Built this PC about two months ago; ran fine until this morning. Woke up and it was off, couldn't power it back on. I removed the motherboard from the case to test it, but have had no luck. The power light on the motherboard comes on when the power supply is plugged in, but pressing the power button does absolutely nothing: no fans, nothing. I tested the power button on a different motherboard and it works fine. I'm running on the assumption that the motherboard is fried and am preparing to rma it in, but thought I would check and see if anyone has any other possibilities. I guess it could be the psu, but I would think the motherboard power light wouldn't come on then, plus I don't have another motherboard around that takes a 24-pin power connector to test with. I suppose I could pick up another psu, but I just don't think that is the problem. The specs are as follows:
Asus P5B-VM (using onboard video)
Pentium D 930 3.0 Ghz w/ stock cpu fan
400W Power Supply
Belkin Wireless G Card
Asus P5B-VM (using onboard video)
Pentium D 930 3.0 Ghz w/ stock cpu fan
400W Power Supply
Belkin Wireless G Card