Ehh, the beep is correct, what kind of buzzing is it? Does it sound electrical or mechanical? Check your fans and make sure there is nothing that may start out as a potential obstruction to the fan, which could be causing the buzzing.
Electrical, it started a couple of days ago, I haven't done anything different either. Yes I know the Beep is correct, it means it is fine, but I am wondering if it is the motherboard doing the weird buzzing noise or speaker. If it is the speaker I will buy a new one.