Hello guys, I am following all your advices on installing RX480 on my ASRock Fatality Z170 i7 system with Saphire RX480 Nitro+ OC and Intel 530 onboard graphics. I have successfuly installed Sierra and connected 2 monitors, one to onboard 530 graphics port and one to double DP ports on RX480.
My setup and install was easy thanks to great tools provided - I created USB stick with unibeast, installed Sierra and both monitors are runing OOTB right after Sierra first boot. During Sierra boot only monitor connected to Intel 530 onboard graphics is running. After boot both monitors are nice and shine.
Problem is acceleration of course. As soon as I edit 4100 kext file, change value to 0x67DF as required, and reboot, apple logo appears and boot process stops at around 60%. I have reinstalled Sierra several times already just to be able to get back into the OS, trying something else, but as soon as kext is edited, system hangs at boot.
I believe I have edited .plist file the right way – copied it to desktop, edited and then copied back in kext overwriting old one. I have used both Kext Utility and Kext Wizard after edit. See attached file for CLOVER GPU info at boot time if it gives you any idea.
So far i avoided using Multibeast because after using it, Intel 530 glitch appears. With OOTB install, no problem with Intel 530 on Sierra 10.12.2, network and displays running without a glitch.
Any ideas why system freezes at 60% during boot after kext is edited? Am I doing something wrong?
Thanks in advance.