Owners Manual

Removing and Installing System Components | 179
Installing the Heat Sink
CAUTION: Many repairs may only be done by a certified service technician. You
should only perform troubleshooting and simple repairs as authorized in your
product documentation, or as directed by the online or telephone service and
support team. Damage due to servicing that is not authorized by Dell is not
covered by your warranty. Read and follow the safety instructions that came
with the product.
1. Using a clean lint-free cloth, remove the thermal grease from
the heat sink.
2. Apply new thermal grease evenly to the center of the top of the
new processor.
CAUTION: Using excess thermal grease can cause grease to contact the
processor shield, which can cause contamination of the processor socket.
3. Place the heat sink on the processor. See Figure 3-19.
4. Using a Phillips screwdriver, tighten the four heat-sink retention
screws.
5. Replace the system-board assembly. See "Installing a System-
Board Assembly" on page 173.