Memory; Introduction To Ddr Sdram - MSI 651M-V User Manual

The mainboard provides two 184-pin unbuffered DDR200/DDR266/DDR333
DDR SDRAM, and supports the memory size up to 2GB. To operate properly, at least
one DIMM module must be installed.
For the uplated supporting memory modules, please visit http://www.msi.
com.tw/program/products/mainboard/mbd/pro_mbd_trp_list.php.

Introduction to DDR SDRAM

DDR (Double Data Rate) SDRAM is similar to conventional SDRAM, but dou-
bles 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.

Memory

DDR DIMM Slots
(DDR 1~2)
Hardware Setup
2-7