First, enable elrepo:
rpm –import http://elrepo.org/RPM-GPG-KEY-elrepo.org
Next, install kmod-nvidia:
yum –enablerepo=elrepo install kmod-nvidia nvidia-x11-drv-32bit
According to what I read, that should be enough. However, I also had to disable the nouveau driver by editing /boot/grub/menu.lst and adding the following to the end of the kernel line:
That’s it. Just reboot and enjoy.
If you’re not familiar with elRepo, it’s pretty cool. You can read all about it here. The short version is that it is a helpfui set of repositories that work for CentOS/Scientific Linux/RHEL 5.x and 6. The repos exist only to enhance the stock EL kernels with new hardware drivers.