Random beeps w NF7-s 2.0

I do not know if this is a mobo issue or what it is, but i'll give it a try in here.

My speakers/phones beeps randomly, i have never had this problem before i got the NF7-S 2.0.

It beeps when i watch movies or listen to music, it beeps when i don't.

I'm not sure, but it seems to beep when CPU load is high. Could the beeps come from motherboard monitor?

Any suggestions?

whats your specs, if you are overclocking, cracking and sound problems could be from Sbridge getting hot, might wanna cool it