After reading this thread I was hesitant to buy a kit of
Corsair Vengeance LPX Red DDR4 PC25600/3200MHz CL16 2x8GB
(CMK16GX4M2B3200C16R)
As I also have the Asus X170 pro gaming board.
But i decided to give them a try anyway, and found out I have absolutely no problem with them at all.
I have the latest bios and running them in XMP works flawlessly.:sunglasse