Recently one of my PCs has become difficult to start. When I press the PC's "On" button the computer seems to start for a second, (lights and fan start for a second and then it dies). If I press the start button a second time nothing happens. If I unplug the mains power card, and re-plug it it, then press the start button, I once again get a surge of power and then it dies again. After many attempts the PC finally starts. I have eliminated the PC's "power on" button as the problem, by removing the connection on the mother board and starting with a screwdriver (connecting the two power supply pins for a brief moment with the tip on the screwdriver). I know this may be a Power Supply problem, so please, no posts saying "Get a new Power Supply". What I want to know: Is my experience a normal symptom of a slowly dying power supply, or is it a normal sympton of something else on the Mother Board, such as a dead battery or something else?