Posted 03 February 2009 - 06:44 PM
I was thinking maybe the power connection, but it seems like the battery/power cable are alright. The motherboard may be the suspect. Not to give up so easily, you could try taking out individual sticks of ram, to see if one went bad, but besides this I'm not really sure what else you could do. The computer would still post if the hard drive went bad, so it's not the problem. Perhaps the graphics went bad, but you can't really replace these in laptops, so this would be almost as bad as if the motherboard went bad.
Another thing, maybe the fans got bumped loose, or the heatsink from the processor. This could be a fail safe to protect from overheating. You should also clean it out while you're at it.
Sorry, I'm not as good with laptops, but maybe someone else with more knowledge with them can help you out!
"I think there is a world market for maybe five computers." - Thomas Watson, Chairman of IBM, 1943