Question How to solve the problem of loud fan?

[unitedOrange]

Hello!

One of my exhaust fan is really making lots of noises, It's like an airplane taking off...

I totally have three fans, expect the cooler's fans. But others are working great, doing their job without screaming. Somehow only this fan is making noises.

However, in mobo BIOS, I set all the fans to "smart fan mode," so they all kind of on the same page. I just don't understand why this particular fan is being so annoying...

By the way I'm using Arctic F12 PWM fans.

Thanks a lot!

 

[Remeca]

Bearings going probably, that's what fan noise usually is. Lubing it might work for awhile, but it will get worse. Just replace it.

 

[unitedOrange]

Well...that might be a faulty fan or something?

 

[TJ Hooker]

Is it connected to your motherboard or straight to the PSU?

 

[Joakim Agren]

First check that the "screaming" is not simply caused by bad harmonics between the fan and case mount. To do that just unscrew the fan from the case and see if it still makes those noise when you have it in the free air. If it does then well it is a bad bearing and you must then re place it with a new one.

 

[unitedOrange]

Is it connected to your motherboard or straight to the PSU?

Connected to motherboard and mounted to the top of the case for exhaust.

 

[unitedOrange]

First check that the "screaming" is not simply caused by bad harmonics between the fan and case mount. To do that just unscrew the fan from the case and see if it still makes those noise when you have it in the free air. If it does then well it is a bad bearing and you must then re place it with a new one.

Well you're right. It caused by the case. After I un-mount it the noise went away.

So how do I mount it back without causing noises?

 

[Joakim Agren]

Well you're right. It caused by the case. After I un-mount it the noise went away.

So how do I mount it back without causing noises?

You can replace the original fan screws with these rubber dampers from Noctua: https://www.amazon.com/Noctua-NA-SA...9Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU=

It i s a set of 20 so enough for 5 fans. Hopefully that can solve the problem for you at a low cost!

 

[unitedOrange]

I solved it by turn the fan upside down, make it intake fan lol. The noise went away. But now I got 2 intake fans and one exhaust fan, and two other exhaust fan from cooler.

 

[unitedOrange]

But here's the issue, why the fan will make noise when I mount it as exhaust fan? Because the fan's design or the case? Pc temperature is getting warm I might have to set that fan as exhaust.

 

[Blockpixelz]

But here's the issue, why the fan will make noise when I mount it as exhaust fan? Because the fan's design or the case? Pc temperature is getting warm I might have to set that fan as exhaust.

It might be the direction the air is flowing, try checking that. Also, might just be a defect fan, try getting it replaced and see how it works.

 

[unitedOrange]

Solved.