Dell OptiPlex 3080 Small Form Factor Service Manual page 66

Steps
1. To remove the dummy metal bracket, insert a flathead screwdriver in the hole of the bracket, push the bracket to release
the bracket, and then lift the bracket out from the system.
2. Insert the optional I/O module into its slot from the inside of your computer.
3. Connect the I/O cable to the connector on the system board .
4. Replace the two (M3X3) screws to secure the optional I/O module to the system.
Next steps
1. Install the chassis fan.
2. Install the fan duct
3. Install the front bezel.
4. Install the side cover.
5. Follow the procedure in after working inside your computer.
66 Field service information