Dell Inspiron 15-7559, 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 base cover .
2 Remove the battery .
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 7 in “ Removing the palm rest ”.
8 Remove the I/O board .
9 Remove the fans .
10 Follow the procedure from step 1 to step 7 in “ Removing the system
board .
Procedure
NOTE: The appearance of the heat sink on your computer may differ
from the image shown in this chapter.
1 Place the system board on a clean and flat surface.
2 In sequential order (indicated on the heat-sink), loosen the captive
screws that secure the heat sink to the system board.
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