Gigabyte GA 970 Gaming r.v.1.1

[AXUS]

Hello I have a problem, according to the specifications of this motherboard, I can put 32gb at 1866 without O.C.
Like the ones I had, I broke the old motherboard, I got some Patriot Viper at 1600 8x2gb and although they were not the ones I was looking for I got them, to try the PC.

Not long ago I saw what I was looking for two ram modules: Some Fury at 1866 8X2gb, and although I already knew that by mixing them I would put the speed to the slowest, I put them. and the PC did not start.

I remove the Viper and put the Fury and the PC goes, okay so I put the other two Viper and it does not go again.
Already annoyed I try, from module to module and in the 4 slots, all go individually.
Okay so I go back to putting the 4 modules, respecting not to mix speeds in the same channel and again it does not start.

I remove one of the modules and it goes, I put it back now I remove one of different speed and it goes.

Conclusion the motherboard does not want more than 3 modules of the ones I want to put.
I have at home two more modules 1 of 2gb at 1333 and another of 4gb at 1600.
First I put the 1333 with the other three and the motherboard goes, okay so I put the 4gb at 1600 and the motherboard goes..

What is the motherboard's problem, what kind of limitation can it have of gb installed or of speed?

Anyway I keep looking to put them all, at the same speed, but I do not trust spending and then the motherboard spits them out.

Greetings