Centos 7

Installing NVIDIA drivers

First run this to get video card version:

[root@vov ~]# lspci | grep -i vga | grep -i nvidia
01:00.0 VGA compatible controller: NVIDIA Corporation GK107 [GeForce GT 640] (rev a1)

After you know what card you have go to this site and download the driver for your version of linux.

http://www.nvidia.com/Download/index.aspx?lang=en-us

Make sure you choose 64bit linux as os.

When the file is done downloading, move it to the /root folder and fix perms.

For me that command looked like:

mv /home/mike/Downloads/NVIDIA-Linux-x86_64-367.44.run /root
chown root.root /root/NVIDIA-Linux-x86_64-367.44.run
chmod +x /root/NVIDIA-Linux-x86_64-367.44.run

Now after this you gotta do some stuff in yum.

yum install epel-release -y
yum install dkms glibc-devel.i686 libstdc++-devel.i686
yum update