Disabling the sound Card on CentOS 4.5

Recently I had to disable the sound card for my trixbox because of a conflict with the phone card that we have in.  It was really hard to find, but I was finally able to.  

Do the following:

Enter into BIOS by rebooting the CentOS machine and then hitting Del at the boot screen.  Once in BIOS scroll over to Advanced which is at the top of the screen and then scroll down to Chipset.  Then click SouthBrdige SiS964 Configuration, or the appropriate chipset, and this will present you with the option to disable the onboard AC97 Audio Device.  

Granted this configuration will probably vary depending on the hardware you are using, but I couldn't find this anywhere so I wanted to add it to my wiki.