IBM SBC-658 manual Installing Sdram DIMMs, System Memory, Supplementary information about Dimm

Installing SDRAM (DIMMs)

System Memory

The upper edge of the SBC-658 contains one sockets for 168 pins dual inline memory module (DIMM). The socket uses 3.3 V unbuffered synchronous (SDRAM). DIMM is available in capaci- ties of 16, 32, 64, 128, or 256 MB. The socket can be filled in the DIMM of any size, giving your SBC-658 single board computer between 16 and 256 MB of memory.

Supplementary information about DIMM

The SBC-658 can only accept PC-100 SDRAM DIMM Module.

Single-sided modules are typically 16 or 128 MB; double-sided modules are usually 32 or 256 MB.

Memory Installation Procedures

To install DIMM, first make sure the two handles of the DIMM socket are in the "open" position. i.e. The handles remain outward. Slowly slide the DIMM module along the plastic guides on both ends of the socket. Then press the DIMM module right down into the socket, until you hear a click. This is when the two handles have automatically locked the memory module into the correct position of the DIMM socket. (See Figure below) To take away the memory module, just push both handles outward, and the memory module will be ejected by the mechanism in the socket.

Chapter 2 Installation 17