SILENTIUMPC Fortis 3 HE1425 - weird noises.

[sew333]

Hello. My cpu cooler is SilentiumPc Fortis 3. But i have randomly weird noises coming from fan, when cpu is on high load. Its very randomly. Sometimes i can hear it, sometimes not.

Here is example with the same noise:

I dont know what to do. Live with this or not?

 

[Nebulous]

Hm..dunno maybe a drop of sewing machine oil in the hub?