Title says it all. It's my main system in specs, the one with the i7. It doesn't BSOD or anything, it just reboots itself. I've never actually seen this happen, but I can tell from some of the icons in my system tray being different, and I verified it by looking through event viewer. Not sure what's to blame here. Could be the power supply I guess, it is getting rather old, and it is only a 550w model. Temps are fine, right now I'm at 72c load. Could also be something going unstable I suppose, I'll run some tests later. Maybe I need more cpu voltage?