Hi everyone. I've had my lastest build completed for about a week now, and everything has been going quite well. See my sig for components. But I have been hearing a single beep from the pc every now and then while playing games. For example when playing DoD:Source last night, I think I heard it beep twice in about a 90min stretch. Nothing happens at all to gameplay when it beeps, it doesn't stutter or anything. No indication of anything at all, just a single beep. I checked the cpu temp with PC Probe II a couple times right after exiting the game and it's been in the upper 50's, so it doesn't appear to be heat. I haven't noticed the beep in anything but games. Any ideas what it might be? I've never had a computer do this before.
Thanks for your help.