This has happened twice now, both times after the game has been idle for at least an hour. Basically, game is sitting there chilling, minding it's own business when all of a sudden the speakers blare a buzz sound (kinda like AM radio when the station isn't coming in) at the loudest possible volume level. It stopped after 8 seconds the first time, and after 2 seconds the last time. Has not occurred while playing.
I don't even know where to start. I checked every connection, made sure every grounding screw was nice and tight. I don't even know what board I would have diag'd for this...CPU? Audio? Anyone ever experience anything like this and have a clue as to the cause?