[CentOS] Booting using another kernel

Hi Guys,

I am encountering this bug: https://bugs.centos.org/view.php?id=7656

I put in the CentOS 7 DVD and it starts to install and hangs with starting
x.

The suggestion was made in the bug report to boot using the 'kernel-ml' and
to be honest I don't know how to do that.

I build a machine that has 4 video cards in it. (2 x nVidia Geforce GT 970
and 2 x Sapphire Toxic R9 270x).

Can anyone give me a hand?

Jason