Most likley you have bent a pin in the processor socket so that one of the x1 DINNS is not being seen.
Populate just the blue slots and see if you can boot to BIOS set-up.
It should show which bank is not being seen.
Most likley you have bent a pin in the processor socket so that one of the x1 DINNS is not being seen.
Populate just the blue slots and see if you can boot to BIOS set-up.
It should show which bank is not being seen.