ok i have been searching for 3 days now.and still got no answer. but im trying to build my own computer.. i plugged everything in. but when i plugged in the PSU. the motherboard has a green light on it. but when i push the power button on tower nothing happens. also the fans do not spin inside the case and the PSU fan does not spin ether.could it be the motherboard Cpu or Psu thats bad? and i do not have an extra computer to test and see whats wrong.