My PC won't start anymore. I was playing a game on my PC and it just shut down...I thought we lost power initially...but all the house lights were still on. I opened up the case and to the touch everything seemed fine. Nothing was hot...just warm. All the fans are working (case fans, CPU fans, power suppy, video card). After the first instance I booted up and got to Windows. The minute I tried to do something it shut down. Now when i try to turn it on...it turns on for about a minute, nothing happens and it shuts down. I can't hear the HD working to boot Windows. I'm not sure if it's overheating or a power supply issue. Is there a way to tell if it's a power supply issue without testing another power supply...I don't have a spare. I have a Intel i7 processor Asus motherboard GTX 460 vid card Running windows 7-64 bit 8gb of RAM Any help is greatly appreciated.