Review Noctua 140mm fans with a round frame

Review Noctua 140mm fans with a round frame

Austrian fans have always been a special price, high quality, quietness and excellent performance. We have already got acquainted with their products and today they left a very good impression behind. With Redux series fans and a few industrialPPC you meet for a long time, about them you can read at this link . Just recently you could see the first of the pair testing 140mm Noctua fans industrialPPC , which actually opened a series of such reviews. Testing of 140mm fans with circular frame will be quite interesting to holders of two-piece super-cooler, the more test takers will be quite different from each other.



Noctua NF-P15 PWM is supplied in the elite white-chocolate box with an abundance of information about the technology, performance and capabilities of the fan.

On the reverse side there is information in nine languages and the box further has a pair of turns with information about the aerodynamic features, bundled and technologies used in this model fans.

Review Noctua 140mm fans with a round frame


Before us is a couple of elite Noctua NF-A15 PWM. A feature of this model is the frame, and in particular its size 140x150x25mm, because of the width of 150mm in its name NF-A15. Some of this can be misleading, the buyer will think that it’s like a 150mm impeller like the TY-150. But there is, inside the frame is identical to 140mm impeller model NF-A14.Rotating impeller bearing SSO2 , fan speed of about 300-1200 \ min. Brown impeller bears seven broad blade with three notches at the ends of the blades are at quite an acute angle of approximately 40 degrees, the length of one arm is 45,5mm, the diameter of the impeller is 133mm.

On the reverse side there is a sticker that lists the fan model and brief specifications.

The thickness is 25mm fan, this is the standard.

All fans are equipped with a range of premium rubber antivibration inserts. And though the frame NF-A15 is not a standard, it is no exception. On expanding the scope of present small round rubber antivibration inserts.

The level of technological equipment of the company’s products Noctua has always been high and the fan in the collection of the best of them. The Noctua NF-A15 PWM use very efficient impeller geometry with special Flow Acceleration Channels .Visually, it manifests itself in the presence of three notches on each of the blades. The purpose of these cuts to prevent turbulence of the air flow at the ends of the blades of the fan because it appears more quiet operation at medium and high speeds. These notches provide focus airflow which in turn gives a higher efficiency.

The same technology used in the frame of the fan, fan it has a stepped structure. This technology can improve the aerodynamic properties of the fan, allowing ease the transition from laminar to turbulent flow and thereby reduce noise at the input of the air flow. This technology is called AAO (Advanced Acoustic Optimisation) .


Indeed it is the fan value for money, very quiet operation over the entire rpm range of applications. In the engine there are no spurious sounds. Ideal in round frame, more nearly perfect, is it not a little fan.

Review Noctua 140mm fans with a round frame


Series fans REDUX I’ve already presented earlier this article, you can find the link ” New owl. Review Noctua fans series Redux and IndustrialPPC “. Today, we will talk about its individual representatives Noctua NF-P14r REDUX-1500 PWM. As you can understand, the fans series REDUX are conditionally affordable solution because of lower cost, meager set and a simpler and perhaps cheaper Bearing SSO . But beyond that, it would be desirable to supplement that Noctua NF-P14r REDUX-1500 PWM, replaced the Noctua NF-P14 FLX, which is now out of production.

In fact, the fan package is simplified, it is an ordinary cardboard box gray.

On the reverse side there is a sticker specifications fans.

Review Noctua 140mm fans with a round frame

Inside the package, the fan is in a cardboard box, it is a little to protect it from damage during transport.

Package is quite meager, except for the fan only four screws to secure it, but on the other hand, more and is not necessary.


As I said Noctua NF-P14r REDUX-1500 PWM, I replaced the Noctua NF-P14 FLX, which now is no longer available. At the same time, unlike the elite progenitor NF-P14r has the support of PWM control and become a bit faster than its maximum speed of today is 1500 RPM, and a minimum of 450 RPM. Fan turned gray, it is a distinctive feature line REDUX. Round light gray frame with a 120mm bracket, keeps the dark gray with nine impeller vanes. At present notches blades that have technological explanations, I’ll explain further. Connected via the 4pin fan connector cable is quite long 400mm fan, and he wore a rubberized braid.

On the reverse side there is a sticker with the name and brief specifications.

Review Noctua 140mm fans with a round frame

The thickness is 120mm fan, as well on the body is marked 140409DE. The fan casing is devoid of any anti-vibration pads.

As it is reborn as NF-P14 FLX, the NF-P14r retained its geometry of the impeller, the name of her Vortex Control Notches . The essence of this technology is that each blade are notches, their task is to remove the extra air flow turbulence and enhance the level of static pressure.


The fan remains quiet until 900ob \ minutes after the impeller spins above this mark with the fan gets pretty noisy in comparison with NF-P15. Noctua NF-P14r REDUX-1500 PWM has no stray sounds of the engine, it’s still a Noctua.


Pairwise Testing Austrian fans with circular frame came to an end. Undoubtedly, the first place gets a Noctua NF-P15 PWM, very quiet, with a good level of performance and a rich set of delivery, it takes a well-deserved first place, minus one is its high cost. But his opponent Noctua NF-P14r REDUX-1500 PWM with a lower cost, has shown, unfortunately, the worst results. NF-P14r slightly more noisy at medium and higher speeds and slightly less performance at the same level of noise. Both fans have at least different, but quality bearings which confer a very high service life, more than 150,000 hours. Also, the quality of materials and workmanship for both models correspond to the declared high level of Noctua.

Review Noctua 140mm fans with a round frame updated: May 3, 2015 author: John Malkovich