Lenovo PC 300GL User Guide (including system setup and option in - Page 123

General Problems, Intermittent Problems, Monitor Problems, Action

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Monitor Problems Only the cursor appears. Wrong characters appear on the screen. Action Have the computer serviced. Have the computer serviced. General Problems General Problems The computer does not start when you press the power switch. Other problems. Action Verify that: 1. All cables are securely connected to the proper connectors on the computer. For the location of the connectors, see "Connecting Computer Cables" on page 10. 2. The computer cover is properly installed. If the problem cannot be corrected, have the computer serviced. Have the computer serviced. Intermittent Problems Intermittent Problems A problem occurs only occasionally and is difficult to detect. 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 airflow 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 the problem cannot be corrected, have the computer serviced. Chapter 8. Troubleshooting 109

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General Problems
Intermittent Problems
Monitor Problems
Action
Only the cursor appears.
Have the computer serviced.
Wrong characters appear
on the screen.
Have the computer serviced.
General Problems
Action
The computer does not
start when you press the
power switch.
Verify that:
1.
All cables are securely connected to the proper
connectors on the computer.
For the location of
the connectors, see “Connecting Computer Cables”
on page
10.
2.
The computer cover is properly installed.
If the problem cannot be corrected, have the computer
serviced.
Other problems.
Have the computer serviced.
Intermittent Problems
Action
A problem occurs only
occasionally and is
difficult to detect.
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 airflow 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 the problem cannot be corrected, have the computer
serviced.
Chapter 8.
Troubleshooting
109