Any of you using an R9 290 in a 4,1 or 5,1? I saw the guide about adding the device ID to the kext in 10.10 but everything I found about 10.11 relates to hackintoshs and using Clover which I don't think I can use on a real Mac but in theory I could do the same modification in 10.11. Just figured I'd ask before I rip my AX750 out of my PC.