Dell C6145 manual Heat Sinks, Removing the Heat Sink

1Align the air ducts to the system-board assembly and heat sinks by the rivet holes. See Figure 3-7.

2Replace the rivets to secure the air ducts to the system-board assembly and heat sinks. See Figure 3-7.

Heat Sinks

Removing 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.

1Turn off the system, including any attached peripherals, and disconnect the system from its electrical outlet.

2Remove the system-board assembly. See “Removing a System-Board Assembly" on page 87.

3Remove the air duct(s). See “Removing the Air Duct" on page 88.

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 for proper thermal conditions.

4Using a Phillips screwdriver, loosen one of the heat-sink retention screws. See Figure 3-8.

Wait for 30 seconds for the heat sink to loosen from the processor.

5Remove the other heat-sink retention screw.

6Gently lift the heat sink off the processor and set the heat sink aside with thermal grease side facing up.

90 Installing System Components