I currently have a Skylake system with a Nvidia GTX 970 and have just purchased an AMD Sapphire Radeon Pulse 8GB and I want to switch them out. I'm using the 17,1 SMBIOS, so have had to use the AGDPFix script every time after updating the OS. Recently I also had to change something regarding NVRAM but have forgotten exactly what that entailed. What will I need to do regarding kexts, config.plist, and other changes in order to switch from my Nvidia card to this new AMD card? All help appreciated.