I see you have a sticky for this so i am working from that, trying to get down the list Here is my problem.
I am trying to help a friend out. He has a Presario F700 notebook, part#KC492UA#ABC, that is running win 7 ultimate retail. It has stopped working. When the notebook power supply is plugged in that blue light goes on and there is power to the notebook but there is nothing after that. I can hear the computer trying to boot, the fan is working and its a bit warm around that area, but i think that might be normal. I plugged in a known good external lcd but that didnt help. But there might be a key to press, like FN, to get an external monitor to work, i dont know in this case since its not my notebook. He doesnt even get the bios info, all he gets is a blank screen, so maybe an external monitor wouldnt work either?
Help would certainly be appreciated.