DFI DL631-C226 - Manual (Page 10)

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10
Chapter 2 Hardware Installation
Chapter 2
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 channels. Dual channel provides
better system performance because it doubles the data transfer rate.
Installing the DIMM Module
Single Channel
DIMMs are on the same channel.
DIMMs in a channel can be identical or
completely different. However, we highly
recommend using identical DIMMs.
Not all slots need to be populated.
Dual Channel DIMMs of the same memory configuration
are on different channels.
Important:
You can populate either Channel A or Channel B first.
Note:
The system board used in the following illustrations may not resemble the actual
board. These illustrations are for reference only.
1. Make sure the PC and all other peripheral devices connected to it has been powered down.
2. Disconnect all power cords and cables.
3. Locate the DIMM socket on the system board.
4. Push the “ejector tabs” which are at the ends of the socket to the side.
Ejector tab Ejector tab
5. Note how the module is keyed to the socket.
Key
Notch