http://www.amptron.com/html/bios.beepcodes.html
this is a link to general discription of why beeps can be heard as you can see most will give you a warning visually but there are plenty or reasons they can be heard with nothing visable on screen,yes the bios is running but it has not finished post and it is my belief you can not enter bios screen when this occurs.I dont pretend to know it all if im wrong i admit im wrong.At the end of the day i pointed out to ramrod he was missing the motherboard speaker and he is the rest has come from that