IBM 6643, User Manual

Page: 76 / 122

62
User Guide
General problems
Intermittent problems
Symptom Action
The computer does not
start when you press the
power button. 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.
Symptom Action
A problem occurs only
occasionally and is
difficult to repeat. 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.