
- When installing this option, turn OFF the main power and unplug the power cord from the wall socket. If installing without turning OFF the main power, an electric shock or a malfunction may occur.
- Remove the rear cover [A].

- Remove the controller box cover [A].
Red Circle: Remove / Blue Circle: Loosen
- Release the latches and remove the standard 2GB DIMM [A].

- Insert the Memory Unit Type M37 4GB into the SDRAM socket.
Push the release latches [A] until they slip into the notch on the edge of the SDRAM.
- Reattach the controller box cover and rear cover.
- Turn ON the main power.
- Print out the system setting list to make sure that the memory unit is recognized properly.