Dell 620s manual Removing the Processor Fan and Heat-Sink Assembly

4.Connect the chassis fan cable to the system board connector, FAN_SYS1 (see System Board Components).

5.Replace the computer cover (see Replacing the Computer Cover).

Processor Fan and Heat-Sink Assembly

WARNING: Despite having a plastic shield, the processor fan and heat-sink assembly may be very hot during normal operation. Ensure that it has had sufficient time to cool before you touch it.

CAUTION: The processor fan and heat-sink assembly is a single unit. Do not try to remove the fan separately.

Removing the Processor Fan and Heat-Sink Assembly

1.Follow the instructions in Before You Begin.

2.Remove the computer cover (see Removing the Computer Cover).

3.Disconnect the processor fan cable from the system board connector, FAN_CPU (see System Board Components).

4.Using a flat-blade screwdriver, loosen the four captive screws that secure the processor fan and heat-sink assembly to the system board.

CAUTION: When you remove the processor fan and heat-sink assembly, lay it upside down or on its side to avoid damaging the heat-sink thermal interface.

5. Lift the processor fan and heat-sink assembly out of the computer.

1processor fan cable 2 processor fan and heat-sink assembly

3captive screws (4)

Replacing the Processor Fan and Heat-Sink Assembly

1.Follow the instructions in Before You Begin

2.Clean the thermal grease from the bottom of the heat-sink.

CAUTION: Ensure that you apply new thermal grease. New thermal grease is critical for ensuring adequate thermal bonding, which is a requirement for optimal processor operation.

3.Apply new thermal grease to the top of the processor.

4.Place the processor fan and heat-sink assembly over the processor.