IBM System x3950, Problem Determination And Service Manual

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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, Type 8878 and 8879,” on page 109 to determine which components are
customer replaceable units (CRU) and which components are field replaceable units (FRU).
v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a
trained service technician.
Symptom Action
The mouse or pointing device
does not work.
1. If the server is attached to a KVM switch, bypass the KVM switch to eliminate it
as a possible cause of the problem: connect the keyboard cable directly to the
correct connector on the rear of the server.
2. Make sure that:
v
The mouse or pointing-device cable is securely connected and the keyboard
and mouse cables are not reversed.
v The mouse device drivers are installed correctly.
v The mouse is enabled in the Configuration/Setup Utility program
3. Reseat the following components:
a. Mouse or pointing device
b. I/O board
4. Replace the components listed in step 3 one at a time, in the order shown,
restarting the server each time.
USB keyboard, mouse, or pointing-device 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, Type 8878 and 8879,” on page 109 to determine which components are
customer replaceable units (CRU) and which components are field replaceable units (FRU).
v
If an action step is preceded by “(Trained service technician only),” that step must be performed only by a
trained service technician.
Symptom Action
All or some keys on the
keyboard do not work.
1. If you have installed a USB keyboard, run the Configuration/Setup Utility
program and enable keyboardless operation to prevent the POST error
message 301 from being displayed during startup.
2. Make sure that:
v The keyboard cable is securely connected and the keyboard and mouse
cables are not reversed.
v
The server and the monitor are turned on.
3. Reseat the following components:
a. Keyboard
b. I/O board
4. Replace the components listed in step 3 one at a time, in the order shown,
restarting the server each time.
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IBM System x3950 Type 8878 and System x3950 E Type 8879: Problem Determination and Service Guide