I have a genuine IBM Model M PS/2 keyboard made in 1988 (in my opinion, these keybords were the best ever made). When I boot my Intel S5000XVN dual Xeon motherboard with the IBM keyboard plugged in and try to enter the BIOS by pressing F2, I can't because the BIOS can't see the keyboard. Other varieties of PS/2 keyboards work just fine with the Intel motherboard, however.
What puzzles me, is, that, the IBM PS/2 keyboard works fine with any other motherboard. I can't figure this out. Is there something missing in the BIOS? Thanks for any suggestions.