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 USB mouse or USB
pointing device does not work.
1. Make sure that:
v
The mouse or pointing-device USB cable is securely connected to the
server, the keyboard and mouse or pointing-device cables are not reversed,
and the device drivers are installed correctly.
v
The server and the monitor are turned on.
v
Keyboardless operation has been enabled in the Configuration/Setup Utility
program.
2. If a USB hub is in use, disconnect the USB device from the hub and connect it
directly to the server.
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.
Chapter 2. Diagnostics
41