Dell Precision 3460 Small Form Factor Service Manual page 70

Steps
1. Align and insert the optional PS2 module with the slot on the chassis.
2. Connect the PS2 cable to the connector on the system board.
3. Close the PCIe door.
Next steps
1. Install the heat-sink and fan
2. Install the front bezel.
3. Install the side cover.
4. Follow the procedure in
70 Removing and installing components
assembly.
after working inside your computer.