MY comp after maybe 1hr of operation shuts down into a sort of standby state. THe power light is on but the fans and everything else is off. Am I overheating my computer? OR am I going over my PSU can handle (PSU is 500 watts my old one that died on me was 580 but my comp uses about 300, or so I think) I think I havwe like a broken heat sensor or something. I am buying a new mobo adn RAM and a CPU which if it is a heat sensor on the mobo i have now it wont be a problem for long, but i was curious to what you guys think.