Dell Alienware x16 R1 Service Manual page 74

Steps
1. Remove the four screws (M2x2.5) that secure the I/O board to the palm-rest and keyboard assembly.
2. Remove the tape that secures the IO daughter board cable to the palm-rest and keyboard assembly.
3. Disconnect and remove the IO daughter board cable from the IO daughter board.
4. Lift the I/O board off the palm-rest and keyboard assembly.
Installing the I/O board
Prerequisites
If you are replacing a component, remove the existing component before performing the installation process.
About this task
The following image(s) indicate the location of the I/O board and provides a visual representation of the installation procedure.
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