Black screen when booting Sierra (10.12.6) with Nvidia Web Drivers

Hey guys!

I get a black screen when booting Sierra (10.12.6) without nv_disable=1. In verbose mode I get a line of '+' characters.

I installed with the stock installer + Clover 2.4kr_4184 & iMac12,2 SMBIOS

Specs:

i5-2500k (Sandy Bridge) Gigabyte Z68AP-D3 Rev. 2 (UEFI) GTX 1070