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

Installing the OSD buttons board

1. Connect the cable to the OSD buttons board.
2. Affix the tape on the OSD buttons board.
3. Insert the OSD buttons board into the slot.
4. Align the metal plate on the OSD buttons board.
5. Tighten the screw to secure the OSD buttons board.
6. Install the:
   1. optical drive
   2. back cover
   3. stand
7. Follow the procedure in After working inside your computer.