Nvidia GTX 690 does not work properly in 10.10 and 10.11

[oneme]

Hi there!
I'd like to update to "El Capitan" but when I try to install it, reaching the Apple install screen it goes to black. I'm following this web guide. I had "Yosemite" and had a lot of problems, after boot it froze and reboot, took a few times to get it work. Let's say from 10 times it boot properly 1. I have to say that in "Mavericks" works properly.
Any ideas?

My Rig:

Gigabyte Z77X-UP4-TH
Nvidia GTX 690

Thanks in advance!

 

[zoompastu]

for me... Gigabyte H77M-D3H Nvidia 640 GT it worked when I told unibeast I did NOT have Nvidia - I loaded everything fresh and all is well with 10.11.1. I downloaded the correct driver from nvidia after
install