Epson 3865X Plus User Manual page 129

6. Gently push down on the SIMM and, at the same time,
turn the top of the SIMM to the left until the SIMM is
vertical and snaps into place between the tabs and the
retaining posts.
If the SIMM does not go in smoothly, do not force it-pull
it all the way out and try again.
Make sure the SIMM is fully inserted into the socket and
that the pins on the retaining posts protrude through the
holes in both ends of the SIMM.
7. Repeat steps 5 and 6 for each SIMM you want to install.
8. Replace any option card(s) you may have removed to access
the SIMM sockets. See "Installing an Option Card," on
page 5-10, for instructions.
Installing and Removing Options
5-23