User`s manual

Motherboard Manual
10
B. Memory Capacity
DIMM Socket
Location
DDR2 Module
Total Memory
Size
DDR2_A1 256MB/512MB/1GB/2GB/4GB
DDR2_B1 256MB/512MB/1GB/2GB/4GB
Max is 8GB.
C. Dual Channel Memory Installation
Please refer to the following requirements to activate Dual Channel function:
Install memory module of the same density in pairs, shown in the table.
Dual Channel Status
DDR2_A1
DDR2_B1
Disabled O X
Disabled X O
Enabled O O
(O means memory installed; X, not installed.)
Note1: The DRAM bus width of the memory module must be the same(x8 or x16)
Note2: DDR2-533 only for FSB 1066 / 533