papst fans clicking/mechanical/motor noise

jimveta · Post by **jimveta** » Fri Mar 05, 2004 3:20 am

hello, just wondering if this is inherent of all the papst fans--or at least their silent versions? i just bought a bunch of various sizes and all of them make a somewhat muted rapid clicking noise (well, kinda like a low revving engine sound). the only one that doesn't make this noise is a loud "non-silent" 120x30'ish papst that i have, which i've tried at lower rpms as well.

silvervarg · Post by **silvervarg** » Fri Mar 05, 2004 3:41 am

If you refere to undervolted Papst fans most of them click a little. It does depend on the samples you got. It seems to have become a problem since Papst moved manufacturing to Hungary.

Schroinx · Post by **Schroinx** » Fri Mar 05, 2004 11:58 am

Well, I have a 92, 80 and 40 and PWM driven or not they don't click. Just wonder what you folks do with 'em

And no it is not the Ultra low noise versions I have but the next best.

al bundy · Post by **al bundy** » Sat Mar 06, 2004 12:11 am

All sizes of Papst fans I've tried have clicked when undervolted, except for the Papst 120mm FGL fans.

patord · Post by **patord** » Sun Mar 07, 2004 5:27 pm

Just curious, when people post that their fans click or not for panaflow vs papst....

maybe give some manufacturing info? eg, if on the sticker where it was made, etc

A batch of my recent papst fans were made in Hungry (from what I remember so don't hold me to it just yet). The 120mm ones don't click. But the 80mm ones seem to have a very slight click. All are running at either 5 or 7v.

jimveta · Post by **jimveta** » Wed Mar 24, 2004 7:03 am

forgot about this post.. hehe.. anyways, thanks for the replies and yes, after you mentioned it, i noticed all of the fans in this clicking batch were made in hungary, except for the high speed 120 i mentioned (which was made in germany). .. oh well, i guess i'll live with it for now.. trying out panaflo next time.

RaNDoMMAI · Post by **RaNDoMMAI** » Wed Mar 24, 2004 4:14 pm

i was wondering

how bad is this clicking? can u only hear it when u put ur end next to the fan? or do u hear it like from anywhere?

Can u hear it from a foot away?

Thx
~RaNDoM

slimeballzz · Post by **slimeballzz** » Tue Jun 08, 2004 6:30 pm

al bundy wrote:All sizes of Papst fans I've tried have clicked when undervolted, except for the Papst 120mm FGL fans.

Seens to me that any Papst fans made in Hungary click, even the FGL ones! I have 3 120mm Papst fans (2 F/2GL and 1 FGL) and they ALL CLICK at default 12v and undervolting them! Wished I didn't purchase them as I'm not happy....

Anyone know where I can get Papst fans MADE IN GERMANY? Would like to try a couple of those....

acaurora · Post by **acaurora** » Tue Jun 08, 2004 9:03 pm

I have a 4412FGL for my intake in my SLK3700BQE, and the only noise I can hear is a low hum. However, this is probably due to vibration transferring to the raw metal of the case. I have EAR isolators coming in tomorrow, i'll let you know if tha tmakes any difference. I currently use regular metal screws + a silicone seperator.

Tigr · Post by **Tigr** » Wed Jun 09, 2004 12:15 am

I did not have any clicking sounds from any of the 80mm Papst fans, either old or recent. Of 92mm, I have only old ones and they are fine. The 120mm fans are the ones that annoy me: from the recent purchase, 2 out of 3 fans exhibit this clicking sound.

It does seem to me that Papst fans are deteriorating in quality since they moved the production into "cheaper" places.

EDIT: On the subject of "made in Germany", I could not find any. Let us know if you find any for it seems there is no more production in Germany at all.

bomba · Post by **bomba** » Wed Jun 09, 2004 5:52 am

Please post more information about these bad Papst fans such as the model number and country of origin. Note that Papst like most fan manufacturers makes a wide range of fans, most are higher speed ball bearing models which normally would not be of interest for silent computing.

My (2) 120mm 4412FGL fans are quiet, no clicking or mechanical noise. I've run them at both 5 and 7v (DC voltage, not pwm). Haven't checked to see where they were manufactured, tho.

However, Papst fans are pricey, if folks are paying a premium for the low speed, sleeve bearing, quiet Papst fans and getting clicky fans then perhaps Papst fans should be avoided.

Tigr · Post by **Tigr** » Wed Jun 09, 2004 1:23 pm

Here is one of the clicking fans:

TYP 4412 F/2GL
Ass. by PAPST in Hungary 26.03

The other two are installed and I am not going to check them.

The funny thing is that it says on the cover : 7 - 14 V DC. I never paid attention to this and I run all of them at 5 V

RLiu818 · Post by **RLiu818** » Fri Jun 11, 2004 4:21 pm

My 4412 FGL does NOT click.

but my 4412 F/2GL DOES click

both made in Hungary

Abarth · Post by **Abarth** » Sun Jan 02, 2005 4:36 am

I also have a clicking 4412 F/2GL.
Same here: ass. by Papst in Hungary 24.04.
The noise was definitely disappointing; i've put my Sonata case fan back in.

I've tried 3 different papst fans (8cm/12cm) in the past, all of which had unwanted mechanical noise.
Guess it's better to stay away from papst.