Removing The Processor Fan And Heat-Sink Assembly; Replacing The Processor Fan And Heat-Sink Assembly - Dell Inspiron 620s Service Manual

4. Connect the chassis fan cable to the system board connector, FAN_SYS1 (see
5. Replace the computer cover (see
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
2. Remove the computer cover (see
3. Disconnect the processor fan cable from the system board connector, FAN_CPU (see
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.
1 processor fan cable 2 processor fan and heat-sink assembly
3 captive 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.
Replacing the Computer Cover).
Begin.
Removing the Computer Cover).
System Board Components).
System Board Components).