I would try enabling your soundcard again in the bios, there's no need for that unless your back in the xp days.
open sonar and go to drivers, select MME instead of asio, this will eliminate the Roland as your issue.
watch a few you tube vids or even try media player to listen to some tunes, still there???
disable wireless card I think cactus said that, its a good idea.
does sound like a demo software giving you the beeps.
how often are the interval's of the beeping ?