|This machine did have a failing PSU, which I have replaced. (12v rail powering up to 13.7v intermittent), and did cause the video card to burn out, (also replaced). The computer will now run fine for a long time, (anywhere between 8hrs and 16hrs before powering off). I have vacuumed out the interior of the computer, and cleaned the CPU fan and heatsink. However, the computer will randomly power off after running for between 8 and 16 hours. During the time the system is up, it runs perfectly fine. When power is lost, it is just as a power failure has happened and/or the cord was pulled from the back of the machine. In order to power the machine back up, the power cable must be removed, the PSU shut off, the power cable re-inserted, and the PSU turned back on before turning on the machine. After the machine comes back online, it operates fine until the next power failure. What else would be causing this problem? Failing CPU? |
The only stupid question is the one not asked.