Epson Progression U12 - Manual (Page 83)

Installing SIMMs
Follow these steps to install SIMMs:
1. Refer to the “Main System Board Map” on page 3-3 to locate
the SIMM sockets (at the back of the board, toward the
middle).
2.
If you are installing two SIMMs, it is easiest to install the first
SIMM in the left socket (labelled U12) first. Position it at an
angle, as shown below, with the components facing toward
the
option slots.
Make sure you orient the SIMM in the correct direction before
you push it into the socket.
3-14 Installing and Removing Options