Noctua NF-A14 iPPC-2000 PWM, Heavy Duty Cooling Fan, 4-Pin, 2000 RPM (140mm, Black)

Using four of these in push/pull on a Corsair H115i radiator and I am loving them. Gives truly exceptional flexibility between near silent to quiet performance from 550 to 850rpms via PWM control. These can also move air with authority at 100% but noise does begin to be a problem. Although with four working together they are moving around 200 cubic feet per minute with essentially just the sound of rushing air. The 3 phase motor, Self-Stabilizing Oil Bearing, and rubber corner inserts work well to help mitigate unwanted vibration. My personal experience with their cooling capability while paired with the Corsair H115i is that while using a PWM hub and Corsair's Link software absoloutely surpases the stock Corsair 140mm fans. They cool the radiator more effectively and quietly. I can usually just keep Corsair's Link software at quiet to balanced which results in water temps not going above 29 degrees C in a 68 to 70 degree F room. This will keep my overclocked I7-5820k (4.5GHz at 1.31v) under 60 degrees C for gaming and even some other CPU intensive tasks. I have these fans mounted as an exhaust for my case. Pros: - Top quality construction materials - Vibration isolating rubber inserts - Smooth PWM control through entire RPM range - 3 Phase motor - 150,000 hour MTBF and 6 year warranty - Square frame for better performance on radiators - 4.18mm H2O of static pressure - good for use on radiators - 107 CFM (182.5m^3/h) open air flow rate at 31.5 dB/A Cons: - Cost, but you're getting top of the line - Higher noise output than usual for Noctua but that can be remedied with PWM control - Stock vibration isolating rubber inserts are still brown, although you can get other colors Bottom line: You are getting great fans that will last for years with a warranty to match. Their performance to noise ratio is tough to beat and they deliver exceptional cooling when circumstances require exceptional solutions.

As the title suggests is this $30 fan worth your money? I've compiled some figures that I find interesting and hopefully they will help you in choosing. I purchased this fan to upgrade the NZXT FX-140 PWM fan that came with my Kraken X40 liquid cooler. It was between this fan and the Noctua NF-A14 Premium Quiet fan. I got the PPC version because of its superior static pressure and wider range of RPM, while hoping I can find the perfect balance between cooling performance and sound. Due to the design of my Ibuypower Revolt Mini ITX case there is no room for a case fan. My Kraken X40 Liquid Cooler and its single 140mm fan is the only thing I have extracting heat out of the case. So with that in mind I needed something that had very good static pressure and could hopefully be quieter than the stock fan my cooler comes with. Even the fan intake is obstructed by the CD/DVD Drive, making a high static pressure fan even more important. Based on the specifications the Noctua should easily out-perform with lower RPMs and more pressure. My method for testing might not be the most scientific but the results are repeatable and I'm confident in their figures. Your numbers may vary based on your own system, location, software and tools but my purpose is just to compare and demonstrate the various properties of this fan compared to the one it is replacing. Software for testing ~ NZXT Kraken Control I can manually control fan speeds using the NZXT software as well as monitor liquid temps. Fans will be running the stock 12 volts. ~ Intel Extreme Tuning Utility Intel Extreme Tuning Utility allows me to test the cooling performance gains if any. Each Stress test will run for 10 minutes, waiting until liquid temperatures settle back under 37c before testing again. ~ Sound Meter via Smartphone App This is an application that turns your smartphone's microphone into a Decibel meter. The decibel reading won't be an exact representation of the fan dBA but it will give me something to compare the sound of the two fans I'm testing, while removing my own ears from trying to guess which one sounds quieter. The fan will be installed within the computer with the case closed. The computer is inside its own cabinet within an enclosed entertainment center (backing removed). The phone is about 6 inches away from the computer itself and not the fan. Noctua NF-A14 PWN fan 500-2000 RPM 4.18 mm-H2O 31.5 dBA 107.4 CFM NZXT FX-140 PWM fan 800-2000 RPM 0.8-2.2 mm-H2O 21-37 dBA 54.0 - 98.3 CFM The NZXT FX-140 PWM Stress tests 100% [*1950 RPM] fan speed keeps the liquid temperature at 41.8c Decibels: 64.5 50 % [*1350 RPM] fan speed keeps the liquid temperature at 44.3c Decibels: 53.5 25 % [*950 RPM] fan speed keeps the liquid temperature at 48.0c Decibels: 51.5 * Fan speeds are +/- 30 RPM, observed with NZXT Kraken Control. The Noctua NF-A14 Industrial PPC Stress tests 100% [*1800 RPM] fan speed keeps the liquid temperature at 39.8c Decibels: 56.0 50 % [*1075 RPM] fan speed keeps the liquid temperature at 43.0c Decibels: 50.5 25 % [*540 RPM] fan speed keeps the liquid temperature at 46.8c Decibels: 49.5 * Fan speeds are +/- 30 RPM, observed with NZXT Kraken Control. Conclusion The Noctua fan only has 7 blades with a gap large enough to fit a finger between them. This is by no means a quiet fan, anything over 50% fan speed is quite audible but its smooth operation makes the noise less annoying even at 100%. It's build quality holds up to its reputation and the results are in black and white. This is quite an expensive fan ($30) but for me it offers a lot of advantages over cheaper alternatives. For my purposes, and lucky to only need a single fan, I feel slightly ok with its price but of course wish they were a little less expensive. Open Hardware Monitor and Kraken Control both show the Noctua fan reaching maximum speeds of 1850 RPM, so within the +/- 10%. The fan simply outperforms the outgoing fan in every category offering lower temperatures, RPMS, and noise. The static pressure is definitely showing its worth and it's unfortunate to not know the minimum specs of this fan since Noctua doesn't advertise them. Still though even at 100% this fan is much quieter and because of its awesome cooling it won't need to stay at 100% for very long. So to answer the question... is it worth $30? That's for you to ultimately decide. I'm happy as I can now live in relative peace without the ramping up of a loud fan while also and getting cooler system temperatures. It didn't make as big of an impact on cooling as I would have liked, but that shows the radiator isn't that restrictive. I can also set my fan curve to be a little more aggressive without the obvious added noise. I think this may be the current king of 140mm SP fans, but not without a price.

Ich habe die Lüfter für mein PC gekauft, weil die originale Lüfter von Corsair waren sehr zwar sehr leise, aber hatten kein Power. Die neuer Lüfter sind auf dem voll Power ist laut. Unter 1000 Umdrehungen ist der kaum hörbar und bittet trotzdem genügend Leistung. Verarbeitung ist sehr gut und der macht kaum Vibrationen. Also ich kann das Produkt nur weiter empfehlen. Einkauf lief wie gewohnt problemlos und Lieferung war schneller als ich es erwartet hatte. Ich bin begeistert von dem Produkt und dem Verkäufer :)

Los mejores y más silenciosos

You're probably sitting there thinking- "well, how loud are my fans now?" and "Do I really care that these are 5, or 8, or even 10 db louder?" If you are buying and installing these into your rig, be sure you know -ANYTHING- about controlling the speeds. You might as well just start your drone you keep to spy on your neighbours next to you if you let these hit max speed. I slapped 4 of these into my rig after doing some decibel research... Okay honestly, I just watched a few videos on youtube of comparisons, and I got to say those sound/power tests don't do it justice. If you are going from some low noise fans to an addition of 10db, its no joke. These can get loud enough to drown out your parents fighting about your poor grades in school. I mean, like, come on guys, its been six years since I dropped out. Get over it. The noise comes with a lot of air though. These kicked up so much air it began ripping the blackout paper off the window in my room- almost letting light hit my rare collection of scantly clad Japanese figmas. That alone could cripple the over-all rating of this review- if it hadn't been for how cool these guys keep my PCs over all temps. I saw a drop of about 10c across the motherboard (Idling), as well a drop of another 8-10 on the CPU. (Idling). I set up a profile that keeps them from revving up past 1000rpm and that seems to be a nice golden spot. That being said, why did I buy something that goes to 2000rpm... I think I have some things to think about... Anyways. Again, be sure you know how to do some power control on these. Good lord I was not ready for these.

I only use Noctua fans, and these have an annoying whining nosie, im just waiting for NF 140mm G2 chromax fan to replace these ones i have

These are excellent fans in terms of RPM range and static pressure. They are also relatively quiet at higher RPMs, up to 2000, compared with other fans - yes anything spinning that fast will be noisy, but these are quieter than the stock Corsair SP140L fans on my H115i radiator. They are also more efficient at higher RPMs thanks to the 3 phase motor technology. However, at lower RPMs there is a constant noise coming from the 3 phase motor, which is louder than the air movement sound. It is on par with the constant high pitched hum that I get from my H115i pump on the CPU, which is equally annoying if you are at all close to your computer. The noise from the PPCs is more like a grinding/churning noise, which disappears at higher RPMs but then is replaced by noise from air movement, so the fans are never really silent. The 3 phase motors might be better suited to a noiser fan overall than fitting them on a high SP silent fan. Reviews are mixed on these fans as to whether they are noisy or not, and ppl's verdicts are subjective, as some ppl have their computers under the desk and/or are more 'laid back' and don't really notice finer background noise whilst others are more detail oriented or OCD and it drives them nuts. Whilst a youtube review showed these PPC fans matching the low noise of the ordinary NF-A14s at equivalent RPMs, I asked Noctua themselves and they said that the PPC fans were noisier at lower RPMs, from 800 to 1200 but otherwise the performance at equivalent RPMs was identical. The RPM range of the standard fans starts from a lower value, at the same voltage, and you will get lower RPMs from the standard fans compared to the PPCs if you don't use a voltage stepper of some kind to lower the voltage of the PPC fans. Lower RPM = quieter obviously anyway, without the constant churning noise. I chanced it from the reviews and regretted it and sent them back and am now using NF-A14 chromax instead (I hate brown fans lol they are hideous). So overall, these are great fans, but just not suited to a rig that is really meant to be quiet.