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2.11 Cooling Module 2 Troubleshooting
2.11 Cooling Module
To check if the computer’s cooling module is defective or malfunctioning, follow the
troubleshooting procedures below as instructed.
Procedure 1 Test Program Check
Procedure 2 Connector Check and Replacement Check
Procedure 1 Test Program Check
Execute the Fan On/off test program available as part of the maintenance test program. This test
program checks the cooling module. Insert the diagnostics bootable CD in the computer's CD,
turn on the computer and run the test. See Chapter 3 for information on how to perform the test.
If any error is detected by the test, go to Procedure 2.
Procedure 2 Connector Check and Replacement Check
The cooling module is connected to the system board. If the cooling module malfunctions, there
may be a bad connection between the cooling module and the system board or either might be
faulty.
Disassemble the computer following the steps described in Chapter 4 and perform the following
checks:
Check 1 Make sure the cooling module has been firmly connected to the connector on
the system board. Also make sure that the tape is not stuck to any part of the
fan and that the fan is free of foreign matter.
Cooling module
System board
CPU
If the connector is disconnected, connect it firmly to the system board and return
to Procedure 1. If the tape is stuck to any part of the fan, stick it back to the
specified point. If a foreign matter is found in the fan, remove it and then return
to Procedure 1. If there is still an error, perform Check 2.
Check 2 The cooling module may be faulty. Replace it with a new one following the
steps in Chapter 4. If the cooling module is still not functioning properly,
perform Check 3.
Check 3 The memory may be defective. Replace the memory module with a new one
following the steps described in Chapter 4. If the problem persists, perform
Check 4.
Check 4 The CPU may be faulty. Disassemble the computer following the steps
described in Chapter 4 and replace the CPU with a new one.
2-21 Satellite/Satellite Pro/L630/L635 Maintenance Manual