Hi ImKevin,
First of all, I'm sorry that you're having trouble with your laptop!
It would be really hard for me to pinpoint the exact cause of the buzzing sound so therefore, I suggest that you take
your laptop and visit a HP Service Center close to you. The engineers will be able to help you find the cause and provide
different solutions. You can contact HP using the link below and get the support that you need.
I'm sorry I wasn't able to provide you with a straight solution.
http://www8.hp.com/us/en/contact-hp/phone-assist.html#section1
Hope this helps! :)