Dell OptiPlex GX400 User's Guide download pdf (Page 35)

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Microprocessor Cooling Fan

Dell™OptiPlex™GX400ServiceManual

Removing the Microprocessor Cooling Fan

Replacing the Microprocessor Cooling Fan

Removing the Microprocessor Cooling Fan

1. Turn off the computer and devices, disconnect them from their electrical outlets, wait at least 5 seconds, and then remove the computer cover.

2. Rotate the power supply away from the system board.

3. Remove the airflow shroud.

4. Disconnect the fan power cable from its connector on the system board (FAN). To locate this connector, see "System Board Components."

5. Gently pull the plastic locking tab back, and slide the fan toward the system board.

Removing the Microprocessor Cooling Fan

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6. Lift the fan out of the chassis.

Replacing the Microprocessor Cooling Fan

To replace the microprocessor cooling fan, perform the removal procedure in reverse.

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CAUTION: Before you perform this procedure, see "Precautionary Measures."

NOTICE: Before disconnecting a device from the computer or removing a component from the system board, verify that the standby power lights on the

system board has turned off. To locate this light, see "System Board Components."

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Dell OptiPlex GX400 User's Guide Page 35