IBM 68666AU User Guide - Page 119

Intermittent problems, Keyboard, mouse, or pointing-device problems, Action, or pointing

Page 119 highlights

Intermittent problems Intermittent problems A problem occurs only occasionally and is difficult to diagnose. Action Verify that: 1. All cables and cords are securely connected to the rear of the computer and attached devices. 2. When the computer is turned on, the fan grill is not blocked (there is air flow around the grill), and the fans are working. If air flow is blocked or the fans are not working, the computer might overheat. 3. If SCSI devices are installed, the last external device in each SCSI chain is terminated correctly. (See your SCSI documentation.) If you cannot correct the problem, have the computer serviced. Keyboard, mouse, or pointing-device problems Keyboard, mouse, or pointingdevice problems All or some keys on the keyboard do not work. The mouse or pointing device does not work. Action Verify that: 1. The computer and the monitor are turned on. 2. The keyboard cable is securely connected to the keyboard connector on the computer. For the location of the keyboard connector, see "Connecting computer cables" on page 13. If you cannot correct the problem, have the keyboard and computer serviced. Verify that: 1. The mouse or pointing-device cable is securely attached to the proper connector on the computer. Depending on the type of mouse you have, the mouse cable will connect to either the mouse or serial connector. To find the mouse and serial connectors, see "Connecting computer cables" on page 13. 2. The device drivers for the mouse are installed correctly. If you cannot correct the problem, have the device and computer serviced. Chapter 6. Troubleshooting 103

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Intermittent problems
Keyboard, mouse, or pointing-device problems
Intermittent problems
Action
A problem occurs only
occasionally and is
difficult to diagnose.
Verify that:
1.
All cables and cords are securely connected to
the rear of the computer and attached devices.
2.
When the computer is turned on, the fan grill is
not blocked (there is air flow around the grill),
and the fans are working.
If air flow is blocked
or the fans are not working, the computer might
overheat.
3.
If SCSI devices are installed, the last external
device in each SCSI chain is terminated correctly.
(See your SCSI documentation.)
If you cannot correct the problem, have the computer
serviced.
Keyboard, mouse,
or pointing-
device problems
Action
All or some keys on
the keyboard do not
work.
Verify that:
1.
The computer and the monitor are turned on.
2.
The keyboard cable is securely connected to the
keyboard connector on the computer.
For the
location of the keyboard connector, see
“Connecting computer cables” on page
13.
If you cannot correct the problem, have the keyboard
and computer serviced.
The mouse or pointing
device does not work.
Verify that:
1.
The mouse or pointing-device cable is securely
attached to the proper connector on the
computer.
Depending on the type of mouse you
have, the mouse cable will connect to either the
mouse or serial connector.
To find the mouse
and serial connectors, see “Connecting computer
cables” on page
13.
2.
The device drivers for the mouse are installed
correctly.
If you cannot correct the problem, have the device
and computer serviced.
Chapter 6.
Troubleshooting
103