Changelog for nvidia-x11-drv-304xx-304.123-2.el7.elrepo.x86_64.rpm :

* Sat Oct 04 2014 Philip J Perry - 304.123-2- Disable nouveau in /etc/default/grub- Revert to /sbin/ldconfig
* Fri Jul 18 2014 Philip J Perry - 304.123-1- Port 304.xx legacy driver to RHEL7.- Updated to version 304.123- Adds support for Xorg 1.16