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Installing SDRAM (SODIMMs)
System Memory
The upper edge of the SBC-558P contains one sockets for 144 pins
dual inline memory module (SODIMM). The socket uses 3.3 V
unbuffered synchronous (SDRAM). SODIMM is available in capaci-
ties of 16, 32, 64, 128, or 256 MB. The socket can be filled in the
SODIMM of any size, giving your SBC-558P 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 SODIMM
Your SBC-558P can accept both regular and PC-100 SDRAM
SODIMM Module(with or without parity). The SBC-558P can only
accept PC-100 SDRAM SODIMM Module.
Single-sided modules are typically 16 or 64 MB; double-sided
modules are usually 32 or 128 MB.
Memory Installation Procedures
To install SODIMM, first make sure the two handles of the
SODIMM socket are in the "open" position. i.e. The handles remain
outward. Slowly slide the SODIMM 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.
SBC-558P Installation Guide
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