IBM System x3400 Type 7973, Руководство по диагностике и обслуживанию

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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 3, “Parts listing, System x3400 Types 7973, 7974, 7975 and 7976,” on page 87 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 58).
2. Make sure that:
v
The correct USB device driver is installed.
v The operating system supports USB devices.
v
A standard PS/2 keyboard or mouse is not connected to the server. If it is, a
USB keyboard or mouse will not work during POST.
3. Make sure that the USB configuration options are set correctly in the
Configuration/Setup Utility program. (For more information, see the User’s
Guide on the IBM System x3400 Documentation CD).
4. If you are using a USB hub, disconnect the USB device from the hub and
connect it directly to the server.
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System x3400 Types 7973, 7974, 7975, and 7976: Problem Determination and Service Guide