Hello, i have a laptop, it will on but it will not display on the screen and check the ram it is ok, but when i lose the board from the system i try another processor it work, i decided to fixed it back with the processor i get it could not work but if i life the system board up from the carcass, it it will work and display on the screen and i fixed it back it will not work (please what is the problem)Sir help me
More aboutrepair laptop motherboard
something is shorting out if it works away from the case but not in it. or a lead is being pressured into a poor position.
when you lift the board out of the chassis, have a look at the board mounts (were the board connects to the chassis) and see if there is any obstruction, like a left over screw or something.