DFI G7B630-B - Manual (Page 19)

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Hardware Installation
The system board supports the following memory interface.
Single Channel (SC)
Data will be accessed in chunks of 64 bits (8B) from the memory
channels.
Dual Channel (DC)
Data will be accessed in chunks of 128 bits from the memory chan-
nels. Dual channel provides better system performance because it
doubles the data transfer rate.
• DIMMs are on the same channel.
• DIMMs in a channel can be identical or
completely different. However, we highly rec-
ommend using identical DIMMs.
• Not all slots need to be populated.
• DIMMs of the same memory configura-
tion are on different channels.
Single Channel
Dual Channel