R9 380 Sierra

Hello guys I have Success fully installed Sierra by using clover.My system is the following:i5 6500,r9 380 4gb,8 gb ddr4,120gb ssd,1tb hdd and b150 asrock mobo.The problem is that I can't boot Mac OS X with graphics adapter set to R9 380.How can I do it?

Author: @alex1x