Chapter 30: Replacing The Heat Sink; Procedure; Post-Requisites - Dell Inspiron 24 3477 All-in-One Service Manual

NOTE: Before working inside your computer, read the safety information that shipped with your computer and follow
the steps in Before working inside your
working inside your computer. For more safety best practices, see the Regulatory Compliance home page at
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

Steps
1. Slide the heat sink under the fan shroud and between the fan.
2. Align the captive screws on the heat sink with the screw holes on the system board and the display assembly base.
3. Tighten the captive screw that secures the heat sink to the display-assembly base.
4. In sequential order (as indicated on the heat sink), tighten the captive screws that secure the heat sink to the system board.

Post-requisites

Steps
1. Replace the system-board
2. Replace the back cover.
3. Replace the stand.
computer. After working inside your computer, follow the instructions in
shield.
Replacing the heat sink
30
After
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Replacing the heat sink 45