I just built an athlon xp 2400 system using an apogee motherboard and the computer turns on but only for a few seconds all the lights and fans come on but then shut off. The power led and the hdd led stay on however untill i shut the computer off at the power supply. I have tested the power supply in another computer and it works great. This is probably the tenth amd system i have put together but the first with this apogee motherboard. If anyone knows what is going on please let me know im stumped.