HP Compaq dx7200 MT Reference Manual page 112

Removal and Replacement Procedures— Slim Tower (ST) Chassis
To reattach the Smart Cover Lock:
1. Install the Smart Cover Lock assembly on the inside of the rear panel with the metal arm 1
wrapped around the air vent grid on the back of the chassis.
2. Use the supplied tamper-resistant screw 2 to secure the Smart Cover Lock to the chassis.
7–4 390812-001 Service Reference Guide, dx7200