IBM xSeries 235, Maintenance & Troubleshooting

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Note: See “System” on page 156 to determine which components should be replaced by a field service technician.
Hark disk drive problems
Symptom FRU/action
System stops responding during
hard disk drive diagnostic test.
1. Remove the hard disk drive being tested when the server stopped
responding and try the diagnostic test again.
2. If the hard disk drive diagnostic test runs successfully, replace the drive you
removed with a new one.
Note: See “System” on page 156 to determine which components should be replaced by a field service technician.
General problems
Symptom FRU/action
Problems such as broken cover
locks or indicator LEDs not
working
v Broken CRU/FRU
Note: See “System” on page 156 to determine which components should be replaced by a field service technician.
Intermittent problems
Symptom FRU/action
A problem occurs only
occasionally and is difficult to
detect.
1. Verify that:
v All cables and cords are connected securely to the rear of the server and
attached options.
v When the server is turned on, air is flowing from the rear of the server at the
fan grill. If there is no airflow, the fan is not working. This causes the server
to overheat and shut down.
v Ensure that the SCSI bus and devices are configured correctly and that the
last external device in each SCSI chain is terminated correctly.
2. Check the system error log.
Note: See “System” on page 156 to determine which components should be replaced by a field service technician.
Keyboard, mouse, or pointing-device problems
Symptom FRU/action
All or some keys on the
keyboard do not work.
1. Verify that:
v
The keyboard cable is securely connected to the system, and the keyboard
and mouse cables are not reversed.
v The server and the monitor are turned on.
2. Keyboard.
3. System board.
The mouse or pointing device
does not work.
1. Verify that:
v The mouse or pointing-device cable is securely connected, and that the
keyboard and mouse cables are not reversed.
v The mouse device drivers are installed correctly.
2. Mouse or pointing device.
3. System board.
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xSeries 235 Type 8671: Hardware Maintenance Manual and Troubleshooting Guide