Macbook Air 2011 sounds like it's dying! Fan sounds like an electric Toothbrush. Video attached

[Famous4it]

Hi!

My macbook 2011 air started making this noise over the last week. Fans aren't running fast, 1729 rpm according to istat. It's not even hot. Just super loud! Can't use it in class, it disturbs everyone.

There's no genius bar where I live. Anyone have an idea of what's up?

 

[2984839]

That's the classic death song of the laptop fan.

Replacing it is not too bad if you're handy and patient: https://www.ifixit.com/Guide/MacBook+Air+13-Inch+Mid+2011+Fan+Replacement/6362