Well this has now gone on for way to long. These boards are screwed with fast memory and after nearly 3 months i am not waiting any longer, so returning to Amazon as not fit for purpose.
I have ordered a recommended Asus board that will work with my 3200 speed RAM
I have always used gigabyte, but the denials and now slowness of fix has put me off for good. Disgraceful way to treat customers, we are nothing more than beta testers.
Good luck to the rest of you.
I will be reviewing the board on Amazon and describing the issues, and denials, and still no fix, to warn others about this on gigabyte z270x boards.