I put together a new PC. It ran fine for an evening but after that it suddenly shut down. I discovered that there was some thermal paste underneath the CPU; I cleaned it off carefully with some rubbing alcohol. The PC then worked again for a couple of hours but then shut off again. Ever since, it mostly doesn't boot, except for the three or four times it does - but gives up after a few minutes.
- Asus P8P67 Pro
- Intel i5-2500
- ATI Radeon 6850
- Corsair Vengeance 2x4GB
- 1TB 7200 RPM hard drive
- Cooler Master GX 550W
Both of the power cords to the motherboard are connected. I tried with one stick of RAM and exchanging them, but it didn't make a difference.
I also tried reseating the CPU and checked for bent pins.
Does anyone have a clue? I am out of ideas.