Intel GA-945PL-DS3P, GA-945PL-S3P user manual Dual Channel Memory Configuration

Dual Channel Memory Configuration

GA-945PL-DS3P/GA-945PL-S3P supports the Dual Channel Technology.

After operating the Dual Channel Technology, the bandwidth of Memory Bus

will add double.

GA-945PL-DS3P/GA-945PL-S3P includes 4 DIMM sockets, and each Channel has two DIMM sockets as following:

Channel 0 : DDRII1, DDRII2

Channel 1 : DDRII3, DDRII4

If you want to operate the Dual Channel Technology, please note the following explanations due to the limitation of Intel chipset specifications.

1.Dual Channel mode will not be enabled if only one/three DDRII memory module is installed.

2.To enable Dual Channel mode with two or four memory modules (it is recommended to use memory modules of identical brand, size, chips, and speed), install the memory according to the dual channel memory configuration table below (Figure 1).

Dual Channel Memory Configuration Table (DS: Double Side, SS: Single Side, X: Empty)

	DDRII1	DDRII2	DDRII3	DDRII4
2 memory modules	DS/SS	X	DS/SS	X
	DS/SS	X	X	DS/SS
	X	DS/SS	DS/SS	X
	X	DS/SS	X	DS/SS
4 memory modules	SS	SS	SS	SS

Figure 1

Memory configurations in Figure 2 will result in memory frequency being reduced from the original frequency. (DS: Double Side, SS: Single Side, X: Empty)

	DDRII1	DDRII2	DDRII3	DDRII4
2 memory modules	SS	SS	X	X
	X	X	SS	SS
3 memory modules	SS	SS	DS/SS	X
	SS	SS	X	DS/SS
	DS/SS	X	SS	SS
	X	DS/SS	SS	SS
4 memory modules	SS	SS	SS	SS

Figure 2

Because of chipset limitations, do not populate both DIMM sockets of the same channel with double-sided memory modules to prevent system's failure to start or incorrect detection of memory modules,

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