[Help] Fail to load the install [X99-A & i7 5960X]

Hello guys

I have a big issue. I tried to install MacOS Sierra, using the classic unibeast app. But I cannot reach the installer, even if I put a bunch of boot args. I tried like 20 times with different values and with google search (not blind boot args).

I know and i'm certain my motherboard is compatible, it's even the best one in the compatibility list. So here it comes, how do I install Sierra on my system? I need your help

Here is the full rig

MoBo: ASUS X99-A (with latest firmware)...

[Help] Fail to load the install [X99-A & i7 5960X]