Reference number: CH000955

No keys on my keyboard work.

Question:

No keys on my keyboard work.

Cause:

This issue is often caused by either a bad keyboard, bad interface board, and/or bad motherboard.

Additional information:

This document contains information about troubleshooting a keyboard that has no functioning keys. If some of the keys are working and some are not see document CH000305.

Answer:

Disconnect the keyboard from the computer and connect another known working keyboard to it. If this is a PS/2 keyboard and connecting multiple keyboards or a known working keyboard to the computer PS/2 port does not work unfortunately it's likely that the PS/2 port is bad. Because this port is part of the motherboard this will require that you replace the motherboard.

Alternatively if replacing the motherboard is too costly or not an effective solution you could also consider using a USB keyboard if USB ports are available on the computer.