I don't know what you did after downloading the driver from Nvidia site, but there are some steps required prior to running the installer, otherwise it will not work, as Nouveau will still sit there.
Even though I can confirm the driver from Nvidia site works just fine with 3.13.9 kernel, I would recommend you use the RPMfusion driver, as it takes care of those steps normally required with Nvidia installer.
You need to get to text mode directly after boot, as graphical mode is not working in your case, so in grub2 menu, press key e on the kernel, where you installed the driver (likely the latest kernel installed), go to the end of the kernel line and add this number: 3.
After that, don't press enter, just F10 to boot. This will get you to text mode, aka multi-user target.
You'd first have to uninstall the driver you used from Nvidia, so run the installer again.
Code:
# sh NVIDIA-Linux-installed-version --uninstall
After that, reboot.
Now again go to the text mode as before and install the RPMfusion driver:
Code:
# yum --enablerepo=rpmfusion-nonfree-updates-testing install akmod-nvidia xorg-x11-drv-nvidia-libs.i686
Mind you, kernel-devel is also needed to be installed for akmod version, so check if it is (rpm -q kernel-devel), install it if not present.
Reboot, should now work.
P.S. I'm typing this from work from top of my head, I may have forgotten something, hopefully not.
If I have, leigh will likely correct that.