Epson 10020 - Manual (Page 113)

3. Secure the cover by replacing the screws on both sides of
the computer. Snap the plastic inserts into the side feet.
4. Replace the back panel and the three screws along the top
edge.
5. Return the computer to its original position and reconnect
it to the monitor, the keyboard, and any peripherals you
have.
6. Check to make sure the power switch is off. Reconnect the
power cable to the back of the computer and to an
electrical outlet.
Post-Installation Setup
After you install an option card, you may need to change the
computer's DIP switches to update the configuration
information. For example, if you install an EGA card, you need
to change switches 1-5 and 1-6 so the computer knows what
type of display adapter you are using. See Appendix A for
information about the DIP switches.
If you add a second serial port, you may want to run the Setup
program to define the data transmission parameters for that
port. See Appendix A for instructions on using the Setup
program.
You may also need to add some commands in the configuration
files on your system disk as well. See the description of
CONFIG.SYS in your MS-DOS Reference Manual for
instructions.
Installing Option Cards 4-9