MATSONIC MS9147C Series, User Manual

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2: Mainboard Installation
11
Installing Memory Modules
This mainboard accommodates 168-pin 3.3V/184-pin 2.5V
unbuffered SDRAM memory modules. The memory chips must be
standard or registered SDRAM (Synchronous Dynamic Random
Access Memory).
The CPU supports 100/133MHz system bus. The SDRAM DIMMs
and DDRs can synchronously work with 100 MHz or operates over
a 133 MHz system bus.
You must install at least one memory module in order to use
the mainboard,
either SDRAM or DDR SDRAM, but you
cannot use them simultaneously
.
DDR SDRAM provides 800 MB/s or 1 GB/s data transfer
corresponding with the bus 100 MHz or 133 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 rather than the 168-pin 3.3V unbuffered DIMMs
used by SDRAM.
DIMM1
DIMM2 DDR1
DDR2