Can't boot with Nvidia drivers enabled or disabled.

I try to boot with the arg to enable Nvidia drivers. Boot fail. I try to disable them. Boot fail. I try to run in safe mode. Initial boot success, then black screen and monitor sleeps. Someone please help. I have my SMBIOS set to iMac17,1 is that the right preset for my setup?

My setup is Core-i7-6700k LGA1151 Gigabyte GTX 1070 Extreme 1 ASRockz170 extreme 4