Dell Precision 330 - Manual (Page 50)

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Microprocessor Cooling Fan
Dell Precision™ WorkStation 330 Systems Service Manual
Desktop Chassis
Mini Tower Chassis
Desktop Chassis
l Removing the microprocessor cooling fan
l Replacing the microprocessor cooling fan
Removing the Microprocessor Cooling Fan (Desktop Chassis)
1. Turn off the computer and peripherals, 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 " or " Interior Service
Label ."
5. Gently pull the plastic locking tab back, and push the fan downward to disengage the four anchor tabs holding the fan to the back chassis wall.
Removing the Microprocessor Cooling Fan (Desktop Chassis)
6. Lift the fan out of the chassis.
Replacing the Microprocessor Cooling Fan (Desktop Chassis)
To replace the microprocessor cooling fan, perform the removal procedure in reverse.
Mini Tower Chassis
l Removing the microprocessor cooling fan
CAUTION: Before you perform this procedure, see " Precautionary Measures ."
NOTICE: Before disconnecting a peripheral from the system or removing a component from the system board, verify that the standby power indicator on the
system board has turned off. To locate this indicator, see " System Board Components " or " Interior Service Label ."