Epson EL 486UC - Manual (Page 61)

4. Use your fingers or a small screwdriver to carefully pull
away the metal tabs that secure the SIMM at each end, as
shown below.
5. As you pull away the tabs, the SIMM falls to the side.
Remove it from the socket.
6. If necessary, follow the same procedure to remove the other
SIMM.
7. If you are inserting different SIMMs, follow the instructions
on page 4-l1 to install them.
8. Replace any option cards you removed, as described below.
Installing and Removing Options 4-13