I get the boot screen that says "Thinkpad" and displays the memory count, then the suspend light starts flashing, there is one beep (like you would get if it were booting properly), then the screen...

OK. Tried that. Still no luck. Boots, get a single Post beep, then into Suspend, at least that't the indicator light that's lit.

Even tried to flash the bios. Comes back with a message that the...

I'm new to this list, so please bear with me and forgive any dumb errors that I make.

I've got an IBM 365XD laptop that had a main board problem.

I've replaced the chassis with another 365XD...