I work for an ISP and the other tech guy has been working on a computer for the owner for months now. He apparently keeps running into problems and from I understand has fried two motherboards. This week the motherboard came back again after being repared AGAIN so I took it upon myself to go back and put it together myself since he can't do it. I plugged up the power switch to the motherboard, both motherboard power connections from the power supply, the RAM, processor, and the video card. The standy late came on and I pressed the power button. Nothing happened. Ideas?