Gigabyte GA-MF3 User Manual page 15

Due to CPU limitation, if you wish to operate the Dual Channel Technology, follow the guidelines below:
1. Dual Channel mode will not be enabled if only one memory module is installed.
2. To enable Dual Channel mode with two memory modules (it is recommended to use memory
modules of identical brand, size, chips, and speed), you must install them into DIMM sockets
of the same color.
Dual Channel Memory Configuration
The GA-MF3 supports the Dual Channel Technology. After operating the Dual
Channel Technology, the bandwidth of Memory Bus will double.
- 15 - Hardware Installation