Im working on my friends computer and it keeps crashing. Specs: MSI MS-7104 Ver 3.0 Intel Celeron 2.2 Ghz 1024MB Kingston PC2700 (New) nVidia GeForce 6200 256Mb AGP 8x 260GB Hitachi Hard Drive Sony DVD/CD Burner 450 watt Thermaltake PSU At first the on-board VGA stopped working. I replaced it with a AGP card and it worked fine for a month, before it started having problems. The original 1 of the 2 original ram sticks, in bank 1 stopped working. Kept getting random BSOD's, so I tossed the old ram and left in the new Kingston stick. Installed the new stick and it still BSOD's randomly. They were very random but I got one written down. 0x0000008E (0xC0000005, 0x00000000, 0xB9255538,0x00000000) IRQL_NOT_LESS_OR_EQUAL I thought Ram? So I ran the stick on both DIMM slots with memtest86 multiple times, and it found NO errors. CPU temp? 40oC at idle...cleaned heatsink, applied AS5......still BSOD Next, I broke the system down to the basics... PSU, CPU, RAM, Video card, HD, CD drive. STILL BSOD. Next I swapped out the PSU... still BSOD Test hard drive with HDAT, Hitachi drive fitness....passed Reformat HD and reinstall Xp Pro, not loading any Mobo drivers... still BSOD Installed Mobo drivers, minus nVidia drivers... still BSOD Removed front panel USB connectors Swapped HD, full format, reinstall OS.... still BSOD Swapped Video card..... still BSOD BIOS is up to date, only add-in card is the Video card. I am at a loss, spending wayy too much time on this thing. Any help would be appreciated. I know mini-dump files would be some help, but I just re-formatted the HD again and havent reloaded the OS yet and im beat for now. The only things I havent crossed out are the CPU and Mobo. Are there any DOS based programs that I can use to test it? The only boot disk I have ATM is Hirens. Im guessing the Mobo may have crapped out, especially since the on-board Video broke. The on-board LAN works intermittently. The system was built by another dude two years ago. I dont see any damge on the Mobo. Please help! Thanks in advance!!