Dell OptiPlex 7450 All-In-One Owner's Manual

Installing the system fan

1. Align and place the system fan in the slot on the chassis.
2. Tighten the screws to secure the system fan to the system board.
3. Connect the system fan cable to the connector on the system board.
4. Install the:
   1. VESA mount bracket
   2. power supply unit
   3. system board shield
   4. speaker cover
   5. cable cover
   6. back cover
   7. stand
5. Follow the procedure in After working inside your computer.