A friend of mine is having some problems with his system. It's a Abit KT7A Raid running a Athlon 850 with a Leadtek Geforce 2 and a 300W AMD approved power supply. I can get more details if they help.

The system runs great otherwise. The only problem is on a cold boot. If the system is shutdown and the power button is hit then about half the time it will seem to power up for about 1/2 or 1/4 of a second then nothing.

Turning the atx power supply off and on and hitting power several times will eventually get it to power up. But why the hell does it do this? Any ideas guys? We've eliminated the power switch. Could it be the video?, Power supply? Mainboard?