Happy Fall to everyone.
I would like to share a quick little fix that may help some of you. Currently, if you do a PRAM/NVRAM reset you will be booted from the OS X Default Driver, which will cause issues with Maxwell cards.
There is a way to keep the Web Drivers as the default driver, even after NVRAM resets.
1. Go to /Library/Preferences/SystemConfiguration/com.apple.Boot.plist (make a backup copy)
2. Open this file in X-Code or a plist or text editor. You will see a line that says "Kernel Flags", under this will be <string></string>
3. Insert "nvda_drv=1" between them, end result being <string>nvda_drv=1</string>
5. Repair Permissions
To test, turn off the Nvidia Web Driver via the Preference Pane and reboot. The preference pane and the Nvidia Icon will say that you are using OS X Default Driver, but if you look in the "extensions" section of System Profiler you will see that the Web Drivers are loaded.
Note: if you don't have X-Code and use a text editor you may have issues saving or replacing the file, I did it in X-Code and it was very easy.
Anyhow, with this little fix you don't have to worry about accidentally turning off the driver. This will also make it possible to create a disc image that contains a working web driver that therefore does NOT require an initial boot to set the NVRAM setting.
Do note that I doubt very much that this will "force" the web driver to load and let you use it in an "unauthorized" OS.
BTW, to disable SIP you need to use Recovery partition, open Terminal and type "csrutil disable"