Dell PowerEdge 4300 Installation And Troubleshooting Manual page 83

This procedure determines what kind of keyboard problem you have. If a system error
message indicates a keyboard problem when you start the computer system or while
the Dell Diagnostics is running, complete the following steps:
1. Look at the keyboard and the keyboard cable for any signs of damage. Press and
release each key on the keyboard.
Do the keyboard and its cable appear to be free of physical damage, and do the
keys work?
Yes. Go to step 3.
No. Go to step 2.
2. Swap the faulty keyboard with a working keyboard.
To swap a faulty keyboard, unplug the keyboard cable from the computer's back
panel and plug in a working keyboard.
Is the problem resolved?
Yes. The keyboard must be replaced. See Chapter 11, "Getting Help," for instruc-
tions on obtaining technical assistance.
No. Go to step 3.
3. Run the Keyboard test group in the Dell Diagnostics.
See Chapter 5, "Running the Dell Diagnostics."
Can you use the keyboard to select the Keyboard test group?
Yes. Go to step 4.
No. Go to step 5.
4. Did the Keyboard Interactive Test run successfully?
Yes. Go to step 6.
No. Go to step 5.
5. Swap the faulty keyboard with a working keyboard.
6. Did the Keyboard Controller Test run successfully?
Yes. The keyboard must be replaced. See Chapter 11, "Getting Help," for instruc-
tions on obtaining technical assistance.
No. The keyboard controller on the system board is faulty. See Chapter 11, "Get-
ting Help," for instructions on obtaining technical assistance.
Checking the Equipment 6-3