Yes, we definitely need more info on your setup. Dell Poweredge models are designed to be servers. If you have important data on this computer, that you do not have a backup of, you probably shouldn't try to fix this yourself. You should take it to someone that is familiar with server hardware.
I think you are in over your head because you found it necessary to block out the firmware revision information as if it was personal or confidential.
Behind every good computer... is a jumble of wires 'n stuff.