I have a gateway model 600ygr and I can't get any screen to come up on the laptop screen or on the plug in for a monitor. I was given this laptop and have no knowledge of any history. I do know that the hard drive and ram was gone but I put in a 512 ram chip and I thought that the bios at least ought to come up even without a hard drive. Does anyone know what I might need to do to this laptop? I would like to fix it very much.