black screen help

[wizi]

my compaq laptop has a black screen but the power button on

 

[Laptop_Nerd]

Hi,

Do a hard reset first, remove the battery and AC adapter then press and hold the power button for 20 seconds. Plug just the AC adapter in and see if the laptop boots up just fine. If it doesn't connect an external monitor and see if you'll get any display because if you do, that means that it's your LCD that has a problem. Lastly, reseat the RAM make sure that they are all seated properly in the RAM slots and if these still won't fix the issue it's a possible motherboard problem already.