AMPTRON M810D Series, Руководство пользователя

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2: Mainboard Installation
11
Install Memory
The mainboard has two 168-pin/184-pin DIMM sockets for
SDRAM/DDR (Double Data Rate) SDRAM system memory
modules. You must install at least one memory module in order to
work out the mainboard,
either SDRAM or DDR SDRAM, but
you can not use them simultaneously.
DDR SDRAM provides 800 MB/s or 1 GB/s data transfer rate
corresponding with the bus 100 MHz or 200 MHz. It doubles the
rate to 1.6 GB/s and 2.1 GB/s by transferring data on both the
rising and falling edges of the clock. DDR SDRAM uses additional
power and ground lines and requires 184-pin 2.5V unbuffered
DIMM module reather than the 168-pin 3.3V unbuffered DIMMs
used by SDRAM.
For this mainboard, the maximum memory size is 1GB.
The edge connectors on the memory modules have cut outs,
coinciding with spacers in the DIMM sockets that can only install
the memory module in the correct orientation.
To install a module, push the retaining latches at either end of the
socket outwards. Position the memory module correctly and insert
it into the DIMM socket. Press the module down into the socket so
that the retaining latches rotate up and secure the module in place
by fitting into notches on the edge of the module.
SDR1
SDR2
DDR1
DDR2