Dell Inspiron 15 (3531, Mid 2014) - Manual (Page 51)

Replacing the Heat-Sink
Assembly
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 dell.com/regulatory_compliance.
CAUTION: Incorrect alignment of the heat sink can cause damage to
the system board and processor.
Procedure
1 Clean the thermal grease from the bottom of the heat-sink assembly and
reapply it.
2 Align the screw holes on the heat-sink assembly with the screw holes on
the system board.
3 In sequential order (indicated on the heat-sink assembly), replace the
screws that secure the heat-sink assembly to the system board.
4 Connect the fan cable to the system board.
Post-requisites
1 Follow the procedure from step 2 to step 7 in “Replacing the System
Board ”.
2 Replace the palm rest .
3 Replace the wireless card .
4 Replace the keyboard .
5 Follow the procedure from step 3 to step 5 in “Replacing the Hard Drive ”.
6 Replace the base cover .
7 Replace the battery .
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