IBM 8849 Service Manual page 44

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 8849 or Type 8491 server," on page 61 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
The USB mouse or USB
pointing device does not work.
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IBM xSeries 306m Types 8849 and 8491: Problem Determination and Service Guide
Action
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 mouse or pointing device cable.
4. Replace the following components one at a time, in the order shown, restarting
the server each time:
a. Mouse or pointing device
b. (Trained service technician only) System board