Have a 2700x arriving Monday and am a bit lost/worried over all the RAM chat in this thread!
AMD call it DOCP. However Gigabyte have stayed with XMP naming. Try profile 1 or 2 (if supported by the memory) and see what timings that gives you. If it gives stock DDR4 3000MHz cl16 (as it should) that should be fine. If you want to overclock, you can start from there with tighter timings or higher clock.