[CentOS] beeps and a slow boot

On boot, my computer has been beeping at me and
showing the BIOS screen for almost two minutes.
During that time, it does not respond to tab or delete.

Where do I find the beep codes for a
MSI K9N SLI Platinum Series motherboard?
My google-fu has failed me.

-- 
Michael   hennebry at web.cs.ndsu.NoDak.edu
"SCSI is NOT magic. There are *fundamental technical
reasons* why it is necessary to sacrifice a young
goat to your SCSI chain now and then."   --   John Woods