Dell Alienware 15 R4 - Removing the Heat-Sink Assembly; Prerequisites; Procedure

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
www.dell.com/regulatory_compliance.
WARNING: The heat sink may become hot during normal operation.
Allow sucient 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 wireless card.
3 Follow the procedure from step 1 to step 3 in "Removing the hard drive".
4 Remove the solid-state drive.
5 Remove the rear-I/O cover.
6 Remove the computer base.
7 Remove the battery.
8 Remove the memory modules.
9 Follow the procedure from step 1 to step 21 in “Removing the system board”.
Procedure
1 Turn the system-board assembly over.
2 Disconnect the fan cable from the system board.
3 Peel o the tape that secures the fan cable to the system board.
4 Disconnect the fan cable from the system board.
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