Biostar A75MH Setup Manual - Page 11

B. Memory Capacity, C. Dual Channel Memory installation, D. DDR Speed Support

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A75MH / A55MH 2. Insert the DIMM vertically and firmly into the slot until the retaining chip snap back in place and the DIMM is properly seated. Note: If the DIMM does not go in smoothly, do not force it. Pull it all the way out and try again. B. Memory Capacity DIMM Socket Location DDR3 Module Total Memory Size DDR3_A1 DDR3_B1 512MB/1GB/2GB/4GB/8GB Max is 16GB. 512MB/1GB/2GB/4GB/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 DDR3_A1 DDR3_B1 Disabled X O Disabled O X Enabled 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) D. DDR Speed Support Please refer to the following table for DDR speed reference: # of DIMM per Channel # of Ranks per DIMM Max DDR Speed Grade for 1.50V DIMM 1 of 1 UDIMM xR DDR3-1866 1 of 2 UDIMMs xR DDR3-1600 / DDR3-1333 Note: xR: Single or double side memory moudule 9

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A75MH / A55MH
9
2.
Insert the DIMM vertically and firmly into the slot until the retaining
chip snap back in place and the DIMM is properly seated.
Note:
If the DIMM does not go in smoothly, do not force it. Pull it all the way out
and try again.
B. Memory Capacity
DIMM Socket
Location
DDR3 Module
Total Memory
Size
DDR3_A1
512MB/1GB/2GB/4GB/8GB
DDR3_B1
512MB/1GB/2GB/4GB/8GB
Max is 16GB.
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 DDR3_A1 DDR3_B1
Disabled
X
O
Disabled
O
X
Enabled
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)
D. DDR Speed Support
Please refer to the following table for DDR speed reference:
# of DIMM per Channel
# of Ranks per DIMM
Max DDR Speed Grade
for 1.50V DIMM
1 of 1 UDIMM
xR
DDR3-1866
1 of 2 UDIMMs
xR
DDR3-1600 / DDR3-1333
Note:
xR: Single or double side memory moudule