Dell OptiPlex 7470 All-in-One Service Manual

Installing the Input and Output bracket

1. To install the Input and Output bracket (I/O) bracket:
   1. Align the slots on the Input and Output bracket (I/O) bracket with the ports on the system board [1].
   2. Replace the three screws (M3x5) that secure the I/O bracket to the display assembly base [2].
      
2. To install the PSU cable:
   1. Route back the power supply cables through the retention clips in the chassis [1].
   2. Slide and replace the power supply socket on the chassis [2].
   3. Replace the single (M3x5) screw securing the power supply socket to the I/O bracket [3].
      
3. Install the following components:
   1. Base cover
   2. System board shield
   3. Back cover
   4. Stand
4. Follow the procedure in After working inside your computer.