Gigabyte GA-M55S-S3 user manual Dual Channel Memory Configuration, English

Dual Channel Memory Configuration

The GA-M55S-S3 supports the Dual Channel Technology. After operating the Dual Channel Technology, the bandwidth of Memory Bus will double.

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.

3.To enable Dual Channel mode with four memory modules, it is recommended to use memory modules of identical brand, size, chips, and speed.

The following is a Dual Channel Memory configuration table: (DS: Double Side, SS: Single Side, "--": Empty)

DIMM Socket	DDRII_1	DDRII_2	DDRII_ 3	DDRII_4
2 memory modules	DS/SS	DS/SS	- -	- -
	- -	- -	DS/SS	DS/SS
4 memory modules	DS/SS	DS/SS	DS/SS	DS/SS

If two memory modules are to be used to achieve Dual Channel mode, we recommend installing them in DDRII_1 and DDRII_2 DIMM sockets.

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- 15 - Hardware Installation