Dell Inspiron 15-3559, Service Manual

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Removing 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.
WARNING: The heat sink may become hot during normal operation. Allow
sufficient time for the heat sink to cool before you touch it.
CAUTION: For maximum cooling of the processor, do not touch the heat
transfer areas on the heat sink. The oils in your skin can reduce the heat
transfer capability of the thermal grease.
Prerequisites
1 Remove the battery .
2 Remove the base panel .
3 Follow the procedure from step 1 to step 3 in “Removing the hard drive ”.
4 Remove the memory modules .
5 Remove the wireless card .
6 Remove the keyboard .
7 Follow the procedure from step 1 to step 8 in “Removing the palm rest ”.
8 Follow the procedure from step 1 to step 8 in “Removing the system board ”.
Procedure
1 Turn the system board over.
2 In sequential order, as indicated on the heat sink, loosen the captive screws that
secure the cooling assembly to the system board.
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