To determine if the computer’s FAN port is functioning properly, perform the following
procedures. Figure 2-21 outlines the process. Start with Procedure 1 and continue as
instructed.
Procedure 1: Diagnostic check
Procedure 2: Connector and replacement check
Procedure 1 Diagnostic check
Run the test and Diagnostics Program, which will automatically execute the FAN Test.
Refer to Chapter 3, Tests and Diagnostics for more information on how to run the program.
If an error is located, go to Procedure 2. If an error does not occur, the FAN is functioning
ok.
Procedure 2 Connector and replacement check
The FAN and or system board may be disconnected or damaged. Disassemble the computer
following the steps described in Chapter 4, Replacement Procedures and perform the
following checks.
Check 1 Make sure the FAN cable is firmly connected to the FAN port of the system
board.
If the connection is loose, reconnect firmly and repeat Procedure 2. If there is still
an error, go to Check 2.
Check 2 The FAN may be damaged. Replace it with a new one and repeat Procedure 2. If
the problem still exists, perform Check 3.
Check 3 The system board may be damaged. Replace it with a new one following the
instructions in Chapter 4.
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