GA z77x-UD5H. i7 GTX 650

[flight4]

I have now tried a clean Yosemite install as well as an update.
10.10.5 with Multibeast 7.4.1

Got stuck at this point when not using safe mode boot...

Any guidance, much appreciated!

 

[linuxrox]

did you try to boot with nv_disable=1 and then installing the latest Nvidia Web Drivers ?

 

[flight4]

Tried.... Got stuck with unknown cpu model.
I then tried to install latest nVidia driver in safe mode... Wouldn't install!

So I am in the same place as before!

Thanks for the suggestion though... Anything else come to mind?