Hi, I've been havign BSOD's now for over a month. Sometimes many a day to 1 a week. Well once it was 1 a week. usually a few a day. All of the same error. Heres the low down. Using Windows XP pro I 've had this problem now for a month and have taken ever piece of advice i was offered on other forums towards fixing it. Primary STOP error code is: 000000f4, (00000003, 8a4b2da0, 8a4b2f14, 805c7478) And upon reboot windows displays a message saying i've had 'recovered' from a serious error, where upon directs me to a MS website: http://oca.microsoft.com/en/response.aspx?SGD=0baec4ce-d63f-4cb7-928d-aad32ac5ff75&SID=708 Sayign how one of my HDD's have failed I;ve done every bit of testing ansd scanning i could think of on my 3 HDD's WD Raptor 36GB WD 200GB SATA WD 250GB SATA2 Raptor being my windows drive. Ive done, basic to comprehensive chk disk, scanning for bad sectors errors, etc. Ive done burn in test on my whole PC Ive not installed new hardware since problems occured, well except for the raptor. Software wise no new i could think of. Ive used Western digitals hard drive diagnostics tools, did full scans, all 3 HDDs come out healthy. Ive done Memtest86+ on my ram for hours. In the end, 3 days ago i had enough and FORMATTED (not quick format but write total ZEROs) on my Raptor and reinstaleld windows, patched it all up to date, all drivers, everything. BANG, half a day after format, first BSOD, then again and again. all of the same error: 000000f4, (00000003, 8a4b2da0, 8a4b2f14, 805c7478) Previously before format ive had different errors but with the same primary 000000f4 parameter. Some times it even listed a drievr name, such as spt.sys, spt_097.sys (not sure on this one) and scsi_port.sys Now after format its just The above error code over and over without namign drivers. Also it writes mini dumps but i dont know how to decipher them. I am totally lost here, i've formatted and i still get bloody problems. So am i definitly havign a hardware problem here? Rest of ym system is AMD64 3200 venice ASrock dual sata2 XFX 7900GT 2x 1GB generic DDR400 ram 650w Silverstone Zeus PSU 2 optical drives Creative X-Fi Also at the time of my BSOD's i can be doign completely random things. Such as web browsing, listening to music, typign a word document, etc. But weirdly enough never when im gaming.... Please help... EDIT: Event log details Details Product: Windows Operating System Event ID: 1003 Source: System Error Version: 5.2 Symbolic Name: ER_KRNLCRASH_LOG Message: Error code %1, parameter1 %2, parameter2 %3, parameter3 %4, parameter4 %5.