User`s manual

Motherboard Manual
12
B. Memory Capacity
DIMM Socket
Location
DDR2 Module
Total Memory
Size
DIMMA1 256MB/512MB/1024MB
DIMMB1 256MB/512MB/1024MB
DIMMA2 256MB/512MB/1024MB
DIMMB2 256MB/512MB/1024MB
Max is 4GB.
C. Dual Channel Memory installation
To trigger the Dual Channel function of the motherboard, the memory module
must meet the following requirements:
Install memory module of the same density in pairs, shown in the following
table.
Dual Channel Status
DIMMA1
DIMMB1 DIMMA2 DIMMB2
Enabled O O X X
Enabled X X O O
Enabled O O O O
(O means memory installed, X means memory not installed.)
The DRAM bus width of the memory module must be the same (x8 or
x16)