Installing The Intrusion Switch - Dell OptiPlex 7440 All-In-One W11C Owner's Manual

5. Perform the following instructions as shown in the illustration:
a) Remove the screw that secures the intrusion switch to the chassis [1].
b) Slide and lift the intrusion switch to remove it from the computer [2].

Installing the intrusion switch

1. Place the intrusion switch in the slot on the computer.
2. Tighten the screw to secure the intrusion switch to the chassis.
3. Route intrusion switch cable along the retention clips on the chassis.
4. Connect the intrusion switch cable to the connector on the system board.
5. Install:
a) VESA mount bracket
b) power supply unit
c) system board shield
d) speaker cover
e) cable cover
f) back cover
g) stand
6. Follow the procedures in
52 Disassembly and reassembly
After working inside your computer.