Weird fan noises

[strubel.sheep]

My Acer Predator G3 makes weird noises comming from the area of the fan. The noise disappears or gets less loud when the fan has to turn faster. Should I solve this? if yes how?

https://youtu.be/JYBw-_HXzTQ

 

[RARRAF]

if you want too buy another cpu cooler