Ok, I just built a new computer that I ran for about 2 hours give or take then it powered down completely during my OS installation. Now it won't even power up at all, I switch on the power supply and the green led on the motherboard lights up, pressing the power button however does nothing. My worst fear at the moment is that I have fried the CPU by applying too much thermal conducting past between it and the heat sink. (I didn't apply the thermal conduct myself, I had my room mate helping me, I wasn't aware of how much was supposed to be applied.) Now the question I have is, would that be the reason why nothing happens when I hit the power button even if the green light is on? Another thing to note is that the cpu heatsink fan I bought already had a small amount of Thermal paste on it which we failed to notice right off. Computer specs: Asus M2R32-MVP Motherboard Asus EAH3850 ATI Radeon Graphics Card 4 GB Kingston 667 Mhz RAM dual 80 GB Seagate SATA HDDs AMD Athalon 64 X2 6000+ 3.0 ghz Windsor Core 430W power supply by Dynapower Let me know if anyone needs to know anything else. Thanks.