Top secret settings...MOBO GA-Z87 HD3 + GForce GTX950

Hi to all,
finally I have "finished" my High Sierra Hackintosh... I have only 1 problem... HDMI Audio from GTX 950...
after try a lot and a lot of mod won't works!...
at the moment I have no output device installed....
My mobo is compatible because two month ago YOSEMITE was run with audio...
now, multibeast can't install can't install 892 kext for an error....
Toledo? and all the GURU of this site ... where are you?
how can I fix? patch? mod? install?
please help me.....
tnx in advance