Not many parts in a laptop. The forum sticky lists them so I don't repeat it each time. In this case you try the reset noted in the forum sticky and hope. Otherwise I'll call it -> replace the motherboard.
I just reloaded the OS and let it do all of its updating, when I came back it was like in sleep mode, when I reached to the power button re-start it got zapped with static electricity from my finger and was dead. Wont do anything except charge the battery. I have tried all the tricks I could find like pulling the battery and memory, resetting the bios by holding the power button then trying to restart with power supply only but no luck. I have now dissembled the laptop and notice the LED Board (part #417024-001) looks slightly discolored. That may be normal I dont know. That is the piece that actually has the power button in it so my first thought was the switch fried. How can I determine what went bad with that static zap? Might have got the mobo for all I know.