Dell Precision 5540 - Power button with fingerprint reader -optional

Installing power button
Steps
1. Align the power button into the slot on the system chassis.
2. Replace the M1.6x3 (2) screws that secure the power button to the system board.
3. Install the:
a. Battery
b. Base cover
4. Follow the procedures in After Working Inside Your Computer.
Power button with fingerprint reader -optional
Removing power button with fingerprint reader
Steps
1. Follow the procedures in Before Working Inside Your Computer.
2. Remove the:
a. base cover
b. battery
3. Perform the following steps to remove the power button:
a. Remove the M1.6x3 (2) screws that secure the power button to the system board [1].
NOTE:
There are two power button options:
● Power button function with light indicator.
38 Disassembly and reassembly