Dell Alienware 17 R2 (Early 2015) - Manual (Page 31)

Removing the wireless card
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.
Prerequisites
Remove the base panel .
Procedure
1 Remove the screw that secures the wireless-card bracket and the wireless
card to the system board.
2 Lift the wireless-card bracket off the wireless card.
3 Disconnect the antenna cables from the wireless card.
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