I killed my computer somehow I left and came back and someone messed with it now it doesn't work. I took it to a computer shop to see what they thought. They tested cpu and it wasn't even hot. Then they tested the motherboard they said that it's either the cpu or motherboard or both. Well I bought a new cpu same model and same motherboard. I'm waiting on the motherboard tomorrow delivery. My question is. Would the motherboard not come on at all if it is broken. I installed the cpu. It came on all the fans run and I plugged it up but the screen says no signal I hope it's the motherboard because that is being shipped to my place. That would be my only guess. The I have with everything plugged in shows no signal. The ram is working and he tested all components with a power tester.