Dell Inspiron 20 (3043, Mid 2014) - Manual (Page 54)

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 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 Follow the instructions from step 1 to step 7 in “Removing the Back
Cover ”.
2 Remove the wireless card .
3 Follow the instructions from step 1 to step 11 in “Removing the System
Board ”.
Procedure
1 Loosen the captive screws that secure the heat sink to the system board.
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