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Processor Heat Sink/Fan Assembly
Dell™Vostro™420/220/220sServiceManual
Removing the Processor Heat Sink/Fan Assembly
Replacing the Processor Heat Sink/Fan Assembly

Removing the Processor Heat Sink/Fan Assembly

1. Follow the procedures in Before Working on Your Computer.
2. Remove the computer cover (see Removing the Computer Cover).
3. Disconnect the heat sink/fan assembly cable from the system board.
4. Loosen the four captive screws that attach the heat sink/fan assembly to the system board.
5. Lift the heat sink/fan assembly upward gently, and remove it from the computer. Lay the assembly with the fan facing downward, and with the thermal
grease facing upward.
CAUTION: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best
practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance.
CAUTION: To guard against likelihood of electric shock, laceration from moving fan blades, or other unexpected injuries, always unplug your
computer from the electrical outlet before removing the cover.
NOTICE: The procedure for removing and replacing the processor heat sink/fan assembly is identical for the Vostro 420, Vostro 220, and Vostro 220s
computers; the illustration provided is for example only and may not represent your particular computer precisely.
CAUTION: The heat sink/fan assembly may become very hot during normal operation. Be sure that it has had sufficient time to cool before you
touch it.
NOTICE: A strong thermal solution bond may exist between the processor and heat sink. Do not use excessive force to separate the heat sink/fan
assembly from the processor to avoid damaging the processor.
1
Phillips screwdriver
2
heat sink/fan assembly
3
heat sink/fan cable
4
system board fan connector
5
screw holes with rubber bushings (4)
6
captive screws (4)