Dell Alienware 15 R4 - Removing the Coin-Cell Battery; Prerequisites; Procedure

Removing the coin-cell battery
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.
CAUTION: Removing the coin-cell battery resets the BIOS setup
program’s settings to default. It is recommended that you note the BIOS
setup program’s settings before removing the coin-cell battery.
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.
Procedure
1 Peel the tape to access the coin-cell battery cable on the system board.
2 Disconnect the coin-cell battery cable from the system board.
3 Note the cable routing and remove the coin-cell battery cable from the
routing guide on the palm-rest assembly.
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