Dell Inspiron 17 (5749, Early 2015) - Manual (Page 70)

Removing 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.
WARNING: The heat sink may become hot during normal operation.
Allow sufficient time for the heat sink to cool before you touch it.
CAUTION: To ensure maximum cooling for 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 cover .
3 Remove the wireless card .
4 Remove the memory module .
5 Follow the procedure from step 1 to step 2 in removing the optical drive .
6 Follow the procedure from step 1 to step 3 in removing the hard drive .
7 Remove the keyboard .
8 Remove the palm rest .
9 Remove the battery-connector board .
10 Remove the optical-drive connector board .
11 Follow the procedure from step 1 to step 10 in removing the system
board .
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