I have no power to a pc so replaced the PSU. Now it switches on but there is no beep, and the Caps Lock, Num Lock and Scroll Lock lights on the keyboard flash rapidly. The monitor does not come on, but stays in standby. The graphics are built on the motherboard. I've tried removing and replacing the RAM also.
I did earth myself first. What happened was the lights on the front of the case started flashing (when the computer was working) and wouldn't switch off in the normal way. So I switched it off at the mains, and now I have the problem described above. There's a very light rapid clicking sound that appears to be coming from beneath the processor fan.
If you switched the pc off at the mains then windows wasnt shut down right,so the hard drive activity(flashing light) may be windows correcting erros with the OS,if the cd draw doesnt open then it sounds like a power fault as this should open even if windows isnt loaded as its a direct currnent from the PSU.Maybe u have a faulty PSU?
If Windows is correcting errors, then how long should this take? It seems to be taking forever as the flashing lights are non-stop. The PSU is fine as it's brand new and works well in another separate computer. I agree that the CD drive should open and close independently even if Windows doesn't load but the fact that it doesn't - what could this mean? Is the motherboard and/or processor buggered? Or could the fault lie elswehere?
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