MSI MS-7181 - Manual (Page 22)

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M S-7181 M icro-ATX M ainboard
The mainboard provides two slots for 184-pin DDR SDRAM DIMM (Double In-Line
Memory Module) modules and supports up to 2GB memory size. You can install
PC3200/DDR400, PC2700/DDR333 & PC2100/DDR266 modules on the DDR DIMM slots
(DDR 1~2).
For the updated supporting memory modules, please visit http://www.msi.com.tw/
program/products/mainboard/mbd/pro_mbd_trp_list.php.
Memory
DDR DIMM Slots
(DIMM1~2)
Introduction to DDR SDRAM
DDR (Double Data Rate) SDRAM is similar to conventional SDRAM, but doubles the
rate by transferring data twice per cycle. It uses 2.5 volts as opposed to 3.3 volts
used in SDR SDRAM, and requires 184-pin DIMM modules rather than 168-pin DIMM
modules used by SDR SDRAM. High memory bandwidth makes DDR an ideal solution
for high performance PC, workstations and servers.