One of my case cooler is doing weird sounds and slows down

[Cosmin]

Hi! Today I decided to fix one of my case cooler but I don’t know how to do it. Can you, please, help me? By the way, when I start the pc, the cooler is very loud, it gets quieter in time until its almost silent, but I do not want to break this thing.

[Cosmin]

This is how it sounds

[phillpower2]

If a cooling fan starts making noises there are normally two possible causes, the fan bearings have or are failing or something is catching the fan blades.

If the fan blades are free of obstruction, replace the fan, we cannot help you decide on which one as we know absolutely zero about your computer.

[Cosmin]

Ok, thank you for the fast response!

[phillpower2]

You are welcome