NVIDIA issue - Sierra keeps rebooting

[CutePlatypus]

Hello!

I just have finished my very first mackintosh, I'm a real beginner
I have followed this guide https://www.tonymacx86.com/threads/guide-sierra-on-the-ga-z170x-ud3.202296/

Mobo: GA-Z170X-UD3
CPU: i7-4700K
GPU: GeForce 980 Ti

The only issue is that after installing Nvidia drivers, Sierra keeps rebooting unless I use flag nv_disable=1

NVIDIA Driver Manager seems to be working properly (NVIDIA Web Driver is selected over OS X Default)

Do you have any idea of a solution?

If it helps:
- product name = MacPro6,1
- I have an old VGA screen (I will buy a nice HDMI one when everything will work) connected to DVI Analog via an adaptor.

Thank you in advance

 

[Fl0r!an]

Analoge display outputs are not supported, most likely that's your issue here.