Memory; Memory Speed/Cpu Fsb Support Matrix; Ddr Population Rules - MSI 865GM3 Series User Manual

The mainboard provides four 184-pin unbuffered PC3200/PC2700/
PC2100 DDR DIMMs and supports the memory size up to 4GB. To operate
properly, at least two DIMM modules must be installed onboard.

Memory Speed/CPU FSB Support Matrix

FSB400
FSB533
FSB800

DDR Population Rules

Install at least one DIMM module on the slots. Each DIMM slot supports
up to a maximum size of 1GB. Users can install either single- or double-sided
modules to meet their own needs. Please note that each DIMM can work
respectively for single-channel DDR, but there are some rules while using
dual-channel DDR (Please refer to the suggested DDR population table on p.
2-8). Users may install memory modules of different type and density on
different-channel DDR DIMMs. However, the same type and density memory
modules are necessary while using dual-channel DDR, or instability may occur.

Memory

DDR200 DDR266
V V
V V
V V
Hardware Setup
DDR DIMM Slots
(DIMM 1~4)
DDR333 DDR400
X X
V X
V V
2-7