Dell OptiPlex Small Form Factor 7020 Owner's Manual page 96

Figure 49. Installing the serial module
Steps
1. Using a screwdriver, remove the serial module cover from the chassis.
NOTE: This step is applicable only when the serial module is installed for the first time.
NOTE: To remove the optional-module cover, insert a flat-head screwdriver in the hole of the cover, push the cover to
release it, and then lift the cover off the chassis .
2. Connect the serial-module cable to its connector (KB MS, SERIAL) on the system board
3. Insert the serial module into the slot on the chassis.
4. Replace the two screws (M3) that secure the serial module to the chassis.
Next steps
1. Install the processor fan and heat-sink
2. Install the disk-drive cage.
3. Install the 3.5-inch hard
4. Install the front bezel.
5. Install the side cover.
6. Follow the procedure in
96 Removing and installing Field Replaceable Units (FRUs)
assembly.
drive, if applicable.
After working inside your computer.
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