADJUSTABLE RATE MORTGAGE TRUST, Adjustable Rate Mortgage-Backed P/T Cert, Series 2005-3 Trust. ITEM 9.01 Financial Statements and Exhibits (c) Exhibits Exhibit Number Description EX-99.1 Monthly report distributed to holders of Adjustable Rate Mortgage-Backed P/T Cert, Series 2005-3 Trust, relating to the May 25, 2005 distribution. Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ADJUSTABLE RATE MORTGAGE TRUST Adjustable Rate Mortgage-Backed P/T Cert, Series 2005-3 Trust (Registrant) By: Wells Fargo Bank, N.A. as Trust Administrator By: /s/ Beth Belfield as Officer By: Beth Belfield as Officer Date: 5/26/2005 INDEX TO EXHIBITS Exhibit Number Description EX-99.1 Monthly report distributed to holders of Adjustable Rate Mortgage-Backed P/T Cert, Series 2005-3 Trust, relating to the May 25, 2005 distribution. EX-99.1

~~UNITED~~Credit ~~STATES~~Suisse First Boston Mortgage Securities Corp. Adjustable Rate Mortgage-Backed P/T Cert Record Date: 4/29/2005 Distribution Date: 5/25/2005 Credit Suisse First Boston Mortgage Securities Corp. Adjustable Rate Mortgage-Backed P/T Cert Series 2005-3 Contact: Customer Service - CTSLink Wells Fargo Bank, N.A. Securities Administration Services 7485 New Horizon Way Frederick, MD 21703 Telephone: (301) 815-6600 Fax: (301) 815-6660 Certificateholder Distribution Summary Certificate Certificate Beginning Class Pass-Through Certificate Interest Principal Class CUSIP Description Rate Balance Distribution Distribution 1A1 007036HU3 SEN 5.07086% 91,305,973.92 385,833.13 1,083,242.25 1A2 007036KA3 SEN 5.07086% 10,150,035.36 42,891.17 120,418.71 AR 007036JT4 SEN 4.64614% 0.00 0.00 0.00 ARL 007036JU1 SEN 4.64614% 0.00 0.00 0.00 2A1 007036HV1 SEN 4.71915% 189,090,288.87 743,620.62 2,724,267.49 3A1 007036HW9 SEN 5.03398% 41,899,335.73 175,767.16 292,299.77 4A1 007036HX7 SEN 5.26827% 47,289,358.08 207,611.10 234,873.48 5A1 007036HY5 SEN 4.66751% 117,630,897.02 457,536.14 2,101,081.99 6A1 007036HZ2 SEN 4.95104% 139,304,248.52 574,750.60 620,014.31 7A1 007036JA5 SEN 5.08913% 50,711,753.96 215,065.69 738,679.17 CB1 007036JM9 SUB 4.89342% 14,040,895.73 57,256.67 4,086.91 CB2 007036JN7 SUB 4.89342% 9,607,191.74 39,176.69 2,796.38 CB3 007036JP2 SUB 4.89342% 2,586,244.02 10,546.32 752.78 CB4 007036JQ0 SUB 4.89342% 2,217,351.85 9,042.03 645.41 CB5 007036JR8 SUB 4.89342% 2,586,244.02 10,546.32 752.78 CB6 007036JS6 SUB 4.89342% 2,956,135.90 12,054.68 860.45 CB7 007036JV9 SUB 4.89342% 2,217,351.85 9,042.03 645.41 CB8 007036JW7 SUB 4.89342% 2,956,135.90 12,054.68 860.45 CB9 007036JX5 SUB 4.89342% 2,217,115.70 9,041.07 645.34 8A1-1 007036JB3 SEN 3.24500% 77,766,207.74 210,292.79 858,292.08 8A1-2 007036JC1 SEN 3.31000% 19,443,984.87 53,632.99 214,599.87 8A2 007036JD9 SEN 3.26000% 117,454,314.53 319,084.23 3,885,825.66 8A3-1 007036JE7 SEN 3.23000% 65,407,637.45 176,055.56 2,432,898.61 8A3-2 007036JF4 SEN 3.34000% 8,130,000.00 22,628.50 0.00 8A4 007036JG2 SEN 3.30000% 21,222,962.17 58,363.15 702,134.54 8M1 007036JH0 MEZ 3.47000% 14,660,000.00 42,391.83 0.00 8M2 007036JJ6 MEZ 3.82000% 8,105,000.00 25,800.92 0.00 8M3 007036JK3 MEZ 4.27000% 4,140,000.00 14,731.50 0.00 8M4 007036JL1 MEZ 5.12000% 1,727,000.00 7,368.53 0.00 8X 007036JY3 SEN 0.00000% 571,149.49 0.00 0.00 P 007036JZ0 SEN 0.00000% 0.00 68,761.79 0.00 Totals 1,067,394,814.42 3,970,947.89 16,020,673.84

~~SECURITIES~~Certificateholder ~~AND~~Distribution ~~EXCHANGE~~Summary ~~COMMISSION~~(continued) Current Ending Cumulative Realized Certificate Total Realized Class Loss Balance Distribution Losses 1A1 0.00 90,222,731.67 1,469,075.38 0.00 1A2 0.00 10,029,616.66 163,309.88 0.00 AR 0.00 0.00 0.00 0.00 ARL 0.00 0.00 0.00 0.00 2A1 0.00 186,366,021.38 3,467,888.11 0.00 3A1 0.00 41,607,035.96 468,066.93 0.00 4A1 0.00 47,054,484.60 442,484.58 0.00 5A1 0.00 115,529,815.03 2,558,618.13 0.00 6A1 0.00 138,684,234.21 1,194,764.91 0.00 7A1 0.00 49,973,074.79 953,744.86 0.00 CB1 0.00 14,036,808.82 61,343.58 0.00 CB2 0.00 9,604,395.36 41,973.07 0.00 CB3 0.00 2,585,491.24 11,299.10 0.00 CB4 0.00 2,216,706.44 9,687.44 0.00 CB5 0.00 2,585,491.24 11,299.10 0.00 CB6 0.00 2,955,275.45 12,915.13 0.00 CB7 0.00 2,216,706.44 9,687.44 0.00 CB8 0.00 2,955,275.45 12,915.13 0.00 CB9 0.00 2,216,470.36 9,686.41 0.00 8A1-1 0.00 76,907,915.66 1,068,584.87 0.00 8A1-2 0.00 19,229,384.99 268,232.86 0.00 8A2 0.00 113,568,488.87 4,204,909.89 0.00 8A3-1 0.00 62,974,738.84 2,608,954.17 0.00 8A3-2 0.00 8,130,000.00 22,628.50 0.00 8A4 0.00 20,520,827.63 760,497.69 0.00 8M1 0.00 14,660,000.00 42,391.83 0.00 8M2 0.00 8,105,000.00 25,800.92 0.00 8M3 0.00 4,140,000.00 14,731.50 0.00 8M4 0.00 1,727,000.00 7,368.53 0.00 8X 0.00 1,290,124.09 0.00 0.00 P 0.00 0.00 68,761.79 0.00 Totals 0.00 1,052,093,115.18 19,991,621.73 0.00 All distributions required by the Pooling and Servicing Agreement have been calculated by the Certificate Administrator on behalf of the Trustee.

~~Washington~~Principal Distribution Statement Original Beginning Scheduled Unscheduled Face Certificate Principal Principal Realized Class Amount Balance Distribution Distribution Accretion Loss (1) 1A1 94,715,000.00 D91,305,973.C92 13,965.35 ~~20549~~1,069,276.89 0.00 0.00 1A2 10,529,000.00 10,150,035.36 1,552.46 118,866.25 0.00 0.00 AR 50.00 0.00 0.00 0.00 0.00 0.00 ARL 50.00 0.00 0.00 0.00 0.00 0.00 2A1 192,889,000.00 189,090,288.87 65,721.71 2,658,545.78 0.00 0.00 3A1 41,920,000.00 41,899,335.73 17,906.54 274,393.23 0.00 0.00 4A1 47,299,000.00 47,289,358.08 6,193.94 228,679.54 0.00 0.00 5A1 118,745,000.00 117,630,897.02 22,181.08 2,078,900.91 0.00 0.00 6A1 140,344,000.00 139,304,248.52 53,284.05 566,730.26 0.00 0.00 7A1 51,374,000.00 50,711,753.96 19,545.88 719,133.29 0.00 0.00 CB1 14,045,000.00 14,040,895.73 4,086.91 0.00 0.00 0.00 CB2 9,610,000.00 9,607,191.74 2,796.38 0.00 0.00 0.00 CB3 2,587,000.00 2,586,244.02 752.78 0.00 0.00 0.00 CB4 2,218,000.00 2,217,351.85 645.41 0.00 0.00 0.00 CB5 2,587,000.00 2,586,244.02 752.78 0.00 0.00 0.00 CB6 2,957,000.00 2,956,135.90 860.45 0.00 0.00 0.00 CB7 2,218,000.00 2,217,351.85 645.41 0.00 0.00 0.00 CB8 2,957,000.00 2,956,135.90 860.45 0.00 0.00 0.00 CB9 2,217,763.78 2,217,115.70 645.34 0.00 0.00 0.00 8A1-1 79,910,000.00 77,766,207.74 0.00 858,292.08 0.00 0.00 8A1-2 19,980,000.00 19,443,984.87 0.00 214,599.87 0.00 0.00 8A2 119,790,000.00 117,454,314.53 0.00 3,885,825.66 0.00 0.00 8A3-1 66,870,000.00 65,407,637.45 0.00 2,432,898.61 0.00 0.00 8A3-2 8,130,000.00 8,130,000.00 0.00 0.00 0.00 0.00 8A4 21,645,000.00 21,222,962.17 0.00 702,134.54 0.00 0.00 8M1 14,660,000.00 14,660,000.00 0.00 0.00 0.00 0.00 8M2 8,105,000.00 8,105,000.00 0.00 0.00 0.00 0.00 8M3 4,140,000.00 4,140,000.00 0.00 0.00 0.00 0.00 8M4 1,727,000.00 1,727,000.00 0.00 0.00 0.00 0.00 8X 0.01 571,149.49 0.00 0.00 0.00 0.00 P 0.00 0.00 0.00 0.00 0.00 0.00 Totals 1,084,168,863.79 1,067,394,814.42 212,396.92 15,808,276.91 0.00 0.00 (1) Amount Does Not Include Excess Special Hazard, Bankruptcy, or Fraud Losses Unless Otherwise Disclosed. Please Refer to the Prospectus Supplement for a Full Description.

~~FORM~~Principal 8Distribution Statement (continued) Total Ending Ending Total Principal Certificate Certificate Principal Class Reduction Balance Percentage Distribution 1A1 1,083,242.25 90,222,731.67 0.95257068 1,083,242.25 1A2 120,418.71 10,029,616.66 0.95257068 120,418.71 AR 0.00 0.00 0.00000000 0.00 ARL 0.00 0.00 0.00000000 0.00 2A1 2,724,267.49 186,366,021.38 0.96618273 2,724,267.49 3A1 292,299.77 41,607,035.96 0.99253425 292,299.77 4A1 234,873.48 47,054,484.60 0.99483043 234,873.48 5A1 2,101,081.99 115,529,815.03 0.97292362 2,101,081.99 6A1 620,014.31 138,684,234.21 0.98817359 620,014.31 7A1 738,679.17 49,973,074.79 0.97273085 738,679.17 CB1 4,086.91 14,036,808.82 0.99941679 4,086.91 CB2 2,796.38 9,604,395.36 0.99941679 2,796.38 CB3 752.78 2,585,491.24 0.99941679 752.78 CB4 645.41 2,216,706.44 0.99941679 645.41 CB5 752.78 2,585,491.24 0.99941679 752.78 CB6 860.45 2,955,275.45 0.99941679 860.45 CB7 645.41 2,216,706.44 0.99941679 645.41 CB8 860.45 2,955,275.45 0.99941679 860.45 CB9 645.34 2,216,470.36 0.99941679 645.34 8A1-K1 858,292.08 76,907,915.66 0.96243168 858,292.08 8A1-2 214,599.87 19,229,384.99 0.96243168 214,599.87 8A2 3,885,825.66 113,568,488.87 0.94806318 3,885,825.66 8A3-1 2,432,898.61 62,974,738.84 0.94174875 2,432,898.61 8A3-2 0.00 8,130,000.00 1.00000000 0.00 8A4 702,134.54 20,520,827.63 0.94806318 702,134.54 8M1 0.00 14,660,000.00 1.00000000 0.00 8M2 0.00 8,105,000.00 1.00000000 0.00 8M3 0.00 4,140,000.00 1.00000000 0.00 8M4 0.00 1,727,000.00 1.00000000 0.00 8X 0.00 1,290,124.00 29012,409.00000000 0.00 P 0.00 0.00 0.00000000 0.00 Totals 16,020,673.84 1,052,093,115.18 0.97041443 16,020,673.84

~~CURRENT~~Principal ~~REPORT~~Distribution Factors Statement Original Beginning Scheduled Unscheduled Face Certificate Principal Principal Class (2) Amount Balance Distribution Distribution Accretion 1A1 94,715,000.00 964.00753756 0.14744602 11.28941445 0.00000000 1A2 10,529,000.00 964.00753728 0.14744610 11.28941495 0.00000000 AR 50.00 0.00000000 0.00000000 0.00000000 0.00000000 ARL 50.00 0.00000000 0.00000000 0.00000000 0.00000000 2A1 192,889,000.00 980.30623244 0.34072295 13.78277548 0.00000000 3A1 41,920,000.00 999.50705463 0.42715983 6.54564003 0.00000000 4A1 47,299,000.00 999.79614960 0.13095287 4.83476479 0.00000000 5A1 118,745,000.00 990.61768512 0.18679591 17.50727113 0.00000000 6A1 140,344,000.00 992.59140768 0.37966746 4.03815097 0.00000000 7A1 51,374,000.00 987.10931522 0.38046249 13.99800074 0.00000000 CB1 14,045,000.00 999.70777714 0.29098683 0.00000000 0.00000000 CB2 9,610,000.00 999.70777732 0.29098647 0.00000000 0.00000000 CB3 2,587,000.00 999.70777735 0.29098570 0.00000000 0.00000000 CB4 2,218,000.00 999.70777728 0.29098738 0.00000000 0.00000000 CB5 2,587,000.00 999.70777735 0.29098570 0.00000000 0.00000000 CB6 2,957,000.00 999.70777815 0.29098749 0.00000000 0.00000000 CB7 2,218,000.00 999.70777728 0.29098738 0.00000000 0.00000000 CB8 2,957,000.00 999.70777815 0.29098749 0.00000000 0.00000000 CB9 2,217,763.78 999.70777771 0.29098681 0.00000000 0.00000000 8A1-1 79,910,000.00 973.17241572 0.00000000 10.74073433 0.00000000 8A1-2 19,980,000.00 973.17241592 0.00000000 10.74073423 0.00000000 8A2 119,790,000.00 980.50183262 0.00000000 32.43864813 0.00000000 8A3-1 66,870,000.00 978.13126140 0.00000000 36.38251249 0.00000000 8A3-2 8,130,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 8A4 21,645,000.00 980.50183276 0.00000000 32.43864819 0.00000000 8M1 14,660,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 8M2 8,105,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 8M3 4,140,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 8M4 1,727,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 8X 0.01 0.00000000 0.00000000 0.00000000 0.00000000 P 0.00 0.00000000 0.00000000 0.00000000 0.00000000

~~Pursuant~~Principal toDistribution ~~Section~~Factors 13Statement OR(continued) 15Total Ending Ending Total Realized Principal Certificate Certificate Principal Class Loss (d3) ofReduction Balance Percentage Distribution 1A1 0.00000000 11.43686058 952.57067698 0.95257068 11.43686058 1A2 0.00000000 11.43686105 952.57067718 0.95257068 11.43686105 AR 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 ARL 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 2A1 0.00000000 14.12349844 966.18273401 0.96618273 14.12349844 3A1 0.00000000 6.97279986 992.53425477 0.99253425 6.97279986 4A1 0.00000000 4.96571767 994.83043193 0.99483043 4.96571767 5A1 0.00000000 17.69406703 972.92361809 0.97292362 17.69406703 6A1 0.00000000 4.41781843 988.17358925 0.98817359 4.41781843 7A1 0.00000000 14.37846323 972.73085199 0.97273085 14.37846323 CB1 0.00000000 0.29098683 999.41679032 0.99941679 0.29098683 CB2 0.00000000 0.29098647 999.41679084 0.99941679 0.29098647 CB3 0.00000000 0.29098570 999.41679165 0.99941679 0.29098570 CB4 0.00000000 0.29098738 999.41678990 0.99941679 0.29098738 CB5 0.00000000 0.29098570 999.41679165 0.99941679 0.29098570 CB6 0.00000000 0.29098749 999.41679067 0.99941679 0.29098749 CB7 0.00000000 0.29098738 999.41678990 0.99941679 0.29098738 CB8 0.00000000 0.29098749 999.41679067 0.99941679 0.29098749 CB9 0.00000000 0.29098681 999.41679091 0.99941679 0.29098681 8A1-1 0.00000000 10.74073433 962.43168139 0.96243168 10.74073433 8A1-2 0.00000000 10.74073423 962.43168118 0.96243168 10.74073423 8A2 0.00000000 32.43864813 948.06318449 0.94806318 32.43864813 8A3-1 0.00000000 36.38251249 941.74874892 0.94174875 36.38251249 8A3-2 0.00000000 0.00000000 1,000.00000000 1.00000000 0.00000000 8A4 0.00000000 32.43864819 948.06318457 0.94806318 32.43864819 8M1 0.00000000 0.00000000 1,000.00000000 1.00000000 0.00000000 8M2 0.00000000 0.00000000 1,000.00000000 1.00000000 0.00000000 8M3 0.00000000 0.00000000 1,000.00000000 1.00000000 0.00000000 8M4 0.00000000 0.00000000 1,000.00000000 1.00000000 0.00000000 8X 0.00000000 0.00000000 0.00000000 29012409.00000000 0.00000000 P 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 (3) Amount Does Not Include Excess Special Hazard, Bankruptcy, or Fraud Losses Unless Otherwise Disclosed. Please Refer to the Prospectus Supplement for a Full Description.

~~The~~Interest ~~Securities~~Distribution ~~Exchange~~Statement ~~Act~~Beginning Payment of ~~1934~~Original Current Certificate/ Current Unpaid Current Face Certificate Notional Accrued Interest Interest Class Amount Rate Balance Interest Shortfall Shortfall 1A1 94,715,000.00 5.07086% 91,305,973.92 385,833.13 0.00 0.00 1A2 10,529,000.00 5.07086% 10,150,035.36 42,891.17 0.00 0.00 AR 50.00 4.64614% 0.00 0.00 0.00 0.00 ARL 50.00 4.64614% 0.00 0.00 0.00 0.00 2A1 192,889,000.00 4.71915% 189,090,288.87 743,620.62 0.00 0.00 3A1 41,920,000.00 5.03398% 41,899,335.73 175,767.16 0.00 0.00 4A1 47,299,000.00 5.26827% 47,289,358.08 207,611.09 0.00 0.00 5A1 118,745,000.00 4.66751% 117,630,897.02 457,536.14 0.00 0.00 6A1 140,344,000.00 4.95104% 139,304,248.52 574,750.61 0.00 0.00 7A1 51,374,000.00 5.08913% 50,711,753.96 215,065.69 0.00 0.00 CB1 14,045,000.00 4.89342% 14,040,895.73 57,256.67 0.00 0.00 CB2 9,610,000.00 4.89342% 9,607,191.74 39,176.69 0.00 0.00 CB3 2,587,000.00 4.89342% 2,586,244.02 10,546.32 0.00 0.00 CB4 2,218,000.00 4.89342% 2,217,351.85 9,042.03 0.00 0.00 CB5 2,587,000.00 4.89342% 2,586,244.02 10,546.32 0.00 0.00 CB6 2,957,000.00 4.89342% 2,956,135.90 12,054.68 0.00 0.00 CB7 2,218,000.00 4.89342% 2,217,351.85 9,042.03 0.00 0.00 CB8 2,957,000.00 4.89342% 2,956,135.90 12,054.68 0.00 0.00 CB9 2,217,763.78 4.89342% 2,217,115.70 9,041.07 0.00 0.00 8A1-1 79,910,000.00 3.24500% 77,766,207.74 210,292.79 0.00 0.00 8A1-2 19,980,000.00 3.31000% 19,443,984.87 53,632.99 0.00 0.00 8A2 119,790,000.00 3.26000% 117,454,314.53 319,084.22 0.00 0.00 8A3-1 66,870,000.00 3.23000% 65,407,637.45 176,055.56 0.00 0.00 8A3-2 8,130,000.00 3.34000% 8,130,000.00 22,628.50 0.00 0.00 8A4 21,645,000.00 3.30000% 21,222,962.17 58,363.15 0.00 0.00 8M1 14,660,000.00 3.47000% 14,660,000.00 42,391.83 0.00 0.00 8M2 8,105,000.00 3.82000% 8,105,000.00 25,800.92 0.00 0.00 8M3 4,140,000.00 4.27000% 4,140,000.00 14,731.50 0.00 0.00 8M4 1,727,000.00 5.12000% 1,727,000.00 7,368.53 0.00 0.00 8X 0.01 0.00000% 338,628,256.24 0.00 0.00 0.00 P 0.00 0.00000% 0.00 0.00 0.00 0.00 Totals 1,084,168,863.79 3,902,186.09 0.00 0.00

~~Date~~Interest ofDistribution ~~Report~~Statement (~~Date~~continued) ofRemaining ~~earliest~~Ending ~~event~~Non-Supported ~~reported~~Total Unpaid Certificate/ Interest Realized Interest Interest Notional Class Shortfall Losses (4) ~~April~~Distribution Shortfall Balance 1A1 0.00 0.00 385,833.13 0.00 90,222,731.67 1A2 0.00 0.00 42,891.17 0.00 10,029,616.66 AR 0.00 0.00 0.00 0.00 0.00 ARL 0.00 0.00 0.00 0.00 0.00 2A1 0.00 0.00 743,620.62 0.00 186,366,021.38 3A1 0.00 0.00 175,767.16 0.00 41,607,035.96 4A1 0.00 0.00 207,611.10 0.00 47,054,484.60 5A1 0.00 0.00 457,536.14 0.00 115,529,815.03 6A1 0.00 0.00 574,750.60 0.00 138,684,234.21 7A1 0.00 0.00 215,065.69 ~~2005~~0.00 49,973,074.79 CB1 0.00 0.00 57,256.67 0.00 14,036,808.82 CB2 0.00 0.00 39,176.69 0.00 9,604,395.36 CB3 0.00 0.00 10,546.32 0.00 2,585,491.24 CB4 0.00 0.00 9,042.03 0.00 2,216,706.44 CB5 0.00 0.00 10,546.32 0.00 2,585,491.24 CB6 0.00 0.00 12,054.68 0.00 2,955,275.45 CB7 0.00 0.00 9,042.03 0.00 2,216,706.44 CB8 0.00 0.00 12,054.68 0.00 2,955,275.45 CB9 0.00 0.00 9,041.07 0.00 2,216,470.36 8A1-1 0.00 0.00 210,292.79 0.00 76,907,915.66 8A1-2 0.00 0.00 53,632.99 0.00 19,229,384.99 8A2 0.00 0.00 319,084.23 0.00 113,568,488.87 8A3-1 0.00 0.00 176,055.56 0.00 62,974,738.84 8A3-2 0.00 0.00 22,628.50 0.00 8,130,000.00 8A4 0.00 0.00 58,363.15 0.00 20,520,827.63 8M1 0.00 0.00 42,391.83 0.00 14,660,000.00 8M2 0.00 0.00 25,800.92 0.00 8,105,000.00 8M3 0.00 0.00 14,731.50 0.00 4,140,000.00 8M4 0.00 0.00 7,368.53 0.00 1,727,000.00 8X 0.00 0.00 0.00 0.00 331,253,480.08 P 0.00 0.00 68,761.79 0.00 0.00 Totals 0.00 0.00 3,970,947.89 0.00 (4) Amount Does Not Include Excess Special Hazard, Bankruptcy, or Fraud Losses Unless Otherwise Disclosed. Please Refer to the Prospectus Supplement for a Full Description.

~~CREDIT~~Interest ~~SUISSE~~Distribution ~~FIRST~~Factors ~~BOSTON~~Statement ~~MORTGAGE~~Beginning ~~SECURITIES~~Payment ~~CORP~~of Original Current Certificate/ Current Unpaid Current Face Certificate Notional Accrued Interest Interest Class (5) Amount Rate Balance Interest Shortfall Shortfall 1A1 94,715,000.00 5.07086% 964.00753756 4.07362224 0.00000000 0.00000000 1A2 10,529,000.00 5.07086% 964.00753728 4.07362238 0.00000000 0.00000000 AR 50.00 4.64614% 0.00000000 0.00000000 0.00000000 0.00000000 ARL 50.00 4.64614% 0.00000000 0.00000000 0.00000000 0.00000000 2A1 192,889,000.00 4.71915% 980.30623244 3.85517380 0.00000000 0.00000000 3A1 41,920,000.00 5.03398% 999.50705463 4.19291889 0.00000000 0.00000000 4A1 47,299,000.00 5.26827% 999.79614960 4.38933360 0.00000000 0.00000000 5A1 118,745,000.00 4.66751% 990.61768512 3.85309815 0.00000000 0.00000000 6A1 140,344,000.00 4.95104% 992.59140768 4.09529877 0.00000000 0.00000000 7A1 51,374,000.00 5.08913% 987.10931522 4.18627496 0.00000000 0.00000000 CB1 14,045,000.00 4.89342% 999.70777714 4.07665860 0.00000000 0.00000000 CB2 9,610,000.00 4.89342% 999.70777732 4.07665869 0.00000000 0.00000000 CB3 2,587,000.00 4.89342% 999.70777735 4.07666022 0.00000000 0.00000000 CB4 2,218,000.00 4.89342% 999.70777728 4.07665915 0.00000000 0.00000000 CB5 2,587,000.00 4.89342% 999.70777735 4.07666022 0.00000000 0.00000000 CB6 2,957,000.00 4.89342% 999.70777815 4.07665878 0.00000000 0.00000000 CB7 2,218,000.00 4.89342% 999.70777728 4.07665915 0.00000000 0.00000000 CB8 2,957,000.00 4.89342% 999.70777815 4.07665878 0.00000000 0.00000000 CB9 2,217,763.78 4.89342% 999.70777771 4.07666050 0.00000000 0.00000000 8A1-1 79,910,000.00 3.24500% 973.17241572 2.63162045 0.00000000 0.00000000 8A1-2 19,980,000.00 3.31000% 973.17241592 2.68433383 0.00000000 0.00000000 8A2 119,790,000.00 3.26000% 980.50183262 2.66369664 0.00000000 0.00000000 8A3-1 66,870,000.00 3.23000% 978.13126140 2.63280335 0.00000000 0.00000000 8A3-2 8,130,000.00 3.34000% 1000.00000000 2.78333333 0.00000000 0.00000000 8A4 21,645,000.00 3.30000% 980.50183276 2.69638023 0.00000000 0.00000000 8M1 14,660,000.00 3.47000% 1000.00000000 2.89166644 0.00000000 0.00000000 8M2 8,105,000.00 3.82000% 1000.00000000 3.18333374 0.00000000 0.00000000 8M3 4,140,000.00 4.27000% 1000.00000000 3.55833333 0.00000000 0.00000000 8M4 1,727,000.00 5.12000% 1000.00000000 4.26666474 0.00000000 0.00000000 8X 0.01 0.00000% 0.00000000 0.00000000 0.00000000 0.00000000 P 0.00 0.00000% 0.00000000 0.00000000 0.00000000 0.00000000 (5) Per $1 denomination.

onInterest ~~behalf~~Distribution ofFactors Statement (continued) Remaining Ending Non-Supported Total Unpaid Certificate/ Interest Realized Interest Interest Notional Class Shortfall Losses (6) Distribution Shortfall Balance 1A1 0.00000000 0.00000000 4.07362224 0.00000000 952.57067698 1A2 0.00000000 0.00000000 4.07362238 0.00000000 952.57067718 AR 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 ARL 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 2A1 0.00000000 0.00000000 3.85517380 0.00000000 966.18273401 3A1 0.00000000 0.00000000 4.19291889 0.00000000 992.53425477 4A1 0.00000000 0.00000000 4.38933381 0.00000000 994.83043193 5A1 0.00000000 0.00000000 3.85309815 0.00000000 972.92361809 6A1 0.00000000 0.00000000 4.09529869 0.00000000 988.17358925 7A1 0.00000000 0.00000000 4.18627496 0.00000000 972.73085199 CB1 0.00000000 0.00000000 4.07665860 0.00000000 999.41679032 CB2 0.00000000 0.00000000 4.07665869 0.00000000 999.41679084 CB3 0.00000000 0.00000000 4.07666022 0.00000000 999.41679165 CB4 0.00000000 0.00000000 4.07665915 0.00000000 999.41678990 CB5 0.00000000 0.00000000 4.07666022 0.00000000 999.41679165 CB6 0.00000000 0.00000000 4.07665878 0.00000000 999.41679067 CB7 0.00000000 0.00000000 4.07665915 0.00000000 999.41678990 CB8 0.00000000 0.00000000 4.07665878 0.00000000 999.41679067 CB9 0.00000000 0.00000000 4.07666050 0.00000000 999.41679091 8A1-1 0.00000000 0.00000000 2.63162045 0.00000000 962.43168139 8A1-2 0.00000000 0.00000000 2.68433383 0.00000000 962.43168118 8A2 0.00000000 0.00000000 2.66369672 0.00000000 948.06318449 8A3-1 0.00000000 0.00000000 2.63280335 0.00000000 941.74874892 8A3-2 0.00000000 0.00000000 2.78333333 0.00000000 1000.00000000 8A4 0.00000000 0.00000000 2.69638023 0.00000000 948.06318457 8M1 0.00000000 0.00000000 2.89166644 0.00000000 1000.00000000 8M2 0.00000000 0.00000000 3.18333374 0.00000000 1000.00000000 8M3 0.00000000 0.00000000 3.55833333 0.00000000 1000.00000000 8M4 0.00000000 0.00000000 4.26666474 0.00000000 1000.00000000 8X 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 P 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 (6) Amount Does Not Include Excess Special Hazard, Bankruptcy,or Fraud Losses Unless Otherwise Disclosed. Please Refer to the Prospectus Supplement for a Full Description.

~~CSFB~~CERTIFICATEHOLDER ~~Adjustable~~ACCOUNT ~~Rate~~STATEMENT ~~Mortgage~~CERTIFICATE ~~Trust~~ACCOUNT ~~2005-3~~Beginning Balance 0.00 Deposits Payments of Interest and Principal 19,618,044.72 Liquidations, Insurance Proceeds, Reserve Funds 0.00 Proceeds from Repurchased Loans 0.00 Other Amounts (Servicer Advances) 0.00 Realized Loss (Gains, Subsequent Expenses & Recoveries) 0.00 Prepayment Penalties 68,761.79 Total Deposits 19,686,806.51 Withdrawals Reimbursement for Servicer Advances 0.00 Payment of Service Fee 249,240.59 Payment of Interest and Principal 19,437,565.92 Total Withdrawals (Pool Distribution Amount) 19,686,806.51 Ending Balance 0.00

~~(Exact~~PREPAYMENT/CURTAILMENT ~~name~~INTEREST ofSHORTFALL ~~registrant~~Total asPrepayment/Curtailment ~~specified~~Interest inShortfall ~~its~~0.00 ~~charter)~~Servicing Fee Support 0.00 Non-Supported Prepayment/Curtailment Interest Shortfall 0.00

Delaware		333-120966-09		13-3320910
(State or other jurisdiction of incorporation)		(Commission File Number)		(IRS Employer Identification No.)

Eleven Madison Avenue, New York, NY		10010
(Address of principal executive office)		(Zip Code)

Registrant's telephone number, including area code (212) 325-2000.

N/OTHER INFORMATION Current Period Class A ~~(Former~~Insufficient ~~name~~Funds or0.00 ~~address,~~Principal ifBalance ~~changed~~of ~~since~~Contaminated ~~last~~Properties ~~report)~~0.00 Periodic Advance 12,440.91

~~Check~~CREDIT ~~the~~ENHANCEMENT ~~appropriate~~Original ~~box~~$ ~~below~~Original if% ~~the~~Current ~~Form~~$ ~~8-K~~Current ~~filing~~% isBankruptcy ~~intended~~227,480.00 to0.02098196% ~~simultaneously~~227,480.00 ~~satisfy~~0.02425208% ~~the~~Fraud ~~filing~~14,784,238.00 ~~obligation~~1.36364652% of14,784,238.00 ~~the~~1.57617600% ~~registrant~~Special ~~under~~Hazard ~~any~~7,392,119.00 of0.68182326% ~~the~~7,392,119.00 ~~following~~0.78808800% ~~provisions~~Limit ~~(see~~of ~~General~~Subordinate's ~~Instruction~~Exposure ~~A.2.~~to ~~below):~~Certain Types of Losses

oCOLLATERAL ~~Written~~STATEMENT ~~communication~~Collateral ~~pursuant~~Description toMixed ~~Rule~~Fixed ~~425~~& ~~under~~Arm ~~the~~Weighted ~~Securities~~Average ~~Act~~Gross ~~(17~~Coupon ~~CFR~~5.433448% ~~230~~Weighted Average Net Coupon 5.~~425~~818609% Weighted Average Pass-Through Rate 5.817152% Weighted Average Maturity(Stepdown Calculation ) 357 Beginning Scheduled Collateral Loan Count 3,133 Number Of Loans Paid In Full 42 Ending Scheduled Collateral Loan Count 3,091 Beginning Scheduled Collateral Balance 953,283,117.12 Ending Scheduled Collateral Balance 937,981,417.90 Ending Actual Collateral Balance at 29-Apr-2005 938,229,103.28 Monthly P &I Constant 4,628,882.21 Special Servicing Fee 0.00 Prepayment Penalties 68,761.79 Realized Loss Amount 0.00 Cumulative Realized Loss 0.00 Scheduled Principal 312,536.71 Unscheduled Principal 14,989,162.51 Extra principal distribution Amount 718,974.60 Excess Cash Amount 718,974.60

oMiscellaneous ~~Soliciting~~Reporting ~~material~~Deliquency ~~pursuant~~Test toMet ~~Rule~~YES ~~14a-12~~Excess ~~under~~Cach ~~the~~Amount ~~Exchange~~718,974.60 ~~Act~~Extra ~~(17~~Principal ~~CFR~~Distribution ~~240~~718,974.~~14a-12)~~60 Grp 8A Net Funds Cap 5.93 Grp 8B Net Funds 5.80 Grp 8 Subordinate Net Funds Cap 5.85 Overcollateralization Amount 1,290,124.09 Overcollateralization Deficiency 434,663.47 Overcollateralization Increase 718,974.60 Overcollateralization Reduction 0.00 Target Overcollateralization 1,724,787.56 3 Month Delinquency Rate 0.000000% Step Down Date Reach NO Trigger Event NO

oGroup ~~Pre-commencement~~Level ~~communications~~Collateral ~~pursuant~~Statement toGroup ~~Rule~~One ~~14d-~~Two Three Collateral Description Mixed ARM Mixed ARM Mixed ARM Weighted Average Coupon Rate 5.031170 5.020849 5.390653 Weighted Average Net Rate 4.656170 4.714458 5.029765 Weighted Average Maturity 356 353 357 Beginning Loan Count 190 354 90 Loans Paid In Full 2~~(b)~~ ~~under~~5 ~~the~~1 ~~Exchange~~Ending ~~Act~~Loan ~~(17~~Count ~~CFR~~188 ~~240~~349 89 Beginning Scheduled Balance 99,812,154.~~14d-~~47 191,224,498.77 34,057,556.77 Ending scheduled Balance 98,607,538.70 188,496,255.47 33,764,194.71 Record Date 04/29/2005 04/29/2005 04/29/2005 Principal And Interest Constant 434,949.22 869,788.56 171,962.55 Scheduled Principal 16,472.63 69,697.52 18,968.83 Unscheduled Principal 1,188,143.14 2~~(b))~~,658,545.78 274,393.23 Scheduled Interest 418,476.59 800,091.04 152,993.72 Servicing Fees 31,191.30 48,824.50 10,242.47 Master Servicing Fees 0.00 0.00 0.00 Trustee Fee 0.00 0.00 0.00 FRY Amount 0.00 0.00 0.00 Special Hazard Fee 0.00 0.00 0.00 Other Fee 0.00 0.00 0.00 Pool Insurance Fee 0.00 0.00 0.00 Spread Fee 1 0.00 0.00 0.00 Spread Fee 2 0.00 0.00 0.00 Spread Fee 3 0.00 0.00 0.00 Net Interest 387,285.29 751,266.54 142,751.25 Realized Loss Amount 0.00 0.00 0.00 Cumulative Realized Loss 0.00 0.00 0.00 Percentage of Cumulative Losses 0.0000 0.0000 0.0000 Prepayment Penalties 0.00 0.00 0.00 Special Servicing Fee 0.00 0.00 0.00 Pass-Through Rate 4.656170 4.714458 5.029764

oGroup ~~Pre-commencement~~Level ~~communications~~Collateral ~~pursuant~~Statement toGroup ~~Rule~~Four ~~13e-~~Five Six Collateral Description Mixed ARM Mixed ARM Mixed ARM Weighted Average Coupon Rate 5.535641 5.042098 5.281613 Weighted Average Net Rate 5.268274 4~~(c)~~.667697 ~~under~~4.947892 ~~the~~Weighted ~~Exchange~~Average ~~Act~~Maturity ~~(17~~356 ~~CFR~~356 ~~240~~355 Beginning Loan Count 112 537 669 Loans Paid In Full 0 9 2 Ending Loan Count 112 528 667 Beginning Scheduled Balance 50,095,324.~~13e~~32 115,231,997.43 141,229,617.66 Ending scheduled Balance 49,860,083.32 113,129,587.39 140,606,419.98 Record Date 04/29/2005 04/29/2005 04/29/2005 Principal And Interest Constant 237,652.90 507,684.98 678,067.57 Scheduled Principal 6,561.46 23,509.13 56,467.42 Unscheduled Principal 228,679.54 2,078,900.91 566,730.26 Scheduled Interest 231,091.44 484,175.85 621,600.15 Servicing Fees 11,161.51 35,952.45 39,276.03 Master Servicing Fees 0.00 0.00 0.00 Trustee Fee 0.00 0.00 0.00 FRY Amount 0.00 0.00 0.00 Special Hazard Fee 0.00 0.00 0.00 Other Fee 0.00 224.85 0.00 Pool Insurance Fee 0.00 0.00 0.00 Spread Fee 1 0.00 0.00 0.00 Spread Fee 2 0.00 0.00 0.00 Spread Fee 3 0.00 0.00 0.00 Net Interest 219,929.93 447,998.55 582,324.12 Realized Loss Amount 0.00 0.00 0.00 Cumulative Realized Loss 0.00 0.00 0.00 Percentage of Cumulative Losses 0.0000 0.0000 0.0000 Prepayment Penalties 0.00 0.00 0.00 Special Servicing Fee 0.00 0.00 0.00 Pass-Through Rate 5.268274 4~~(c))~~.665356 4.947892

~~Information~~Group toLevel beCollateral ~~Included~~Statement inGroup ~~the~~Seven ~~Report~~Eight-A Eight-B Collateral Description Mixed ARM Mixed ARM Mixed ARM Weighted Average Coupon Rate 5.433669 6.190535 6.059282 Weighted Average Net Rate 5.089204 5.939040 5.807270 Weighted Average Maturity 356.00 356.00 356.00 Record Date 04/29/2005 04/29/2005 04/29/2005 Principal And Interest Constant 251,704.87 534,100.70 942,970.86 Beginning Loan Count 189 470 522 Loans Paid In Full 2 6 15 Ending Loan Count 187 464 507 Beginning Scheduled Balance 51,011,931.18 95,654,979.66 174,965,056.86 Ending Scheduled Balance 50,272,077.97 94,677,393.59 168,567,866.77 Scheduled Principal 20,719.92 40,637.76 59,502.04 Unscheduled Principal 719,133.29 936,948.31 6,337,688.05 Scheduled Interest 230,984.95 493,462.94 883,468.82 Servicing Fee 14,643.16 20,047.32 36,744.45 Master Servicing Fee 0.00 0.00 0.00 Trustee Fee 0.00 0.00 0.00 Fry Amount 0.00 0.00 0.00 Special Hazard Fee 0.00 0.00 0.00 Other Fee 0.00 540.19 392.36 Pool Insurance Fee 0.00 0.00 0.00 Spread 1 0.00 0.00 0.00 Spread 2 0.00 0.00 0.00 Spread 3 0.00 0.00 0.00 Net Interest 216,341.79 472,875.43 846,332.01 Realized Loss Amount 0.00 0.00 0.00 Cumulative Realized Loss 0.00 0.00 0.00 Percentage of Cumulative Losses 0.0000 0.0000 0.0000 Prepayment Penalties 0.00 0.00 0.00 Special Servicing Fee 0.00 0.00 0.00 Pass-Through Rate 5.089204 5.932263 5.804579

~~Section~~Group 8Level –Collateral Statement Group Total Collateral Description Mixed Fixed & Arm Weighted Average Coupon Rate 5.433448 Weighted Average Net Rate 5.818609 Weighted Average Maturity 357.00 Record Date 04/29/2005 Principal And Interest Constant 4,628,882.21 Beginning Loan Count 3,133 Loans Paid In Full 42 Ending Loan Count 3,091 Beginning Scheduled Balance 953,283,117.12 Ending Scheduled Balance 937,981,417.90 Scheduled Principal 312,536.71 Unscheduled Principal 14,989,162.51 Scheduled Interest 4,316,345.50 Servicing Fee 248,083.19 Master Servicing Fee 0.00 Trustee Fee 0.00 Fry Amount 0.00 Special Hazard Fee 0.00 Other ~~Events~~Fee 1,157.40 Pool Insurance Fee 0.00 Spread 1 0.00 Spread 2 0.00 Spread 3 0.00 Net Interest 4,067,104.91 Realized Loss Amount 0.00 Cumulative Realized Loss 0.00 Percentage of Cumulative Losses 0.0000 Prepayment Penalties 0.00 Special Servicing Fee 0.00 Pass-Through Rate 5.817152

~~ITEM~~Miscellaneous 8Reporting Group One Insurance Proceeds 0.0100 Net Liquidation Proceeds 0.00 ~~Other~~Repurchase ~~Events~~Proceeds 0.00 Subsequent Losses 0.00 Subsequent Loss Recoveries 0.00 Substitution Amount 0.00 Substitution Adjustment Amount 0.00 Group Two Insurance Proceeds 0.00 Net Liquidation Proceeds 0.00 Repurchase Proceeds 0.00 Substitution Amount 0.00 Subsequent Losses 0.00 Subsequent Loss Recoveries 0.00 Substitution Adjustment Amount 0.00 Group Three Insurance Proceeds 0.00 Net Liquidation Proceeds 0.00 Repurchase Proceeds 0.00 Substitution Amount 0.00 Substitution Adjustment Amount 0.00 Subsequent Losses 0.00 Subsequent Loss Recoveries 0.00

OnMiscellaneous ~~March~~Reporting ~~30,~~Group ~~2005,~~Four ~~Credit~~Insurance ~~Suisse~~Proceeds ~~First~~0.00 ~~Boston~~Net ~~Mortgage~~Liquidation ~~Securities~~Proceeds ~~Corp~~0.00 ~~caused~~Repurchase ~~the~~Proceeds ~~issuance~~0.00 ~~and~~Substitution ~~sale~~Amount of0.00 ~~the~~Substitution ~~Adjustable~~Adjustment ~~Rate~~Amount ~~Mortgage-Backed~~0.00 ~~Pass-Through~~Subsequent ~~Certificates,~~Losses ~~Series~~0.00 ~~2005-3,~~Subsequent ~~pursuant~~Loss toRecoveries a0.00 ~~Pooling~~Group ~~and~~Five ~~Servicing~~Insurance ~~Agreement~~Proceeds ~~dated~~0.00 asNet ofLiquidation ~~March~~Proceeds 1,0.00 ~~2005,~~Repurchase ~~among~~Proceeds ~~Credit~~0.00 ~~Suisse~~Substitution ~~First~~Amount ~~Boston~~0.00 ~~Mortgage~~Substitution ~~Securities~~Adjustment ~~Corp~~Amount 0.,00 asSubsequent ~~depositor,~~Losses ~~DLJ~~0.00 ~~Mortgage~~Subsequent ~~Capital,~~Loss ~~Inc~~Recoveries 0.,00 asGroup ~~seller,~~Six ~~Wells~~Insurance ~~Fargo~~Proceeds ~~Bank, N~~0.~~A.,~~00 asNet ~~trust~~Liquidation ~~administrator,~~Proceeds ~~master~~0.00 ~~servicer,~~Repurchase ~~servicer~~Proceeds ~~and~~0.00 ~~back-up~~Substitution ~~servicer,~~Amount U0.S.00 ~~Bank~~Substitution ~~National~~Adjustment ~~Association,~~Amount as0.00 ~~trustee,~~Subsequent ~~and~~Losses ~~the~~0.00 ~~other~~Subsequent ~~servicers~~Loss ~~that~~Recoveries ~~are signatories thereto~~0.00

~~Section~~Miscellaneous 9Reporting –Group ~~Financial~~Seven ~~Statements~~Insurance ~~and~~Proceeds ~~Exhibits~~0.00 Net Liquidation Proceeds 0.00 Repurchase Proceeds 0.00 Substitution Amount 0.00 Substitution Adjustment Amount 0.00 Subsequent Losses 0.00 Subsequent Loss Recoveries 0.00 Group Eight-A Insurance Proceeds 0.00 Net Liquidation Proceeds 0.00 Repurchase Proceeds 0.00 Substitution Amount 0.00 Substitution Adjustment Amount 0.00 Subsequent Losses 0.00 Subsequent Loss Recoveries 0.00 Group Eight-B Insurance Proceeds 0.00 Net Liquidation Proceeds 0.00 Repurchase Proceeds 0.00 Substitution Amount 0.00 Substitution Adjustment Amount 0.00 Subsequent Losses 0.00 Subsequent Loss Recoveries 0.00

Group

ITEM 9.01 (c). Exhibits.

(c)	Exhibits (executed copies): The following execution copies of Exhibits to the Form S-3 Registration Statement of the Registrant are hereby filed:
	10.1	Pooling and Servicing Agreement dated as of March 1, 2005, among Credit Suisse First Boston Mortgage Securities Corp., as depositor, DLJ Mortgage Capital, Inc., as seller, Wells Fargo Bank, N.A., as trust administrator, master servicer, servicer and back-up servicer, U.S. Bank National Association, as trustee, and the other servicers that are signatories thereto.

10.2 Assignment and Assumption Agreement, dated as of March 30, 2005, by and between DLJ Mortgage Capital, Inc. and Credit Suisse First Boston Mortgage Securities Corp.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Dated: April 21, 2005
		CREDIT SUISSE FIRST BOSTON MORTGAGE SECURITIES CORP.
		By: /s/ Kevin Steele
		Name: Kevin Steele
		Title: Vice President

Exhibit Index

Exhibit Number			Description
	10.1	Pooling and Servicing Agreement dated as of March 1, 2005, among Credit Suisse First Boston Mortgage Securities Corp., as depositor, DLJ Mortgage Capital, Inc., as seller, Wells Fargo Bank, N.A., as trust administrator, master servicer, servicer and back-up servicer, U.S. Bank National Association, as trustee, and the other servicers that are signatories thereto.

10.2 Assignment and Assumption Agreement, dated as of March 30, 2005, by and between DLJ Mortgage Capital, Inc. and Credit Suisse First Boston Mortgage Securities Corp.

Filing Compare · CSFB Adjustable Rate Mortgage Trust 2005-3