General Problems; Intermittent Problems - IBM 6643 User Manual

General problems

Symptom
The computer does not
start when you press the
power button.

Intermittent problems

Symptom
A problem occurs only
occasionally and is
difficult to repeat.
Action
Verify that:
1. All cables are securely connected to the proper
connectors on the computer. For the location of the
connectors, see "Connecting cables" on page 8.
2. The computer cover is properly installed.
If you cannot correct the problem, have the computer
serviced.
Action
Verify that:
1. All cables and cords are securely connected to the
computer and attached devices.
2. When the computer is turned on, the fan grill is not
blocked (there is airflow around the grill), and the fans
are working. If air flow is blocked or the fans are not
working, the computer might overheat.
If you cannot correct the problem, have the computer
serviced.
Chapter 6. Troubleshooting
59