Hey, does anyone have an idea why a computer would randomly just shut off? It doesn't shut down properly, it just shuts off. I've opened it up and checked all the plugs, as well as the power supply and the hard drives, and everything is OK. The motherboard's circuits are clean and the CPU is firmly secured. I know the problem is not caused by an overheat since the fans are running fine and the computer is at room temperature when the problem happens. I run Windows 7 Ultimate on an HP a6230n computer.