MUff1N said:
Thanks a bunch scaramonga for posting this as it worked perfectly!
I forgot about setting it up in the bios before I installed the RC 7100
& I wasn't going to do it all over again with all the programs I have installed & customizations I've done to the system to enable AHCI.

But after the registry modification I was able to install the latest Intel Matrix Storage drivers v8.8.0.1009 & I now have AHCI set in the bios with NCQ enabled!
Glad to help my friend, and great you got it working OK.