Keyboard Problems - IBM BladeCenter JS21 Types 8844 Service Manual

Keyboard problems

v Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v See Chapter 3, "Parts listing, Types 7988 and 8844," on page 137 to determine which components are
CRUs and which components are FRUs.
v If an action step is preceded by "(Trained service technician only)," that step must be performed only by a
trained service technician.
Symptom
All or some keys on the
keyboard do not work.
Action
1. Make sure that:
v The keyboard/video select button LED on the front of the blade server is lit,
indicating that the blade server has ownership of the keyboard and video.
v The keyboard cable is securely connected to the BladeCenter management
module.
v If you are using a PS/2 keyboard, the keyboard cable is connected to the
proper connector.
v The blade server is using a supported Linux operating system that has
loaded completely and supports USB devices.
v The blade server and the monitor are turned on.
2. Replace the keyboard.
3. Replace the management module on the BladeCenter unit; see the Hardware
Maintenance Manual and Troubleshooting Guide or Problem Determination and
Service Guide for your BladeCenter unit.
117
Chapter 2. Diagnostics