Installing Dram (Dimms); System Memory; Supplementary Information About Dimm; Memory Installation Procedures - Aaeon SBC-558 Manual

Installing SDRAM (DIMMs)

System Memory

The upper edge of the SBC-558 contains one sockets for 144 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-558 single board computer
between 16 and 256 MB of memory.
Note: There were two memory modules in the original design.
Because of thermal and mechnical limitation, we remove one of the
memory socket.

Supplementary information about DIMM

Your SBC-558 can accept both regular and PC-100 SDRAM
DIMM Module(with or without parity). The SBC-558 can only
accept PC-100 SDRAM DIMM Module.
Single-sided modules are typically 16 or 64 MB; double-sided
modules are usually 32 or 128 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 SODIMM 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 SODIMM 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.
14 SBC-558 User Manual