Hallo,
I have i7 2600k installed on gigabyte z77p-d3(https://www.gigabyte.com/Motherboard/GA-Z77P-D3-rev-10#sp), which is 7th generation chipset. I use sapphire HD 7850 2GB OC for my graphics but can't boot with it because it reachs always to a black screen and nothing happens at all (even with safe mode and can't even install MacOS using it), I tried all possible flags and WEG with Lilu but no luck to fix the black screen. So I am using intel hd 3000 as a helping graphics to boot and at the very end the cursor appear but no interaction is possible (no kext is loaded), so I connect the di