Memory; Introduction To Ddr Sdram; Memory Speed/Cpu Fsb Support Matrix; Dimm Module Combination - MSI Mega 180 User Manual

2.3 Memory

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 into
the DDR DIMM slots (DIMM1&DIMM2).

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 modules rather than 168-pin
DIMM modules used by SDR SDRAM. High memory
bandwidth makes DDR an ideal solution for high
performance PC, workstations and servers.

Memory Speed/CPU FSB Support Matrix

DIMM Module Combination

Install at least one DIMM module on the slots. You can install either
single- or double-sided modules in any order to meet your own needs. Memory
modules can be installed in any combination as follows:
Slot
DIMM 1
(Bank 0 & 1)
DIMM 2
(Bank 2 & 3)
Maximum System Memory Suppported
DDR266
FSB266
FSB333
Memory Module
DDR S/D
DDR S/D
Introducing Mainboard
DDR333
V V
V V
Total Memory
64MB~1GB
64MB~1GB
64MB~2GB
S: Single Side
D: Double Side
2-5