Dell Inspiron 17R (5720, Mid 2012) - Manual (Page 83)

Heat Sink | 83
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.
1 Clean the thermal grease from the bottom of the heat sink and reapply it.
2 Align the screw holes on the heat sink with the screw holes on the
system board.
3 In sequential order (indicated on the heat sink), tighten the captive screws that
secure the heat sink to the system board.
Postrequisites
1 Follow the instructions from step 3 to step 11 in "Replacing the System Board" on
page 79.
2 Replace the fan. See "Replacing the Fan" on page 48.
3 Replace the palm rest. See "Replacing the Palm Rest" on page 41.
4 Replace the keyboard. See "Replacing the Keyboard" on page 18.
5 Replace the wireless Mini-Card. See "Replacing the Wireless Mini-Card" on page 33.
6 Replace the mSATA card. See "Replacing the mSATA Card" on page 37.
7 Follow the instructions from step 4 to step 5 in "Replacing the Optical Drive" on
page 29.
8 Follow the instructions from step 4 to step 6 in "Replacing the Hard Drive(s)" on
page 26.
9 Replace the memory module(s). See "Replacing the Memory Module(s)" on page 22.
10 Replace the base cover. See "Replacing the Base Cover" on page 20.
11 Replace the battery. See "Replacing the Battery" on page 13.
12 Follow the instructions in "After Working Inside Your Computer" on page 11.
book.book Page 83 Monday, October 8, 2012 4:17 PM