NVIDIA web driver for GTX 970 don't work

Hi,

I've installed El Capitain 10.11.3 and updated to 10.11.5 with Unibeast and Clover.
My boots args are : dart=0
If i put : nvda_drv=1, the system don't want to boot and show me a croix.
I've installed the latest NVIDIA Web drivers from the Tonymacx86 forums, wich are the sames than the insanley mac forum and i have tryed too.