I have a Acepower 400w PSU that will not power on at all, I have disconnected everything connected to the computer except the main power into the motherboard and the 4 pin. It still will not power on, I have even tested the power supply with a paper clip, and it turned on, but will not turn on while connected the the motherboard. The power supply light on the motherboard is on. Heres a total list of internal peripherals I wish to use with it.
40GB SATA HDD
120GB IDE HDD
40GB IDE HDD
Nvidia GeForce 6300 (I think) GPU
Sound Blaster Audigy
I don't know if that will help but I thought I'd post it anyways! Tell me if you need any more info!
"There are two ways of doing this. My way, or the he's a dead motherf#$%*@ way. You pick." - The Boss, Conker's Bad Fur Day