Heat Sink

Removing a 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 is not covered by warranty. Read and follow the safety instructions that came with the product.

1Remove the sled from the enclosure. See "Removing a Sled" on page 133.

2Remove the cooling shroud. See "Removing the Cooling Shroud" on page 141.

WARNING: The heat sink may be hot to touch for some time after the system has been powered down. Allow the heat sink to cool before removing it.

CAUTION: Never remove the heat sink from a processor unless you intend to remove the processor. The heat sink is necessary to maintain proper thermal conditions.

3Using a Phillips screwdriver, loosen one pair of diagonal retention screws that secure the heat sink to the system board. See screw sequence indicated on Figure 3-11.

4Loosen the other pair of retention screws. See Figure 3-11.

Figure 3-11. Heat Sink Screw Loosening Sequence

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CPU1

CPU2

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Installing System Components

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Dell C8220 owner manual Removing a Heat Sink, 143