Alienware Aurora Buzzing Noise

​Recently I purchased an Alienware Aurora and it has been making this annoying buzzing noise. It just buzzes when I'm doing anything from light surfing to gaming and I can't seem to pinpoint where it is coming from. Sometimes when I start up my PC I won't hear any buzzing, but other times it will buzz a lot with short intervals where it stops. It took a very long time for this PC to get shipped to me so I would really like to avoid having to send it back, but this buzzing noise is unacceptable considering how much I paid for this PC. Any help or suggestions would be greatly appreciated. ​