Now that it's happened on a few machines lately, I figured I'd post this. It seems like the ps/2 keyboard ports are dying on my 7010s, even plugging different keyboards into them and restarting still gets me a "keyboard not found" message by the BIOS.
If known good keyboards don't work, the the motherboard is not picking it up and needs to be replaced, if it is under warranty.
Make sure the keyboard works on another system, because I would doubt that just that particular port would die. Also make sure it is available in the BIOS.
I tried two different keyboards on two different machines, both keyboards on both machines when rebooted give me the keyboard not found, hit F1 F2 or F5 messages from the BIOS. I'll try to find a new keyboard straight out of the box to confirm as well, as well as testing it on another machine.
Thanks for the reply.