IBM System x3100 M4, Problem Determination And Service Manual

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Universal Serial Bus (USB) port 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 4, “Parts listing, System x3100 M4 Type 2582,” on page 151 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
A USB device does not work.
1. Run USB diagnostics (see “Running the diagnostic programs” on page 94).
2. Make sure that:
v The correct USB device driver is installed.
v
The operating system supports USB devices.
3. Make sure that the USB configuration options are set correctly in the Setup
utility program.
4. If you are using a USB hub, disconnect the USB device from the hub and
connect it directly to the server.
Chapter 3. Diagnostics
93