Memory; Introduction To Ddr Sdram - MSI 648 Max User Manual

Memory

The mainboard provides 3 slots for 184-pin DDR DIMM (Double In-Line
Memory Module) modules and supports the memory size up to 3 GB without
ECC. You can install DDR 200, DDR 266, DDR 333 MHz and up PC 133 modules
on the DDR DIMM slots (DDR 1~3). To operate properly, at least one DIMM
module must be installed.

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 mod-
ules rather than 168-pin DIMM modules used by SDR SDRAM. High memory
bandwidth makes DDR an ideal solution for high performance PC, worksta-
tions and servers.
DDR DIMM Slots3
(DDR 1~3, from left to right)
2-5
Hardware Setup