Epson EQUITY 3865X/20 PLUS - Manual (Page 137)

3. If an option card is blocking access to the SIMM sockets,
follow the steps on page 6-9 to remove it.
4. Use your fingers or two small screwdrivers to pull away the
tabs that secure the SIMM at each end. Be careful not to
pull the tabs too far, or they may break.
tab
Installing and Removing Options
6-17