Laptop was working fine. After shutting down the laptop, when it was turned on, the power button lit up and the fan kicked in at a high speed. Nothing was displayed on the screen. I pulled the power from the laptop and did a hard shut down. I pressed the power button for 15 seconds until I heard a click. Plugged the power cord back in and turned laptop back on. Same thing. I connected an external monitor using both VGA and HDMI. Neither had a display. I removed the RAM and reseated it. Powered up, same thing. I took apart the laptop and removed the battery from the laptop. Reseated it and put it all back together. Same thing. Anyone have any other ideas?