Gigabyte MA-790GP-DS4H + 2x2GB OCZ 1066 MHz, single channel?

[Simpson]

Since today I have a new system with the following components:

AMD phenom II 940 3.0 GHz
Gigabyte MA-790GP-DS4H with latest bios
OCZ Platinum 2x2 GB 1066 MHz 2.2V DC KIT CL5

Now the problem with no possibility to get dual channel.
What I have done:

- Manual check on how the motherboard had to be placed
- All possible options are as regards places tried
- 800 MHz / 1066 MHz
- Voltage is

[Kylebrn]

PC must be in dual-channel may have nothing to do with unchanged or ganged to create it?.

[Una]

Read the manual of your motherboard. However, in what slots you have two slices. Stop them and you have 100% sure dual-channel. What is uncertain is whether it is ganged or unganged, but dual-channel you sure.

PS. How do you now that they do not run in dual-channel? Software tool? And how can you be sure that this tool works well. Try your memory bandwidth benchmark again and that around 15GB / s that is just fine. Is around 8GB / s it is just not good.

[Simpson]

What I do, with CPU-Z I remain single channel gain.

Thank you!
RESOLVED