Hello, First and foremost, I would like to thank any and all who assist in these forums; this is a great service that you all volunteer your time to! Enough **** kissing, and onto the meat: AMD 3400 64 ASUS K8N mobo (hp garbage) 100 G HD ATI X850XT AGP 5 cooling fans Raidmax 420W PSU (brand-new came with the case) I swapped a HP a530n over to a raidmax case. I have been using the PC playing BF2/WoW since Saturday without any problems. However, yesterday, something bad happened. The symptoms: The computer operates normally for sometime (prob 10-30 mins) after it is turned on. Then it the HD will rev up..I mean REV up, and click. This happens a few times, and it reverts to a blue screen. The blue screen states, "Windows has been turned off in order to prevent corruption." Now I smelled the PSU, and I think I detected a burned electrical smell. I am wondering if it is the el cheapo PSU that came w/ the case, the HD? or maybe a gremlin?