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IhazHedont

New fans are "buzzing"

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Posted · Original PosterOP

Hey,

 

Just bought a couple of the new EK Vardar F4 @2200 RPM, PWM version.

My fan controller only has 3 pins connectors (whereas the fan has 4), and when I connect them to it, the fans are buzzing, no matter the speed is.

 

Should I replace my fan controller ?


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Hey,

Just bought a couple of the new EK Vardar F4 @2200 RPM, PWM version.

My fan controller only has 3 pins connectors (whereas the fan has 4), and when I connect them to it, the fans are buzzing, no matter the speed is.

Should I replace my fan controller ?

 

Just do a test and run it off of the CPU's true PWM header and see if it's a fan issue some 4 pin PWM fans don't like it when they run on 3 pin.

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do they still buzz if you plug them directly to motherboard?

 

is it a vibration from hiting your case or does it seem to be comming directly form fans motor?


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might as well just replace the fans

it would cost the same as replacing the controller

they have a horrble noise to performance ratio


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Posted · Original PosterOP

Try plugging them into your mobo.

 

 

Just do a test and run it off of the CPU's true PWM header and see if it's a fan issue some 4 pin PWM fans don't like it when they run on 3 pin.

 

 

do they still buzz if you plug them directly to motherboard?

 

is it a vibration from hiting your case or does it seem to be comming directly form fans motor?

So I tried, one of them is silencer, but still buzzing, they're not as quiet as my Noctua were...

 

might as well just replace the fans

it would cost the same as replacing the controller

they have a horrble noise to performance ratio

By "they", you mean the Vardar ?


CPU: i7 4790K | MB: Asus Z97-A | RAM: 32Go Hyper X Fury 1866MHz | GPU's: GTX 1080Ti | PSU: Corsair AX 850 | Storage: Vertex 3, 2x Sandisk Ultra II,Velociraptor | Case : Corsair Air 540

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Posted · Original PosterOP

do they still buzz if you plug them directly to motherboard?

 

is it a vibration from hiting your case or does it seem to be comming directly form fans motor?

It seems to be coming from the motor :/ I might ask EK a refound I guess.


CPU: i7 4790K | MB: Asus Z97-A | RAM: 32Go Hyper X Fury 1866MHz | GPU's: GTX 1080Ti | PSU: Corsair AX 850 | Storage: Vertex 3, 2x Sandisk Ultra II,Velociraptor | Case : Corsair Air 540

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By "they", you mean the Vardar ?

yes

a while ago I did all the calculations comparing them to severañl noctua fans and they perform worse than a quiet airflow fan in both static pressure, airflow, and noise


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Posted · Original PosterOP

yes

a while ago I did all the calculations comparing them to severañl noctua fans and they perform worse than a quiet airflow fan in both static pressure, airflow, and noise

 

I found that the airflow was really nice.

The thing I don't explain is that if I turn the blades manually, I don't have that buzz, this means that it doesn't come from the ball bearings.

I work as an electrical expert so I discussed with my colleagues about that, and the only thing we conclude is that the harmonics can be the cause.

 

Because if I connect them to my fan controller (3 pins), I have the noise, which could come from the fact that the fans are under volted.

But, If i connect them to my 4 pins MB, they are loudy as well, whereas I use the PWM function with Asus Fan Xpert.

 

I opened a ticket and asked for refunding, maybe EK will tell me why they are loudy, because I watched Jay2cents video again, and his fan was quiet as hell, and he connected it to his MB, and used Speed fan ...

 

EDIT: Or maybe the 4 pins MB port is also using a voltage control ? I just read that Intel mobos do that, and only CPU fan header actually uses PWM.

 

EDIT2: I checked my MB user manual, and I might have a little anser. All 4 pins are PWM compatible, and I think that I set all my ports on DC mode because of my Noctuas. This means that my fans haven't been tested on PWM at all. I'll try this evening when I come back from work, I'm pretty sure that the 4 pins header is set on DC mode ...


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Posted · Original PosterOP

After several tests, the buzz comes from the vibration of the fan on the radiator. The itself doesn't buzz, but when you put it on any surface, you get the noise.

 

Do you guys know any kind of anti vibration kit that can fit between a fan and a radiator ?

 

Do you think this would work ?

 

http://www.docmicro.com/watercooling_radiateurs-fixsupport_DocMicro-com-Kit-de-Fixation-pour-Radiateur-avec-Caoutchouc-120mm-Noir_10154.html


CPU: i7 4790K | MB: Asus Z97-A | RAM: 32Go Hyper X Fury 1866MHz | GPU's: GTX 1080Ti | PSU: Corsair AX 850 | Storage: Vertex 3, 2x Sandisk Ultra II,Velociraptor | Case : Corsair Air 540

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After several tests, the buzz comes from the vibration of the fan on the radiator. The itself doesn't buzz, but when you put it on any surface, you get the noise.

Do you guys know any kind of anti vibration kit that can fit between a fan and a radiator ?

Do you think this would work ?

http://www.docmicro.com/watercooling_radiateurs-fixsupport_DocMicro-com-Kit-de-Fixation-pour-Radiateur-avec-Caoutchouc-120mm-Noir_10154.html

 

I think I might know what that problem is then if it's buzzing only in front of a grill or radiator, the only way to really fix it is giving it more spacing using a thicker gasket like the ones you have there.

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Posted · Original PosterOP

Theoretically that should do the trick.  I'd try with some rubber or cardboard washers first and see if that helps.

 

 

I think I might know what that problem is then if it's buzzing only in front of a grill or radiator, the only way to really fix it is giving it more spacing using a thicker gasket like the ones you have there.

Very interesting video.

I think the little caoutchouc bracket + anti vibration ring should do the trick without sacrificing that much of performance.

That being said, I think the noise comes from vibration because it appears when I put the fan on my desk :/


CPU: i7 4790K | MB: Asus Z97-A | RAM: 32Go Hyper X Fury 1866MHz | GPU's: GTX 1080Ti | PSU: Corsair AX 850 | Storage: Vertex 3, 2x Sandisk Ultra II,Velociraptor | Case : Corsair Air 540

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Very interesting video.

I think the little caoutchouc bracket + anti vibration ring should do the trick without sacrificing that much of performance.

That being said, I think the noise comes from vibration because it appears when I put the fan on my desk :/

 

You could look for something like this https://www.dazmode.com/store/product/120mm-dual-radiator-gasket-1mm-thickness/


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Posted · Original PosterOP

 

That's nice, I'll try to find out if I can purchase it in EU. Thanks.


CPU: i7 4790K | MB: Asus Z97-A | RAM: 32Go Hyper X Fury 1866MHz | GPU's: GTX 1080Ti | PSU: Corsair AX 850 | Storage: Vertex 3, 2x Sandisk Ultra II,Velociraptor | Case : Corsair Air 540

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