Greetings all. This is my first post, and thanks in advance for any feedback. System Info-- Motherboard: Micro Star K7T Turbo2 MS-6330 ATX CPU: AMD Athlon 1.1 GHz HDD: Seagate ST320423a 20gb RAM: Crucial 256mb PC 100 CL2 and Kingston 512mb PC 133 CL3 Video card: nVidia RIVA TNT2 Model 64 32mb OS: Win XP Professional Between June 25 and July 2, my computer has crashed repeatedly and created 34 minidumps, 27 before a repair install of XP Pro and 7 during and after the repair install. In each of the 34 cases, Windows Debugger gives the reading: Unable to load image ntoskrnl.exe, Win32 error 0n2 *** WARNING: Unable to verify timestamp for ntoskrnl.exe Here is a summary of the BugCheck diagnosis: Probably caused by: csrss.exe (23 times) ntoskrnl.exe (4 times) win32k.sys (3 times) atapi.sys (2 times) ftdisk.sys (1 time) memory_corruption (1 time) From what I read on the www, I guessed that my problem was my HDD, RAM, or video card. After my repair install of XP, I began running diagnostics. I ran “Seatools” diagnostic on my Seagate HDD. It found two bad sectors and successfully repaired them. I then cleaned my video card thoroughly and reinstalled it. My computer hasn’t crashed since: it’s been about 24 hours. I then ran Microsoft “Windows Memory Diagnostic” on my RAM cards, with curious results. I have 2 RAM cards (512mb and 256mb) and 3 RAM slots on my motherboard. First test (512 RAM in slot 1, 256 RAM not installed): Long test found 986 errors in Test 7 of 11 (MATS+ cache disabled) then stalled. Second test (512 RAM in slot 3, 256 RAM not installed): Long test found no errors. Third test (256 RAM in slot 3, 512 RAM not installed): Long test found no errors. Fourth test same as first test: Long test found no errors on two passes. Fifth test (512 RAM in slot 1, 256 RAM in slot 3): Long test found 60,000+ errors during Test 6 (WINVC) and I aborted test. Reinstalled 256 RAM in slot 3. Sixth test same as fifth test: Long test found no errors. I plan to leave the RAM card right where they are until further errors occur. My final test was chkdsk /r in Recovery Console. Chkdsk found and fixed one or more errors on the volume. So my questions is, how likely is it that the problem was/is: a) operating system b) video card c) RAM cards d) RAM slots very finicky about placement of RAM card in slot e) other And what should I do at this point?