After updating a few drivers from Dell's support site, the laptop restarted but now the power only goes to the keys and not the screen. I cannot boot the device at all to do any diagnostics. I attempted connect it to my PC monitor using a VGA and to my TV using a HDMI but neither displayed anything. The only thing I have to go on is that the number lock stays steady while the caps and scroll locks blink simultaneously. Could it be the RAM, motherboard or both? Please help, I just purchased this laptop and the seller will not accept a return.