Posted 26 July 2011 - 12:11 PM
Hello all. I need your help identifying the faulty part in my computer. It's a desktop PC which suddenly stopped working (between switching it off and switching it on again two hours later). The symptoms are that the mouse and the keyboard get no power and the monitor gets no signal. The interesting thing is that when I plug in the keyboard while the computer is switched on, some LEDs on the keyboard blink to indicate that it has been plugged in, but then they all go out again. Previously, an LED was constantly on when the keyboard was plugged in, even if the computer was switched off. The hard drive goes on when the computer is switched on, I can hear it spin.
I have tried removing the graphics card and the RAM to see if then the mouse and the keyboard get power, but no luck. Unfortunately, the motherboard has no mobo speaker. I ordered one today, but it might take several days to arrive and I need the computer for work. If you could help me narrow down the problem, I will be eternally grateful.