Has anyone bought the industrial noctua f12 fans if so how loud are they?

Godloki

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Jan 3, 2014
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Thinking of getting the industrial f12 fans mainly because I hate the color of the consumer ones. Has anyone used these in a regular pc? If so how loud are they?
 
Solution
Well, if the spec sheet I read is correct, 29.7 dB is moderately quiet, comparative to a whisper a few feet away. The 10-20 dB range is often referenced as the sound of wind through trees or leaves, 30 is a whisper, 60-70 is equal to having a conversation with someone.

There are quieter options such as corsair quiet series, but they provide far less CFM comparatively.
Well, if the spec sheet I read is correct, 29.7 dB is moderately quiet, comparative to a whisper a few feet away. The 10-20 dB range is often referenced as the sound of wind through trees or leaves, 30 is a whisper, 60-70 is equal to having a conversation with someone.

There are quieter options such as corsair quiet series, but they provide far less CFM comparatively.
 
Solution
Thanks for the good response. I have the stock h100i fans and when they are running full blast I consider them pretty noisy but I have seen some who consider them fairly quiet and some who think they are really loud. So I'd like to hear as many opinions as possible.