Memory; Memory Speed/Cpu Fsb Support Matrix - MSI KM4M Series Manual

The mainboard provides 2 slots for 184-pin DDR SDRAM DIMM (Double
In-Line Memory Module) modules and supports the memory size up to 2GB.
You can install PC2700/DDR333, PC2100/DDR266 or PC1600/DDR200 modules
on the DDR DIMM slots.

Memory Speed/CPU FSB Support Matrix

For KM400
FSB266
FSB333
For KM400A
FSB266
FSB333
FSB400

Memory

DDR266 DDR333
V
V
DDR266 DDR333
V V
V V
V V
Hardware Setup
DDR DIMM Slots
(DIMM1 & 2)
V
V
DDR400
X
X
V
2-7