Epson Equity IIe User Manual page 157

Removing option cards to clear the main system board
To easily reach the jumpers on the main system board, you may
want to remove an option card. For example, the SP card may
block your access to jumper number 1. To remove the SP card,
follow these steps:
1.
Remove the retaining screw that secures the SP card at the
back panel of the computer. Be careful not to drop the
screw.
Installing Options
5-17