Prerequisites
Save and close all open files and exit all open applications.
Shut down your computer. For Windows operating system, click Start > Image: Power button Power > Shut down.
NOTE:If you are using a different operating system, see the documentation of your operating system for shut-down instructions.
Turn off all the attached peripherals.
Disconnect your computer and all attached devices from their electrical outlets.
Disconnect all attached network devices and peripherals, such as keyboard, mouse, and monitor from your computer.
CAUTION: To disconnect a network cable, unplug the cable from your computer.
Remove any media card and optical disc from your computer, if applicable.
Removing the side cover:
Loosen the two captive screws that secure the side cover to the chassis.
Slide the side cover towards the back of the computer.
Lift the side cover from the chassis.
Removing the intrusion switch:
Remove the intrusion-switch cable from the routing guides on the chassis.
Disconnect the intrusion-switch cable from the connector on the system board.
Slide and lift the Intrusion switch away from the computer.
Installing the Intrusion switch:
Slide the intrusion switch into the slot on the chassis.
Route the intrusion-switch cable through the routing guides on the chassis.
Connect the intrusion-switch cable to the connector on the system board.
Installing the side cover:
Align the tabs on the side cover with the slots on the chassis.
Slide the side cover towards the front of the computer.
Tighten the two captive screws to secure the side cover to the chassis.
Replace all screws and ensure that no stray screws remain inside your computer.
Connect any external devices, peripherals, or cables you removed before working on your computer.
Replace any media cards, discs, or any other components that you removed before working on your computer.
Connect your computer and all attached devices to their electrical outlets.
Turn on your computer.
