Gigabyte GA-945GM-S2 User Manual page 15

The GA-945GM-S2 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 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), you must install them into DIMM
sockets of the same color.
The following is a Dual Channel Memory configuration table:
(DS: Double Side, SS: Single Side, "--": Empty)
DDR II 1
2 memory modules DS/SS
- -
4 memory modules DS/SS
(Note) When memory modules of different size and chips are installed, a message which indicates
that memory is configured to Flex memory mode operation will appear during POST.
Intel Flex Memory Technology offers easier upgrades by allowing different memory sizes to
®
be populated and remain in dual-channel mode.
Dual Channel Memory Configuration
The GA-945GM-S2 supports the Dual Channel Technology. After operating
the Dual Channel Technology, the bandwidth of memory bus will double.
DDR II 2
- -
DS/SS
DS/SS
- 15 -
DDR II 3 DDR II 4
DS/SS - -
- - DS/SS
DS/SS DS/SS
Hardware Installation