Quote Originally Posted by Shiranui Gen-An View Post
Looks like that board doesn't have latency boundary settings, which makes it easier to set all of the tertiary timings to loose values. I would suggest setting DRAM CLK Period to 14.
Made no difference either.

It is some sort of a compability issue.
After some tinkering I was able to run a CFR kit at DDR-2800 so the hardware itself is good.

Decided to try something different and plugged in one Samsung Q module and one CFR module.
The system posted right away at 2666MHz. However after making some changes to the settings and saving them I could not get it running again.

With a CFR module plugged in the board does not shut down as fast as it does with the single Samsung module.
Go and figure.