Replacing the Heat Sink

Procedure

NOTE: The original thermal grease can be reused, if the original system board and heat sink are reinstalled together. If either the system board or the heat sink is replaced, use the thermal pad provided in the kit to ensure that thermal conductivity is achieved.

1Clean the thermal grease from the bottom of the heat sink and reapply it.

2Align the screw holes on the heat sink with the screw holes on the system board.

3In sequential order (indicated on the heat sink), tighten the captive screws that secure the heat sink to the system board.

Postrequisites

1Follow the instructions from step 3 to step 11 in "Replacing the System Board" on page 79.

2Replace the fan. See "Replacing the Fan" on page 48.

3Replace the palm rest. See "Replacing the Palm Rest" on page 41.

4Replace the keyboard. See "Replacing the Keyboard" on page 18.

5Replace the wireless Mini-Card. See "Replacing the Wireless Mini-Card" on page 33.

6Replace the mSATA card. See "Replacing the mSATA Card" on page 37.

7Follow the instructions from step 4 to step 5 in "Replacing the Optical Drive" on page 29.

8Follow the instructions from step 4 to step 6 in "Replacing the Hard Drive(s)" on page 26.

9Replace the memory module(s). See "Replacing the Memory Module(s)" on page 22.

10Replace the base cover. See "Replacing the Base Cover" on page 20.

11Replace the battery. See "Replacing the Battery" on page 13.

12Follow the instructions in "After Working Inside Your Computer" on page 11.

Heat Sink

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Dell 17R-7720, 17R-5720 owner manual Replacing the Heat Sink