IBM xSeries 206m, Руководство по диагностике и обслуживанию

Страница: 95 / 144

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 8849 and Type 8491 server,” on page 19 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 keyboard cable.
4. Replace the following components one at a time, in the order shown, restarting
the server each time:
a. Keyboard
b. (Trained service technician only) System board
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 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
Chapter 5. Diagnostics
79