Installing Optional I/O Modules (Hdmi/Vga/Dp/Serial) - Dell OptiPlex 3000 Micro Service Manual

Steps
1. Remove the two (M3x3) screws that secure the optional I/O modules or two (M2x5) cross type screws that secure the
serial module to the computer chassis.
2. Disconnect the I/O-module cable from the connector on the system board.
3. Remove the I/O module from the computer.

Installing optional I/O modules (HDMI/VGA/DP/Serial)

Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
36 Removing and installing components