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My fractal fans have noise, is it normal?

post #1 of 12
Thread Starter 
Hi.

I bought a fractal r4 case from amazon ago one month, and the 140mm stock fractal case fans (front and back, both) have a minimal but noticeable engine/vibration noise (with any speed 5-7-12v), is it normal? are there any solution for avoid it?

For sure I remove the front fan from plastic and out of the case still have the noise, idem when I attach the fan directly to the motherboard and from bios used silent profile. It looks like it's a normal noise of these fans. My cpu cooler is a noctua nh-U14s, and the noctua fan haven't this class of noise.

Therefore, if this noise is normal, should I replace these case fans or stay with them? are there case fans that haven't this noise and be very quiet with good airflow and cheaps? (for use at 7v and with square frame for fit in the frontal plastic of my fractal r4). I seen the noctua A14 ULN and surely don't have any noise but are quite expensive and if I replace the fractal fans need buy 2 or 3...

Thanks.
post #2 of 12
If you can live with it, then don't worry about. If you plan to replace the fans in the future, might as well keep them until you buy replacements.
post #3 of 12
I have an Arc 2 Midi and the fans are close to silent on 5 & 7 volts. I've not needed to run them at 12V as I don't game. Fractal are very good about replacing things that are broken.
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post #4 of 12
Thread Starter 
Quote:
Originally Posted by Alan G View Post

I have an Arc 2 Midi and the fans are close to silent on 5 & 7 volts. I've not needed to run them at 12V as I don't game. Fractal are very good about replacing things that are broken.

But have they this vibration noise like my fans? left a record of my fractal fan with the noise: http://vocaroo.com/i/s03ypJhSKVs3

I guess that the noise is normal, or not?
post #5 of 12
@Greg28 - is that at 12V? I don't run my fans at that speed.
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post #6 of 12
Do you have one of them as a rear exhaust on the R4, and if so could you try without the rear exhaust fan connected?
post #7 of 12
Thread Starter 
Quote:
Originally Posted by Alan G View Post

@Greg28 - is that at 12V? I don't run my fans at that speed.
The record is with the phone stuck to fan and with 7v, but at 5v also I hear that noise.

And Domiro the back fan also have this noise, i try disconnecting one and then the another but both have this slight noise, so I guess it is normal or dont know...
post #8 of 12
My workstation sits on top of my desk 18 inches away and I really don't hear much of anything from the fans. I get a little bit of noise from the WD 2TB Black HDD but that's about it. Of course I'm 66 years old now and maybe my hearing isn't quite as acute as you youngsters on this forum!
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post #9 of 12
Fan 'noise' is a combination of grill, filter, fan and whatever else the air is moving through. 'Noise' = 'breeze'. The fan blades moving through the air make some noise. Added restriction to airflow increases the fan blade noise as well as generating noise of it's own as air flows through the grill, filter, etc.

My sig rig idles at 700rpm case & CPU@24-26c; 1000rpm GPU@27-31c. 100% load is 850-1000rpm case & CPU is 950-1050ron@44-50c; GPU is 1400-1700rpm@40-55c. The GPU fans are loudest but are still quieter than HDDs. Normally I cannot hear anything but HDDs a meter away. At full load the 'noise' is just loud enough for me to hear; if I concentrate I know system is working.

I'm building an Enthoo Primo with 9 case fans and I cannot here it 1 meter away.
post #10 of 12
Thread Starter 
Quote:
Originally Posted by doyll View Post

Fan 'noise' is a combination of grill, filter, fan and whatever else the air is moving through. 'Noise' = 'breeze'. The fan blades moving through the air make some noise. Added restriction to airflow increases the fan blade noise as well as generating noise of it's own as air flows through the grill, filter, etc.

My sig rig idles at 700rpm case & CPU@24-26c; 1000rpm GPU@27-31c. 100% load is 850-1000rpm case & CPU is 950-1050ron@44-50c; GPU is 1400-1700rpm@40-55c. The GPU fans are loudest but are still quieter than HDDs. Normally I cannot hear anything but HDDs a meter away. At full load the 'noise' is just loud enough for me to hear; if I concentrate I know system is working.

I'm building an Enthoo Primo with 9 case fans and I cannot here it 1 meter away.
Then the noise of my fractal fans is normal in case fans except noctuas? the corsair af140 here does a similar noise (a little louder i think): http://www.youtube.com/watch?v=1YHpRC-7yt4 (second 1.09)
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