Warning sound while playing

[Xtr3m3]

Well every time I'm playing Call of Duty multi-player about 5 mins into the game an alarm comes on. The alarm is not coming from the game but from the case of the computer almost like a modem noise. Once i exit the game it goes away. I have Zone Alarm on my computer and i think thats whats making it go off. But i have no idea. If anyone has had problems like this please help......

Thanks,
Xtr3m3

 

[Condor]

what sort of sound?

ot: the sound of your PC praising you on how you own or booing you for keep losing? ;P jk

 

[Xtr3m3]

well i figured it out.... Some dust build up and cleaned it all out with duster.... Anyways thanks for reading