Noiseblocker NB-Multiframe M12-S1 120mmx25mm Ultra Silent Fan
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- Unique, multipart vibration-free chassis with integrated structure-borne sound absorbers and glass fibre-reinforced frame
- Reverse pole and overload protection, restart function, extremely failsafe
- Extremely low start voltage
- Extremely low-noise and long-life NB-NanoSLI bearings
- Includes assembly material and additional sealing/ decoupling frame; 6-year warranty
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Noiseblocker NB-Multiframe M12-S1 120mmx25mm Ultra Silent Fan - 750 RPM - below 6 dBA
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On further review, the temperatures in the case are still the same, so it's not really an improvement.
It's an 800 RPM fan so it doesn't move an awful lot of air, but it's so much quieter than other fans you can run several of them and it will still be quieter (because sound scales logarithmically you'd have to run 10 11dB fans to make as much noise as one 21dB fan).
I'm running four of them in my case in place of two regular 1450RPM fans that used to be in the case. My system is drastically quieter than it was when I was running two higher velocity fans, and I get the same cooling performance (within a degree or two).
Great fan, and even better considering the low price - definitely recommended!
Bought 3 of them, put 1 in the front, one on the roof of the pc case, and one replaced the fan that was connected to the radiator of a H80 cpu waterblock. The fan that came with the waterblock was terrible, used this one, same cooling, quiet as can be.
I am using a EVGA NVIDIA GT 550TI video card which has its own cooling fan and have a OCZ 700 watt power supply that exhausts heat externally. As a result this is the primary cooling fan for the motherboard/case. It appears to not move enough air to get the job done. I have switched back to a higher volume (air and noise) fan and the problem seems to have gone away.