[SOLVED] One Noctua fan making ''huuuu'' noise on low rpm. Any solutions?

[vladakv]

really irritating... i mount it preperly, but on low rpm making that noise...

EDIT: Noctua NH-D15

 

[Deleted member 362816]

It happens with some fans. Just adjust the fan speed of that issue fan in bios to a speed that doesn't humm and call it a day.

 

[Kona45primo]

Get Noctua to send you a new one.

 

[vladakv]

It happens with some fans. Just adjust the fan speed of that issue fan in bios to a speed that doesn't humm and call it a day.

Everything is normal mechanicly. But idk how is possible to make that noise. I hear it when is totally silent in room.
Maybe it is normal?
I set up rpm - different then other fan and for now it's good.
Maybe sound come because of same rmp's on both fans?