Gigabyte GA-8I945PMF User Manual page 15

GA-8I945PMF includes 4 DIMM sockets, and each Channel has two DIMM sockets as following:
Channel A : DDR II 1, DDR II 2
Channel B : DDR II 3, DDR II 4
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 memory cannot be used if one or three DDR II memory modules are installed.
2. If two DDR II memory modules are installed (same storage capacity), one must be added to
the Channel A slot and the other in the Channel B slot in order to use dual channel memory.
Dual channel memory cannot function if both DDR II memory modules are installed on the
same channel.
3. If four DDR II memory modules are installed, please use memory of the same storage capacity
in order to use dual channel memory and for BIOS to detect all the DDR II memory modules.
We'll strongly recommend our user to slot two DDR II memory modules into the DIMMs with the same
color in order for Dual Channel Technology to work.
The following table is for Dual Channel Technology combination: (DS: Double Side, SS: Single Side)
2 memory modules
4 memory modules
Dual Channel DDR II
GA-8I945PMF supports the Dual Channel Technology. After operating the
Dual Channel Technology, the bandwidth of Memory Bus will double.
DDR II 1 DDR II 2
DS/SS X
X DS/SS
DS/SS DS/SS
- 15 -
DDR II 3 DDR II 4
DS/SS X
X DS/SS
DS/SS DS/SS
Hardware Installation