Dell Inspiron 15-7559, Service Manual

Page: 68 / 98

Replacing the heat sink
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer . After working inside your
computer, follow the instructions in After working inside your
computer . For more safety best practices, see the Regulatory
Compliance home page at www.dell.com/regulatory_compliance.
CAUTION: Incorrect alignment of the heat sink can damage the
system board and processor.
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.
Procedure
1 Align the screw holes on the heat sink with the screw holes on the
system board.
2 In sequential order (indicated on the heat-sink), tighten the captive
screws that secure the heat sink to the system board.
Post-requisites
1 Follow the procedure from step 4 to step 8 in “ Replacing the system
board ”.
2 Replace the fans .
3 Replace the I/O board .
4 Follow the procedure from step 2 to step 6 in “ Replacing the palm rest ”.
5 Replace the keyboard .
6 Replace the wireless card .
7 Replace the memory modules .
8 Follow the procedure from step 4 to step 6 in “ Replacing the hard drive ”.
9 Replace the battery .
10 Replace the base cover .
68