cossie
with the information you've given ... the straight answer is .... who knows ....?
what exactly is happening?
BIOS bleeps normally only happen on startup .... and to an extent are unique to your MOBO's bios
http://www.amptron.com/html/bios.beepcodes.htm l
if the beeping starts ..... and doesn't stop .... I'd be looking for a stuck keyboard key
or possibly a processor fan kicking in because the heatsink is blocked
a faulty hdd
a faulty cd/dvd drive
a faulty case fan .....
take your pick