2-7
Hardware Setup
The mainboard provides 4 slots for 184-pin DDR SDRAM DIMM (Double In-
Line Memory Module) modules and supports the memory size up to 4GB. You can
install DDR400/DDR333 modules on the DDR DIMM slots (DIMM 1~4).
Memory
DDR DIMM Slots
(DIMM 1~4)
Introduction to DDR SDRAM
DDR (Double Data Rate) SDRAM is similar to conventional SDRAM, but dou-
bles 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. Please note that the DDR SDRAM does not
support ECC (error correcting code) and registered DIMM.
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 happen.
