RAM issue Help pls

[Wololo]

Hey guys I recently upgraded the motherboard gigabyte z77 d3h to intel DZ77RE-75K and just cant set up the ram right.

This issues with this mobo is driving me nuts.

I am using corsair 2x8gb DIMM 1600MHZ 240 pin ram. The ram work perfect on the other mobo.

the full stats can be found here, http://www.corsair.com/en-us/vengeance-16gb-dual-channel-ddr3-memory-kit-cmz16gx3m2a1600c10r

CPU-Z is displaying 806MHZ for the memory...

The system only boot when I put ram A in slot 1, and ram B in slot 3, the single channel setup, **if I put A in 3 and B in 1, the system wont boot**

Both the dual channel configuration 1-2 and 3-4 are wont boot, 2-4 wont boot.

If I could only go into the bio to see what the what the setting are on when I try dual channel that would be great, but I get 3 beep sound due to memory error then reboot cycles.

I run passmark and see a signifcant decrease in cpu performance just because of the 75k single channel setup vs the d3h dual channel setup.

Anyone experience with this intel mobo or know how to fix? I don't know if I should get 2 more stick of ram and maybe it will magically work or return product if DIMM 2 slot is defective.

I followed the ram installation guide from intel.