Epson EISA Desktop - Manual (Page 84)

Math Coprocessor
A math coprocessor speeds up the numeric calculations your
computer performs when using some applications. It also
increases the speed at which graphic images are displayed on
your monitor when you use graphics-oriented software.
You can install the following coprocessors:
Coprocessors
Installing a Math Coprocessor
Carefully follow the steps below to install a math coprocessor.
1. Remove the processor board from the computer. See page 5-7
for instructions.
2. Place the processor board on your work surface so that the
board’s connectors are closest to you and the top edge of
the board is away from you. Locate the math coprocessor
socket(s). (See the illustration on page 5-3 if necessary.)
Installing and Removing Options 5-9