I am not sure if this will be a double post? Sorry if it is I am preparing to build a new system with a Skylake 6700K and a Samsung 950 PRO ssd m.2 V nand. I currently have an AsRock Z170 Extreme 7+ mobo, but am concerned about using that chipset due to issues I read before about the 170 having issues with the PCIex4. Would I be better served by getting a say AsRock Z270 Killer mobo and selling other one? Thank you fro the privilege of your time to read this, and please advise if you are aware of this issue Larry T.