Good info AllenB.

I have built hundreds of systems and some of the worse mistakes I have made are failing to hook up the processor fan and/or forgetting the thermal grease. Intel systems(from 900 to 1500mgz anyway) can actually post and begin to load the OS before they fry. An AMD chip?
They will burn in microseconds if not cooled properly. Also in the mb has jumpers(many still do) make sure they are configured properly