Memory; Introduction To Ddr Sdram - MSI G52-M6570XA-G22 Hardware User Manual

The mainboard provides 3 slots for 184-pin DDR SDRAM DIMM
(Double In-Line Memory Module) modules and supports the memory size up
to 3GB. You can install DDR200/266/333/400 modules on the DDR DIMM
slots (DIMM 1~3).
Please note that the system supports 128-bit dual channel DDR when
you install DDR modules on DIMM1 (purple slot) and DIMM3 (green slot),
or DIMM2 (purple slot) and DIMM3 (green slot).

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.

Memory

Hardware Setup
DDR DIMM Slots
(DDR 1~3)
2-7