Above I note that the 1006 BIOS is supposed to launch in Mid June.

I downloaded the Beta (not guaranteed to work) for my Gigabyte 370 K7 motherboard and installed it.

My memory is 32GB of 3200MHz DDR4. Users have found 16GB is relatively easy to set to 3200MHz and 32GB usually will not go over 2666 with older BIOS.

My memory now runs stable at 3000MHz. It boots and runs for a while at 3200MHz -- but eventually locks up. I have not tried any "tricks" -- just simple stuff. So, I suppose with some hand set voltages it would work at 3200MHz. Also works at 1T timing.

This is the Beta. So, the Mid June version may work easier -- they say OC to 4000MHz will be possible with some memory types -- if one is expert at OC memory.