Make sure all your drivers are up to date. If they are, possibly consider installing an older version and see if that helps.
My computer was beeping at me yesterday, it turned out my keyboard came partially unplugged. XD
The keyboard worked fine, it would just beep sometimes when I was typing, and even when I did nothing. That could be worth looking into I suppose. Though, I'm probably the only one who plays with his keyboard cord with his feet.