General Problems; Intermittent Problems; Keyboard, Mouse, Or Pointing-Device Problems - IBM 622138U - IntelliStation Z - Pro 6221 User Manual

General problems

General problem symptom
Problems such as broken cover
locks or indicator LEDs not
working

Intermittent problems

Intermittent problem symptom Suggested action
A problem occurs only
occasionally and is difficult to
detect.

Keyboard, mouse, or pointing-device problems

Keyboard, mouse, or
pointing-device symptom
All or some keys on the
keyboard do not work.
The mouse or pointing device
does not work.
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IBM IntelliStation Z Pro Type 6221: User's Guide
Suggested action
Call for service.
Verify that:
v All cables and cords are connected securely to the rear of the computer and
attached options.
v When the computer is turned on, air is flowing from the rear of the computer at
the fan grill. If there is no airflow, the fan is not working. This causes the
computer 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.
If the problem remains, call for service.
Suggested action
Verify that:
v The keyboard cable is securely connected to the system, and the keyboard and
mouse cables are not reversed.
v Both the computer and the monitor are turned on.
v Try using another keyboard.
If the problem remains, call for service.
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.
v Both the computer and the monitor are turned on.
v Try using another mouse or pointing device.
If the problem remains, call for service.