Hey all, Lately, my system has been randomly shutting off as if it loses power temporarily. The screen just goes black, and then the system boots back up. As far as I can tell, it only happens when my system is overclocked, but even then it is inconsistent. I had my i7 920 clocked to a simple 3.2 ghz and my gtx 275 clocked to 725/1650/1300, then ran folding clients (SMP and GPU2 respectively) on both of them for 8 hours with no problems. Then, I close down the clients, open up photoshop and bridge, and the system shuts down. I turned it back on and within five minutes it had shut off again. I have restored the bios to stock settings, and it appears to be running fine. Could this be a PSU problem? Or does this system just not like overclocking very much? Any advice is welcome.