Biostar P31-A7 Setup Manual page 11

B. Memory Capacity
DIMM Socket
Location
DDR2_A1
DDR2_B1
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 DDR2_A1 DDR2_B1
Disabled
Disabled
Enabled
(O means memory installed, X means memory not installed.)
The DRAM bus width of the memory module must be the same (x8 or
x16)
D. FSB Supporting Table
According to the FSB frequency of the installed CPU, the motherboard could
support DDR2 533/667/800 modules. Please refer to the table below to find
out the proper RAM module that fits the FSB of the installed CPU.
FSB of CPU
DDR2 Module
DDR2 533
DDR2 667
DDR2 800
(O means supported, X means not supported.)
DDR Module
256MB/512MB/1GB/2GB
256MB/512MB/1GB/2GB
O X
X O
O O
FSB 533 FSB 800
O X
O O
O O
P31-A7
Total Memory
Size
Max is 4B.
FSB 1066 FSB1333
O X
O O
O O
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