haven't the faintest idea of how YUM works, never used it. But normally with the nvidia driver, you'd download the driver and the readme (or I just print the relevant section(s) of the readme, and you'd then stop the X server, into an "init 3" login as root, cd to the directory that you downloaded it to and run the script as per the instructions.
Then with whatever editor you use, make the minor change to the Xorg.conf file, change back to an init 5 login (graphical), and restart. If you've got it right, you'll know as you see the nvidia splash screen.
If you haven't got something that's needed i.e. the kernel AND
the kernel sources, you'll get an error when you run the script.
Sorry, as I say, not only have I never used YUM, but also try to avoid the devils spawn that is Fedora/Redhat, like the plague
so thats about all I can offer in the way of assistance.