Hello, let's see if I can do this in point form for easier analysis - Built the computer 1.5 years ago, has been working fine with supplied Athlon thermal pad. - The other day I shut down the computer normally and the next morning when I tried to boot up it only ran for 2-3 seconds then shut off. - I flipped power supply switch to "0" and back to "1". The computer now turns on when I just plug in the power cable (??) I don't even have to press the power button. - I tried unplugging my drives and even took out a stick of RAM before powering up but no go. - I suspected COP (CPU Overheating Protection), so I took out the CPU and heatsink, removed residue and applied Arctic Silver 5 which I had lying around. No go. - Power supply fan seems to be broken! I'm using standard case power supply (Antec 300W) with 2 Hdds (200+250gb) Please help!