Disconnect the chassis intrusion switch cable from the system board.
Note the routing of the chassis intrusion cable as you remove it from the chassis. Chassis hooks may hold the cable in place inside the chassis.
Using a flat blade screwdriver, gently slide the chassis intrusion switch out of its slot, and
remove the switch and its attached cable from the computer.
Small Form Factor Computer
Small Desktop Computer
Desktop Computer
Small Mini-Tower Computer
Mini-Tower Computer
Replacing the Chassis Intrusion Switch
Gently slide the chassis intrusion switch into its slot and reconnect the cable to the system
board.
Close the computer cover.
Attach the computer stand, if it is used.
NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer.
Connect your computer and devices to electrical outlets, and turn them on.
Resetting the Chassis Intrusion Detector
Turn on (or restart) your computer.
When the blue DELL™ logo appears, press <F2> immediately.
If you wait too long and the operating system logo appears, continue to wait until you see the Microsoft® Windows® desktop. Then shut down your computer and try again.
Select the Chassis Intrusion option and then press the left- or right-arrow key to select Reset.
Change the setting to On, On-Silent, or Disabled.
NOTE: The default setting is On-Silent.
Press <Alt><B> to restart the computer and implement your changes.
