heading

Conceived for industrial heavy duty applications that require enhanced cooling performance and advanced ingress protection, the NF-A14 industrialPPC (Protected Performance Cooling) is a ruggedised high-speed version of the award-winning retail model. Thanks to the outstanding aerodynamic efficiency of the NF-A14 design and the use of a novel three-phase motor, the industrialPPC version provides superior airflow and pressure capacity while keeping noise levels and power consumption moderate as against comparable high-speed fans. While its fibre-glass reinforced polyamide construction and certified water and dust protection make the NF-A14 industrialPPC suitable for operation in challenging environments, the renowned SSO2 bearing technology guarantees an MTBF of over 150.000hrs. Topped off with Noctua’s trusted reliability and 6 years manufacturer’s warranty, the NF-A14 industrialPPC is an ideal choice for highly demanding applications that require superior flow rates and ultimate dependability.
Details
Award-winning NF-A14 design

Award-winning NF-A14 design

Having received more than 100 awards and recommendations from the international press, Noctua's NF-A14 has become a proven premium choice for 140mm cooling needs. Its renowned efficiency has convinced tens of thousands of customers all over the world.
3000rpm industrialPPC version

3000rpm industrialPPC version

Running twice as fast as the 1500rpm retail version, the NF-A14 industrialPPC-3000 provides extreme airflow and pressure performance. Combined with the industrialPPC series' robust polyamide construction and advanced protection features, this makes the fan ideal for challenging industrial applications.
Three-phase motor design

Three-phase motor design

While most axial fans use single-phase motors with 4 slots, Noctua's industrialPPC fans feature a three-phase design with 6 slots, which provides smoother transitions between the slots and thus allows for even higher running smoothness, further reduced vibrations and unprecedented energy efficiency.
Class-leading energy efficiency

Class-leading energy efficiency

While the standard NF-A14 is one of the most energy efficient 1500rpm 140mm fans on the market, the industrialPPC version's three-phase motor provides a further 10% reduction in power consumption when compared at 2000rpm.
Fibre-glass reinforced polyamide construction

Fibre-glass reinforced polyamide construction

Both the impeller and the frame of Noctua’s industrialPPC fans are made entirely from fibre-glass reinforced polyamide. This material can withstand temperatures up to 140°C and makes the fans even more robust and break-proof than Noctua’s standard fibre-glass reinforced PBT fans.
Certified IP52 water- and dust protection

Certified IP52 water- and dust protection

Thanks to a special varnish coating that covers the motor and PCB, the NF-A14 industrialPPC complies with the ingress protection rating IP52. This means that it is not only highly dust resistant but also withstands dripping water equivalent to 3mm rainfall per minute.
Flow Acceleration Channels

Flow Acceleration Channels

The NF-A14 impeller features suction side Flow Acceleration Channels. By speeding up the airflow at the crucial outer blade regions, this measure reduces suction side flow separation and thus leads to better efficiency and lower vortex noise.
AAO Frame

AAO Frame

Noctua's AAO (Advanced Acoustic Optimisation) frames feature integrated anti-vibration pads as well as Noctua's proprietary Stepped Inlet Design and Inner Surface Microstructures, both of which further refine the fan's performance/noise efficiency.
Stepped Inlet Design

Stepped Inlet Design

Noctua's Stepped Inlet Design adds turbulence to the influx in order to facilitate the transition from laminar flow to turbulent flow, which reduces tonal intake noise, improves flow attachment and increases suction capacity, especially in space-restricted environments.
Inner Surface Microstructures

Inner Surface Microstructures

With the tips of the fan blades ploughing through the boundary layer created by the Inner Surface Microstructures, flow separation from the suction side of the blades is significantly suppressed, which results in reduced blade passing noise and improved airflow and pressure efficiency.
Integrated anti-vibration pads

Integrated anti-vibration pads

Integrated anti-vibration pads made from extra-soft silicone minimise the transmission of minute vibrations while maintaining full compatibility with all standard screws and other mounting systems.
SSO2 Bearing

SSO2 Bearing

The NF-A14 industrialPPC features the further optimised second generation of Noctua's renowned, time-tested SSO bearing. With SSO2, the rear magnet is placed closer to the axis to provide even better stabilisation, precision and durability.
Metal bearing shell

Metal bearing shell

In order to guarantee the highest possible degree of manufacturing precision, minimum tolerance and excellent long-term stability, the NF-A14 industrialPPC sports a CNC milled bearing shell made entirely from brass.
Custom-designed PWM IC with SCD

Custom-designed PWM IC with SCD

Supporting fully automatic PWM speed control, the NF-A14 industrialPPC uses Noctua's custom-designed NE-FD2 PWM IC for three-phase motors. The NE-FD2 integrates Noctua's proprietary Smooth Commutation Drive (SCD) technology, which suppresses PWM switching noises and thus makes the fan quieter at lower speeds.
6-year manufacturer’s warranty

6-year manufacturer’s warranty

Noctua fans are renowned for their impeccable quality and outstanding longevity. Like all Noctua fans, the NF-A14 industrialPPC features an MTTF rating of more than 150.000 hours and comes with a full 6-year manufacturer’s warranty.
Customisable for industry clients

Customisable for industry clients

For industry clients, various features, certificates, packaging options and accessories can be customised on requests. For example, we can provide 24V versions, different connectors and speeds, different cable length or UL and TÜV certification. Please feel free to contact us for customised offers!
NF-A14 industrialPPC-3000 PWM
FAN Specification
Size
140x140x25 mm
Mounting hole spacing
124,5x124,5 mm
Connector
4-Pin PWM
Bearing
Blade Geometry
Frame Technology
AAO
Rotational Speed (+/- 10%)
3000 RPM
Min. Rotational Speed (PWM, +/-20%)
800 RPM
Acoustical Noise
41,3 dB(A)
Static Pressure
10,52 mm H₂O
Max. Input Power
6,6 W
Max. Input Current
0,55 A
Voltage
12 V
MTTF
> 150.000 h
Scope of Delivery
  • Fan
  • 4 Fan Screws
Warranty
6 years
Ingress Protection
IP52
Material
Fibre-glass reinforced polyamide
Motor type
NF-A14 industrialPPC-3000 PWM
A-Series fans
Video Reviews
The following video reviews have not been created by Noctua. Responsibility for the information and views expressed in the videos lies entirely with the authors.
language
language
14.05.2017 // TechHardware.it
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NF-A14 industrialPPC-3000 PWM Review

Promosse le performance sui radiatori e dissipatori AIO, riescono a fornire un discreto miglioramento in termine di performance. Eccellente anche la garanzia: Ben 6 anni. Le ventole vengono proposte in versioni IP67 ed IP52 per le versioni da 2000rpm e solo in versione IP52 per le versioni da 3000rpm. Le versioni che consigliamo sono le versioni da 3000rpm in quanto riescono ad essere molto versatili per l’uso di tutti i giorni.
Test verdict: "La qualità e performance espressa dalle Noctua IndustrialPPC-12v è innegabile. Noctua è riuscita a sviluppare delle ventole di classe superiore coniugando ottima qualità costruttiva, performance ai vertici e gradevolezza estetica." (Tommaso Biallo, TechHardware.it)
28.12.2016 // OCClub.ru
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NF-A14 industrialPPC-3000 PWM Review

«Примочки», под которыми конечно подразумеваются цветные силиконовые гвозди и угловые подкладки, - они мне понравились. Называются, напомню, Anti-Vibration Pads (NA-SAVP1) и Anti-Vibration Mounts (NA-SAVP2). Недорогие, в упаковке их много, и реально снижают шум. Поменять всю систему охлаждения в корпусе – это влетит в «копеечку», а силиконовые гвозди могут немного все сделать тише, да и на будущее останутся. Гарантия 6 лет=) Серия IndustrialPPC – решения скорее специализированные, но 12 В модели к покупке можно смело рекомендовать. И я не знаю насколько на заводе будет полезна защита по стандарту IP67, но за возможность помыть вентилятор под краном просто спасибо Noctua. Redux – универсальность и доступность. Noctua, как известно, делать хорошие вещи, но дорогие. Благодаря изменению комплекта, а как следствие и конечной цены, но сохранению подхода к самому изделию, вентиляторы серии Redux в некоторой степени стали «ближе к народу».
Test verdict: "В этот раз не будет привычных плюсы/минусы. И силиконовые крепления Chromax, и вентиляторы серий IndustrialPPC и Redux – все это к покупке можно рекомендовать. К тому-же, на абсолютно всю продукцию компании 6 лет гарантии, что как-бы намекает на качество." (Oleg Ubeiko, OCClub.ru)
29.10.2016 // Top10Games.es
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NF-A14 industrialPPC-3000 PWM Review

Noctua ha trabajado muy bien y ha realizado correctamente su trabajo con esta nueva gama, más destinada a equipos tipo servidores que estén encendidos mucho tiempo, dado a que posee un buen caudal de aire y una larga duración. También debido a sus revoluciones, ofrecen más ruido que su anterior gama Redux, un dato quizás importante a la hora de adquirir uno de estos IndustrialPPC. Noctua también ha mejorado en el aspecto de la personalización, pues ha mejorado, permitiendo añadir colores personalizados a nuestros ventiladores IndustrialPPC gracias a la gama de accesorios Chromax, la cual nos ha encantado.
Test verdict: "Noctua ha lanzado esta gama de ventiladores muy profesionales con un buen caudal de aire y refrigeración. Además gracias al soporte de su nueva gama Chromax, podemos personalizarlo para que se adapte como nos gusta a nuestro equipo." (Adrián José Pérez Toré, Top10Games.es)
26.09.2016 // JotaReviews.pt
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NF-A14 industrialPPC-3000 PWM Review

Como já foi dito as Noctua IndustrialPPC são ventoinhas para quem pretende o maior desempenho possível e que aguentem qualquer tipo de ambiente, são ventoinhas com uma construção fabulosa e com um alto desempenho. Nos nossos testes no Noctua NH-D15S as ventoinhas apresentaram bons resultados, sendo que quem pretender silencio estas ventoinha são imediatamente excluídas e com isto quero dizer que o nível de ruído pode-se tornar bastante incomodativo. A nível de acessórios poderiam incluir um adaptador para reduzir a voltagem e até mesmo acessórios para fixar as mesmas.
Test verdict: "No geral é um produto que recomendamos a quem pretende ter o maior desempenho possível e que não se importe com o nível de ruído. A qualidade de construção é o factor chave na escolha destes modelos." (João Teixeira, JotaReviews.pt)
12.05.2016 // Hardware.Info
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NF-A14 industrialPPC-3000 PWM Review

For overclockers, it's mainly important for a fan to generate as much airflow as possible, and the noise matters less. The Noctua NF-A14 IndustrialPPC 140mm PWN with SSO2 bearing performs best here: on 12V it generates 105 cfm airflow.
Test verdict: "The Noctua NF-A14 IndustrialPPC-3000, Thermalright TY-143 and NZXT FX-140 PWM receive our Excellent Choice Award, as they are the most powerful case fans, with or without a radiator. The Noctua scores best" (Farzin Parham, Hardware.Info)
21.03.2016 // Turkchip.com
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NF-A14 industrialPPC-3000 PWM Review

Noctua'nın detaylara verdikleri önem sayesinde Industrial fanlar ile soğutma teknolojisini bir adım ileriye taşıırken, hava üfleme basıncı, sessizlik ve kalite konusunda tartışılmaz ürünler üretmişler. Noctua fanları kasamıza montaj ettiğimizde her şey çok değişti. Kasa birden sessizleşti ve ısılarda gözle görülür düşüş oldu.
Test verdict: "Özetle Noctua Industrial fanlar; kalitesi, yüksek hava üfleme gücü, sessizliği ve kişiselleştirebilir oluşu ile Turkchip Golden Award ödülünü hak eden çok başarılı ürünler." (Murat Yildirim, Turkchip.com)
19.03.2016 // Hardware.Info
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NF-A14 industrialPPC-3000 PWM Review

Voor overklokkers is het vooral belangrijk dat een fan zoveel mogelijk airflow genereert en doet de luidruchtigheid minder ter zake. De Noctua NF-A14 IndustrialPPC-3000 140mm PWM met SSO2 bearing doet het hier het beste: op 12 volt genereert hij 105 cfm airflow.
Test verdict: "De Noctua NF-A14 IndustrialPPC-3000, Thermalright TY-143 en NZXT FX-140 PWM krijgen onze Excellent Choice Award, aangezien het de krachtigste casefans zijn, zowel met als zonder radiator. De Noctua heeft de beste resultaten" (Koen Crijns, Hardware.Info)
09.03.2016 // SmallFormFactor.net
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NF-A14 industrialPPC-3000 PWM Review

The Noctua Redux and IndustrialPPC ranges add a much needed customisation to their range. Of course, the Redux fans are of an older design, and the performance may suffer as a result. However, the greys of the Redux and the black of the IndustrialPPC range enables system builders to more thoroughly theme their build and thus the sacrifice in performance or price may be considered worth it. The IndustrialPPC range also adds a ruggedness that some systems will require – water and dust resistance will enable significantly longer lifetimes with a higher MTBF.
Test verdict: "The usual Noctua product quality is still to be found here, and these fans are well worth considering for your system. Though the IndustrialPPC (and, let’s face it, the standard Noctua product line) remain quite expensive for the functionality they provide, the Redux line brings excellent acoustics and performance to more accessible price points. And as for the IndustrialPPC fans, we get the feeling that many enthusiasts will happily look over the price point in the quest for the best." (John Morrison, SmallFormFactor.net)
04.03.2016 // pc.sk
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NF-A14 industrialPPC-3000 PWM Review

Ak hľadáte tichý ventilátor na Váš CPU chladič alebo na radiátor vodného chladenia, z dnes testovaných ventilátorov by som vyberal medzi trojicou Noctua NF-A14 industrialPPC-3000 PWM (140mm), Enermax T.B. Silence UCTB12A (120mm) a Be Quiet! SilentWings 2 (120mm), ktoré pretlačili vzduch cez chladič aj pri 7V.
Test verdict: "Víťazom dnešného testu sa jednoznačne stal ventilátor Noctua NF-A14 industrialPPC-3000 PWM, ktorý exceloval vo všetkých testovaných kategóriách a ako jediný dokázal pretlačiť vzduch cez chladič Prolimatech Armageddon pri 5V." (Lukáš Lancz, pc.sk)
23.02.2016 // DeathCaverna.it
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NF-A14 industrialPPC-3000 PWM Review

Noctua con la serie Industrial propone il frutto di anni di ricerche per proporre sul mercato un prodotto di massima qualità con standard tipici dei prodotti destinati ad usi professionali. Un prodotto con prestazioni di prim’ordine e caratteristiche di rilievo che lasciano esterrefatti dalla mole d’aria che riescono a muovere, il tutto con un rumore che è si elevato, ma che grazie al design unico delle pale, è meno fastidioso di quanto si pensi. Perchè un conto è misurare i dB, un’altro analizzarne il reale fastidio e, come sappiamo, a pari dB possiamo avere diversa percezione del rumore. Noctua anche questa volta ha rasentato la perfezione, dopo averle testate in diverse situazioni possiamo dire di trovarci di fronte ad un prodotto davvero fantastico, che rispetta gli standard qualitativi eccelsi a cui ci ha abituato la casa austriaca, un prodotto che, grazie allo standard “industriale” ed alle protezioni presenti possiamo definire come un punto di riferimento per qualità e durata. Certo queste certificazioni e garanzie hanno un prezzo, ma siamo sicuri che spendendo meno risparmieremmo?
Test verdict: "Il voto della DeathCaverna è di 5 stelle su 5, Noctua con queste Industrial fornisce un solido compromesso fra eccellenza, qualità dei materiali, sicurezza ed efficienza. Insomma il TOP al giusto prezzo!" (Alessandro Bertoni, DeathCaverna.it)

Information Sheet (PDF)

Can industrialPPC fans be used with fan controllers and resistor cables (Low-Noise Adaptors)?

Noctua recommends not to use industrialPPC fans with common PC fan controllers, resistor cables (Low-Noise Adaptors) or other devices such as potentiometers that work by applying (variable) resistance rather than actually generating different voltages such as a laboratory power supply does. Due to the higher internal resistance of the industrialPPC fans’ three phase motor, applying additional resistance will cause the fans not to start (e.g. with Low-Noise Adaptors) or to have high starting speeds (e.g. with most common PC fan controllers). Please note that the industrialPPC fans feature starting voltages between 5.5V and 6V and can be run at these voltages on devices such as laboratory power supplies or mainboard fan controllers which actually generate lower voltages rather than applying resistance. Noctua thus recommends to use either PWM or voltage based mainboard fan control or laboratory/industrial power supplies for controlling the speed of industrialPPC fans.

4-pin PWM 3-pin
Mainboard fan control PWM based yes no
Mainboard fan control voltage based yes yes
Resistor cables (Low-Noise Adaptors) no no
Common PC fan controllers no
(high starting speed)
no
(high starting speed)
Laboratory/industrial power supplies yes yes

I get a CPU fan error despite the fan is running!

Some mainboards display a CPU fan error when the fan speed falls below a certain threshold, e.g. 900rpm. If you want to run the fan below this speed (e.g. using the supplied U.L.N.A.), please adjust the threshold in the BIOS or disable CPU fan error warning.

Can I disassemble my fan for cleaning (or other purposes, e.g. painting)?

In order to ensure flawless operation over many years of usage, all Noctua fans come with a premium grade SSO bearing, which is fully sealed to prevent the entering of fine dust particles. Please note that the fan is not designed to be taken apart by the user. Removing the impeller from the frame will break the sealing of the bearing and results in a loss of warranty.

It is thus recommended to clean your fans using a duster, slightly moist tissue or canned air. Please be careful not to use too much force in order to prevent any damage to the fan. Please don’t use a vacuum cleaner as this may apply excessive force to the fan.

Can I paint my Noctua fan in order to change its color?

Since even small variations in the layer of paint can lead to an imbalance of the impeller, resulting in vibrations, higher noise levels, increased stress on the bearing and thus reduced lifespan, we do not recommend painting the fan. Please note that for the reasons stated above, painting the fan will void your warranty.

Can I run 4-pin PWM fans on 3-pin fan headers?

PWM fans come with a 4-pin connectors for fully automatic speed control via your mainboard’s 4-pin PWM fan headers. Please note that 4-pin fans can also be connected to your mainboard’s 3-pin fan headers though. When connected to 3-pin fan headers, the fan will run at full speed (unless the mainboard supports voltage based speed control).

What pin configuration do Noctua 12V fans use?

All Noctua fans feature the standard pin-configurations set out in the Intel and AMD specifications. These standard pin-configurations are used on most mainboards and fan controllers today:

pin configuration

How can I find out the direction of airflow and sense of rotation?

When looking at the fan so that the circular sticker with the Noctua logo is facing you, the direction of airflow is towards you and the sense of rotation is clockwise:

P14

How should I clean my Noctua fan?

Fans inside computer cases tend to accumulate dust over longer periods of usage. In order to maintain maximum performance, please clean your fans regularly using a duster, slightly moist tissue or canned air. Please be careful not to use too much force in order to prevent any damage to the fan. Please do not use a vacuum cleaner as this may apply excessive force to the fan and do not put the fan under running water as water residues inside the motor may lead to short circuits.
In order to ensure flawless operation over many years of usage, Noctua’s premium grade SSO bearings are fully sealed to prevent the entering of fine dust particles. Please note that the fan is not designed to be taken apart by the user. Removing the impeller from the frame will break the sealing of the bearing and results in a loss of warranty.

Can I use Low-Noise Adaptors with y-cables / multiple fans?

Yes, Low-Noise Adaptors (L.N.A.s) can be used with y-cables, but please make sure to use one L.N.A. per fan and to place the L.N.A.s between the y-cable and the fans as shown below. Never use one L.N.A. for two (or more fans) by placing it between the mainboard and the y-cable!

D15S

Can I use Low-Noise Adaptors for industrialPPC fans?

No, Low-Noise Adaptors are not compatible with Noctua’s industrialPPC series.

Which Noctua 140mm fans are optimised for airflow, which are optimised for static pressure?

Noctua only distinguishes between airflow optimised and pressure optimised fans in its 120mm range (see this page for details). For 140mm fans, there is no such distinction: Both the NF-A14 and the NF-P14 redux models are true all-rounders that provide outstanding levels of airflow and static pressure. Either of them works excellent both for case cooling and for use on radiators and heatsinks.

How can I check if my 4-pin fan header supports PWM?

Some mainboards feature 4-pin fan headers that actually don‘t use a PWM signal on Pin 4 to control the fan speed but rather reduce the voltage on Pin 2 (like a standard 3-pin fan header). As the fan speed at minimum voltage is usually higher than the speed at 20% PWM duty cycle, the fan can not reach as low minimum speeds under voltage control as under PWM control. Please refer to your mainboard manual to check whether or not your mainboard has 4-pin fan headers that control the fan speed by reducing voltage on Pin 2 rather than by changing the PWM duty cycle on Pin 4:

4 pin fan header types

Note that mainboard manufacturers use different terms to indicate that Pin 4 is not being used for PWM control (e.g. “+5V”, “VCC” or “NC”), but if one of these terms is used, you can be sure that the fan header does not support PWM. If Pin 4 is described as “Speed Control” or “PWM” or the like, you can be sure that the fan header supports PWM.

Unfortunately, the description of Pin 2 is not always a clear indication as some manufacturers use terms such as “Fan PWR” or “Power” for both types of fan headers. However, if Pin 2 is described as “Speed Control”, you can also be sure that the fan header does not support PWM based speed control. If Pin 2 is described as “+12V”, this is a clear indication that the fan header supports PWM.

Please also note that in some cases, the descriptions of the pin layouts in the mainboard manuals may not be correct and some models actually allow you to switch the fan headers from voltage control mode to PWM control mode in the BIOS even though the pin descriptions do not indicate PWM support. We thus recommend to look for these options in the BIOS before taking other measures. In case of doubt, please contact your mainboard manufacturer.


If your mainboard features other 4-pin fan headers that use PWM for speed control, you can run multiple fans from these headers using Y-split cables. Make sure not to exceed the specified maximum power draw of the fan headers (usually 10-12W) though.

Can Noctua fans be used to replace noisy stock fans in NAS devices?

Noctua fans such as the 40, 60, 80 or 92mm NF-A series models are ideal for replacing noisy stock fans in NAS devices in order to make them quieter and thousands of users have managed to significantly reduce the noise levels of their NAS units this way. However, while it is easy and straightforward to replace the fans in some cases, it can be very difficult in others, so Noctua strongly recommends that users carefully research if it is possible to easily replace the fan(s) of their NAS device before purchasing a Noctua fan for this purpose. Some of the common issues that can occur when replacing NAS fans are:

  • Different pin assignment: Whereas Noctua fans use the standardised pin assignment for PC fans (see this FAQ for details), some NAS units use different assignments. For example, some devices have the power and GND or rpm and PWM pins swapped. Therefore please carefully verify that your NAS device uses the same pin assignment as standard fans. Experienced users may also change the pin assignment by cutting and resoldering the fan cables, but please note that this will void your Noctua manufacturer’s warranty.
  • Different pin functions: Noctua fans use the standardised pin functions for PC fans (see this FAQ for details); however, some NAS units use fans where certain pins serve a different function. For example, some devices use the RPM pin for “power good” signals. Therefore please carefully verify that your NAS device uses the same pin functions.
  • Firmware speed control: Some NAS devices demand a certain maximum or minimum fan speed. If the new fan doesn’t have the same or similar maximum or minimum speed, the device may display errors or even shut down.
  • Different starting voltage: Most NAS devices use voltage-based speed control. If the new fan has a higher starting voltage than the original fan, it may not start up right away. This may lead the NAS device to display errors or even shut down because it suspects a fan failure.
  • Different power draw: Some NAS devices monitor the fan’s power draw. If the new fan has a lower power consumption than the stock fan, the device might display errors or even shut down.

Please note that most NAS manufacturers don’t provide detailed documentation regarding fan compatibility and control, so users who want to replace the fans of their devices usually have to rely on “How to” guides, blog and forum posts or video tutorials. For example, there are excellent video tutorials available for changing the fans in popular Synology NAS models (DS416j, DS1515+ and DS1812+ in English, DS416/DS415/DS916/DS216/DS214 and DS1515+ in German). Please also note that fan compatibility and control can vary from model to model and even from revision to revision even if the devices stem from the same manufacturer. As a result, it is important to make sure that the information or guidelines you rely on when replacing your NAS fan are applicable to your specific model as well as your specific hardware and firmware revision.

Due to the possible issues listed above, Noctua recommends that only experienced users attempt to replace their NAS fans. Please note that since there are so many different NAS models and most of them lack documentation for aspects such as fan compatibility and control, Noctua customer support cannot assist you with compatibility issues when replacing NAS fans. Please contact your NAS manufacturer for any questions regarding aspects such as the device’s pin alignment or fan monitoring and control.

Can I use Noctua fans in my system from Acer, Apple, Dell, HP, Lenovo or other major brands?

Noctua 12V fans comply with the established specifications for standard PC systems issued by Intel and AMD. Systems from Acer, Apple, Dell, HP, Lenovo or other major brands often deviate from these specifications e.g. by using proprietary fan headers, custom pin-alignments or pin-configurations, different methods of fan speed control, etc. This can lead to compatibility issues when using Noctua fans in systems from said brands. Some of these problems can be avoided with some technical knowledge, but especially BIOS related issues (e.g. errors or shutdowns due to low fan speed) can often not be resolved. As a result, Noctua does not officially support systems from Acer, Apple, Dell, HP, Lenovo or other major brands.

My Noctua PWM fan starts to spin when the PC boots but then stops, what is wrong?

Some mainboards feature 4-pin fan headers that actually don‘t use a PWM signal on Pin 4 to control the fan speed but rather reduce the voltage on Pin 2 (like a standard 3-pin fan header). In this case, it may occur that the mainboard reduces the voltage so much that the fan stops. Please refer to your mainboard manual to check whether or not your mainboard has 4-pin fan headers that control the fan speed by reducing voltage on Pin 2 rather than by changing the PWM duty cycle on Pin 4:

4 pin fan header types

Note that mainboard manufacturers use different terms to indicate that Pin 4 is not being used for PWM control (e.g. “+5V”, “VCC” or “NC”), but if one of these terms is used, you can be sure that the fan header does not support PWM. If Pin 4 is described as “Speed Control” or “PWM” or the like, you can be sure that the fan header supports PWM.

Unfortunately, the description of Pin 2 is not always a clear indication as some manufacturers use terms such as “Fan PWR” or “Power” for both types of fan headers. However, if Pin 2 is described as “Speed Control”, you can also be sure that the fan header does not support PWM based speed control. If Pin 2 is described as “+12V”, this is a clear indication that the fan header supports PWM.

Please also note that in some cases, the descriptions of the pin layouts in the mainboard manuals may not be correct and some models actually allow you to switch the fan headers from voltage control mode to PWM control mode in the BIOS even though the pin descriptions do not indicate PWM support. We thus recommend to look for these options in the BIOS before taking other measures. In case of doubt, please contact your mainboard manufacturer.



To resolve the issue, you can:

  1. Choose a higher fan speed profile in the BIOS (e.g. „normal“ instead of „silent“, etc.) or deactivate automatic fan speed control and use a Low-Noise Adaptor instead.

  2. Use the mainboard‘s fan speed control software or 3rd party tools like Speedfan to regulate the fan speed. Unlike BIOS based fan speed control, the supplied software usually checks whether the fan has stopped and increases voltage accordingly or at least offer more options to set up the fan properly.

  3. If your mainboard features other 4-pin fan headers that use PWM for speed control, you can run multiple fans from these headers using Y-split cables. Make sure not to exceed the specified maximum power draw of the fan headers (usually 10-12W) though.

My Noctua PWM fan runs at a much higher minimum speed than advertised, what is wrong?

The specified minimum speed refers to the speed at 20% PWM duty cycle. There can be several reasons why the fan doesn‘t go as low as indicated:

  1. Many mainboards do not go below 40%, 50% or even 60% PWM duty cycle on case fan headers. Please refer to your mainboard manual to verify whether the fan header actually goes down to 20% duty cycle. If that's not the case, in some cases you can use the fan speed control software supplied with your mainboard to overcome these limitations and reduce the fan speed even further. However, 3rd party tools like SpeedFan offer greater flexibility and better options to work around the limitations imposed by the mainboard vendors.

  2. Some mainboards feature 4-pin fan headers that actually don‘t use a PWM signal on Pin 4 to control the fan speed but rather reduce the voltage on Pin 2 (like a standard 3-pin fan header). As the fan speed at minimum voltage is usually higher than the speed at 20% PWM duty cycle, the fan can not reach as low minimum speeds under voltage control as under PWM control. Please refer to your mainboard manual to check whether or not your mainboard has 4-pin fan headers that control the fan speed by reducing voltage on Pin 2 rather than by changing the PWM duty cycle on Pin 4:

    4 pin fan header types

    Note that mainboard manufacturers use different terms to indicate that Pin 4 is not being used for PWM control (e.g. “+5V”, “VCC” or “NC”), but if one of these terms is used, you can be sure that the fan header does not support PWM. If Pin 4 is described as “Speed Control” or “PWM” or the like, you can be sure that the fan header supports PWM.

    Unfortunately, the description of Pin 2 is not always a clear indication as some manufacturers use terms such as “Fan PWR” or “Power” for both types of fan headers. However, if Pin 2 is described as “Speed Control”, you can also be sure that the fan header does not support PWM based speed control. If Pin 2 is described as “+12V”, this is a clear indication that the fan header supports PWM.

    Please also note that in some cases, the descriptions of the pin layouts in the mainboard manuals may not be correct and some models actually allow you to switch the fan headers from voltage control mode to PWM control mode in the BIOS even though the pin descriptions do not indicate PWM support. We thus recommend to look for these options in the BIOS before taking other measures. In case of doubt, please contact your mainboard manufacturer.


    If your mainboard features other 4-pin fan headers that use PWM for speed control, you can run multiple fans from these headers using Y-split cables. Make sure not to exceed the specified maximum power draw of the fan headers (usually 10-12W) though.

I'm experiencing fan speed issues with my motherboard from Supermicro, what can I do?

The BIOS of many motherboard models from Supermicro expects a certain minimum fan speed (usually 700rpm), which is higher than the minimum fan speed that can be achieved with Noctua's PWM fan models. The BIOS may interpret the low minimum RPM of Noctua fans as a fan error and thus try to run the fan at 100% for a short period before going back to automatic control.. This can result in oscillating fan speeds and fan speed warnings in the BIOS or the fan management console.

Unfortunately there is usually no option to set a lower minimum value that would suit the low minimum speed of Noctua PWM fans.The issue can thus only be resolved by either disabling automatic fan speed control in BIOS, which will cause the fans to run at a constant speed, or by requesting a modified BIOS file from Supermicro, which takes the minimum fan speed of Noctua fans into account (charges might apply).

Are industrialPPC fans as quiet as other Noctua fans?

The industrialPPC models are high-speed fans for industrial heavy duty applications that require enhanced cooling performance. While their outstanding aerodynamic efficiency allows keeping noise levels moderate as against comparable high-speed fans, it is inevitable that the faster industrialPPC models are louder than the slower standard models when compared at their respective maximum speeds. For example, the standard NF-F12 PWM emits a noise level of 22.6dB(A) at its maximum speed of 1500rpm whereas the NF-F12 industrialPPC-2000 PWM emits a noise level of 29.7dB(A) at its maximum speed of 2000rpm. When both fans are adjusted to the same speed via PWM or voltage control though, the noise level is similar (except for the fact that the industrialPPC fans' high-speed motors can be slightly audible at close range when running at speeds below around 1000rpm). If you want to reduce the noise levels of industrialPPC fans, we therefore recommend reducing the speed via motherboard fan control or our NA-FC1 fan controller. If you don’t need the extended performance headroom of the high-speed industrialPPC fans, we recommend using our standard or redux line models as these provide excellent quietness of operation without speed reduction.

Which Noctua fan or CPU cooler should I buy? How to choose the right model?

Not sure which Noctua product to buy? Our detailed buying guides for fans and CPU coolers help you to choose the model that works best for you.

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