Dell Inspiron 20 (3048, Early 2014) - Manual (Page 61)

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 dell.com/regulatory_compliance.
CAUTION: Incorrect alignment of the heat sink can cause damage to
the system board and processor.
NOTE: The original thermal grease can be reused if the original system
board and fan are reinstalled together. If either the system board or the
fan is replaced, use the thermal pad provided in the kit to make sure that
thermal conductivity is achieved.
Procedure
1 Clean the thermal grease from the bottom of the heat sink and reapply
the thermal grease.
2 Align the captive screws 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.
4 Replace the screw that secures the heat sink to the display-panel base.
Post-requisites
1 Replace the system-board shield .
2 Replace the back cover .
3 Follow the procedure from step 3 to step 5 in “Replacing the Stand
Assembly ”.
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