Epson Progression U12 - Manual (Page 71)

This chapter provides instructions for installing the options
listed above, and for changing the jumper settings inside the
computer. Be sure to check the jumper information if you
install or remove any options in your computer.
On the next page, you’ll find an illustration of your main
system board which shows the location of any components you
may need to locate.
All the instructions in this chapter assume you have removed
the computer’s cover; if not, see Chapter 2 for the procedure.
When you finish everything you need to do inside the
computer, return to Chapter 2 for instructions on replacing the
cover.
3-2 installing and Removing Options