Dell OptiPlex 790 (Early 2011) - Manual (Page 22)

Installing The Chassis Intrusion Switch
1. Insert the intrusion switch into the bracket on the power supply and slide it
over to secure it.
2. Connect the intrusion cable to the system board.
3. Install the
drive cage .
4. Install the front bezel .
5. Install the cover .
6. Follow the procedures in After Working Inside Your Computer .
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