Epson Equity 320SX PLUS - Manual (Page 105)

Setting the Jumpers
The illustration below shows the locations of the jumpers on
your computer’s main system board.
A jumper’s setting is determined by where the jumper is placed
on the pins. It connects either pin A and the middle pin
(position A) or pin B and the middle pin (position B), as shown
below.
To move a jumper from one position to the other, use
needle-nose pliers or tweezers to pull it off its pins and gently
move it to the desired position.
Installing and Removing Options 6-3