I have looked on google for some days now and finally found this forum, my problem is that my pc at random times goes bsod and restarts, the reasons is most of the time "irql not less nor equal" but have also had "kernel data in page error" and page faulth in no page area" and the last one is "pfn list corrupt". I have had Microsoft memory tester going for 8 hours and no problem, memtest i have problem with since i don't have a floppy drive. I have run check disk as written on one of the pages, i have removed my swapfile and defraged an restored the swapfile. And still getting the bsod. i have cleaned the inside of my cabinet and still no help. my pc spec is. Mobo asrock 939dual-sata2 Cpu athlon x64 (3500+) @ 2200 MHz grafikkort geforce 7900 gt 256 mb ram 2 gb of unknown origin hdd maxtor 6 v200e0 scsi sataII av/firewall kaspersky but have tried other even avg printer hp laserjet 1600 Nokia telephone 9300i keyboard both logitech I am attaching the last 9 minidumps, as i have no idea how to read them or even to open them. I am at the end of my rope here hope that someone knows what is wrong, the only help that i get at Microsoft is that there isn't any solution for my problem, they don't even tell me what is the problem!