Epson 500 Series - Manual (Page 59)

3. Carefully press the module straight into the socket. The
connector and socket are designed so they fit together only if
you have aIigned them correctly; so do not force them. If you
have trouble, remove the module and try again.
4. When the connector is firmly attached to the socket, insert and
tighten the screw on the left side of the module.
5.Replace the keyboard as described on page 4-17.
After you reassemble your computer, you need to run the setup
program to make sure it recognizes the new memory amount. As
soon as you turn on the computer, it wiIl prompt you to run Setup
because of the memory mismatch. See Chapter 5 for instructions.
If you later remove a memory module, be sure to run the Setup
Program again.
4-14 Connecting Optional Devices