Dell R900 manual Installing a Processor Heat Sink, Removing a Processor, 104

5If the processor heat sink has not separated from the processor, carefully rotate the processor heat sink in a clockwise, then counterclockwise, direction until it releases from the processor. Do not pry the processor heat sink off of the processor.

NOTICE: If you are going to reinstall the same processor and processor heat sink, ensure that you do not disturb the thermal grease on either the processor or the processor heat sink.

6Lift the processor heat sink off of the processor and set the processor heat sink upside down so as not to contaminate the thermal grease.

Installing a Processor Heat Sink

NOTE: New processor heat sinks have Thermal Interface Material (TIM) pre- applied. If installing a new processor heat sink, ignore step 1 and step 2 below.

1Using a clean lint-free cloth, remove the existing thermal grease from the processor heat sink.

2Apply thermal grease evenly to the top of the processor while taking care not to use excessive amounts of grease, which could leak out the sides and cause damage to the processor when the heat sink is secured.

3Place the processor heat sink onto the processor. See Figure 3-20.

4Squeeze the sides of the heat-sink retention clip together and press down on the blue tab. When the lower corners of the clip fit into the slots in the socket, release the sides of the clip to lock the processor heat sink in place. See Figure 3-19.

Removing a Processor

1Remove the processor heat sink. See "Removing a Processor Heat Sink" on page 101.

2Pull the socket-release lever straight up until the processor is released from the socket. See Figure 3-20.

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Installing System Components