Thank u people for the replies. I am sorry and apologize to everyone for sounding upset. I believe it is the cpu after running a bunch of tests. Memtest86 reports no errors... and i have even tried setting the memory to the least aggressive timings. I have the Epox 4bda+2 motherboard. I've been running my chip on this system for almost a year with no real problems. I do occassional formats/reinstalls of XP to freshen things up. A few weeks ago, i was experiencing a lot of application crashes.. especially when launching Internet Explorer, Netscape, Media Player, SiSoft Sandra...etc. When i increased the vcore from 1.50 to 1.52v, it helped minimize crashes. I thought all was good.. Then they came back again. After running prime95 for a few hours, the computer blue screened. Then i upped the 1.55v and it helped some more.. but i still get occassional crashes which leads me to believe it is the cpu.