text: What model Intel CPU is it and what model motherboard is it?\n\nHave you connected the power switch correctly. Just because the board gets power when you press the button doesn't mean it's in the right place. I connected the power button wrong once and the pc would always go on but would not post properly. Put the switch in right and all was well. Try that otherwise the board might be dead, there is a possibility that something might be wrong with the powersupply.