heading

The NF-A14 is a premium quality quiet 140mm fan with a square frame that complies with Noctua’s AAO (Advanced Acoustic Optimisation) standard. Its square shape and 140mm mounting holes (124.5mm spacing) make it ideal for use on watercooling radiators or as an upgrade for 140mm case fans. Featuring sophisticated aerodynamic design measures such as Flow Acceleration Channels, the NF-A14 further improves the renowned quiet cooling performance of the award-winning NF-P14. The PWM version sports Noctua’s custom designed NE-FD1 IC for fully automatic speed control via 4-pin fan headers and comes with a Low-Noise-Adaptor to reduce the maximum speed during PWM control from 1500rpm to 1200rpm. Its performance-oriented 1500rpm top speed and comprehensive speed control options make the NF-A14 PWM an elite choice for users who strive to strike a perfect balance between excellent cooling capacity and superb quietness of operation, be it on watercooling radiators, on heatsinks or in case ventilation.
Details
Square 140mm frame

Square 140mm frame

The NF-A14's square 140mm frame with 140mm mounting holes (124.5mm spacing) makes it a premium grade replacement for common 140mm case fans and perfect for use on 140mm water cooling radiators, where its square shape will ensure full coverage and best pressure performance.
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.
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 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 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 PWM uses Noctua's novel, custom-designed NE-FD1 PWM IC that integrates Smooth Commutation Drive (SCD) technology. By providing smoother torque impulses, SCD suppresses PWM switching noises and thus makes the fan quieter at low speeds.
Low-Noise Adaptor

Low-Noise Adaptor

The NF-A14 PWM is supplied with a (L.N.A.) that reduces the maximum fan speed from 1500 to 1200rpm. The L.N.A. can be used either to run the fan at a fixed speed of 1200rpm or to cap the maximum speed when using automatic PWM control.
Extensive cabling options

Extensive cabling options

The fan's short 20cm primary cable minimises cable clutter in typical applications while the supplied 30cm extension provides extended reach when necessary. Both cables are fully sleeved and a 4-pin y-cable allows the connection of a second NF-A14 PWM fan to the same PWM fan header for automatic control.
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 features an MTBF of more than 150.000 hours rating and comes with a full 6-year manufacturer's warranty.
NF-A14 PWM
FAN Specification
Size
140x140x25 mm
Mounting hole spacing
124,5x124,5 mm
Connector
4-Pin PWM
Bearing
Blade Geometry
Rotational Speed (+/- 10%)
1500 RPM
Rotational Speed with L.N.A. (+/- 10%)
1200 RPM
Min. Rotational Speed (PWM, +/-20%)
300 RPM
Acoustical Noise
24,6 dB(A)
Acoustical Noise with L.N.A.
19,2 dB(A)
Static Pressure
2,08 mm H₂O
Static Pressure with L.N.A.
1,51 mm H₂O
Max. Input Power
1,56 W
Max. Input Current
0,13 A
Voltage
12 V
MTBF
> 150.000 h
Scope of Delivery
  • Low-Noise Adaptor (L.N.A.)
  • 4-Pin Y-Cable
  • 30cm Extension Cable
  • 4 Vibration-Compensators
  • 4 Fan Screws
Warranty
6 years
NF-A14 PWM
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
31.08.2015 // SpazioiTech.it
test.gif

NF-A14 PWM Review

Il montaggio delle ventole avviene in un batter d’occhio anche se non lo si è mai fatto ed è agevolato dalla presenza di cavi di prolunga o sdoppiamento. Queste due soluzioni sono davvero silenziose, a case chiuso la loro presenza resta un vero e proprio mistero!
Test verdict: "Consiglio caldamente, o sarebbe il caso di dire freddamente (ora potete anche compatirmi per la battuta, NdR), questi due compagni delle estati italiane." (Andrea Giorgio, SpazioiTech.it)
09.02.2015 // QWERTYmag.it
test.gif

NF-A14 PWM Review

In questa recensione ci siamo realmente resi conto di quanto Noctua sia attenta ai dettagli e alla cura dei propri prodotti anche in delle “semplici” ventole che poi, in questo caso specifico, semplici non sono visto l’elevata cura nella produzione e nelle tecnologie adottate. Ci ha stupito moltissimo il fatto di ritrovare tutte le tecnologie citate nell’introduzione anche nelle ventole di dimensione ridotta come le NF-A4. Siamo decisamente soddisfatti sia dalle prestazioni in termini di efficienza/rumore, sia dal bundle che dai prezzi decisamente in linea con quelli di altri produttori ma assolutamente superiori in termini di caratteristiche e prestazioni. Attribuiamo a tutta la NF-A Series il premio Gold Award per l’innovazione tecnologica e la cura dei particolari che L’azienda ha dimostrato in questa serie di ventole super-efficienti.
Test verdict: "Ventole per ogni tipo di esigenza. Noctua con la serie NF-A ha pensato proprio a tutti e a tutto proponendo prodotti di altissima qualità e tecnologia mantenendo un ottimo rapporto qualità/prezzo. Decisamente apprezzata la cura dei dettagli e del bundle che rendoni queste ventole il TOP DI GAMMA sul mercato." (Davide Torno, QWERTYmag.it)
17.11.2014 // HWready.it
test.gif

NF-A14 PWM Review

Sleeving dei cavi e dotazione bundle sempre fantastico, l’azienda Austriaca non si smentisce mai da questo punto di vista. Facile il montaggio con i gommini rapidi in dotazione e l’utilizzo con le prolunghe e gli adattatori presenti, inoltre tutte le ventole sono munite dei gommini anti-vibrazione a gli angoli. Le ventole da 140mm e 150mm sono più efficienti e silenziose delle comuni e quasi sempre usate da 120mm, infatti le Noctua in esame di comportano benissimo! Perfette, silenziose ed adatte ad ogni utilizzo. Le versioni PWM riescono a combinare in modo fantastico silenziosità e potenza dissipante, fanno il loro dovere in ogni situazione di utilizzo: nei case per creare il flusso d’aria, sul dissipatore per CPU e sui radiatori dell’impianto a liquido, insomma versatili ed affidabili.
Test verdict: "Qualità dei materiali superba (come sempre), Noctua rimane un punto di riferimento per le ventole. Abbiamo provato 4 modelli, 3 da 140mm ed 1 da 150mm, tutti fantastici" (Santoro Luigi, HWready.it)
02.09.2014 // ActualidadHardware.com
test.gif

NF-A14 PWM Review

Tras probar las serie NF-A de 140mm podemos decir que estamos ante cuatro grandes ventiladores, en general silenciosos y con un buen caudal aire. De la serie NF-A14 tenemos el modelo FLX que es silencioso y mueve un buen caudal de aire. El modelo ULN es el más silencioso de los analizados, es inaudible aunque su caudal no es excesivamente alto pero suficiente para refrigerar nuestra torre. El modelo PWM es silencioso eso si, a máximas revoluciones empieza a sonar algo más, moviendo un gran caudal de aire. De la serie NF-A15 el modelo PWM es el que más caudal mueve de los cuatro modelos analizados, a máximas rpm ya suena algo pero es normal debido al gran flujo de aire que genera. Concluimos que son ventiladores muy similares, cuyas diferencias son la velocidad de rotación. El modelo ULN está especialmente diseñado como ventilador auxiliar por su baja sonoridad. El modelo NF-A14 FLX destaca por ser silencioso y tener un buen rendimiento, pudiendo regularle las rpm mediante los adaptadores que incluye. El modelo NF-A14 PWM destaca por ofrecer un gran rendimiento regulando las rpm forma automática. Y el modelo NF-A15 PWN que tiene la particularidad de que dispone agujeros de montaje de 120mm, destacando su gran caudal de aire y sonoridad.
Test verdict: "No hace falta decir nada más, que hemos analizados unos grandes ventiladores muy versátiles, silenciosos y con un gran rendimiento, así que no podemos dejar de recomendarlos." (Jose Maria Martinez Perdigones, ActualidadHardware.com)
01.06.2014 // Dark Tech Reviews
test.gif

NF-A14 PWM Review

تم تجربة المراوح باستخدام كل محول مرفق لتغيير السرعات تم تثبيت درجة حرارة الغرفة على درجة 29 درجة الحرارة التي تم تسجيلها في الخمول بعد وضع الجهاز على سطح المكتب دون تشغيل برامج وتركة لمدة 15 دقيقة أما فى حالة الضغط تم الضغط بأستخدام برنامج OCCT علي المعالج المستخدم PHENOM II X2 555Be @3.7 وباستخدام فولتية مقدارها 1.5v المشتت المستخدم هو CNPS10X بعد قراءتك لنتائج الاختبارات لا تنسى قراء التعليق الختامي لتجد الملاحظات الخاصة بالأداء أيضاً ستجد معدل الدوران الفعلى أثناء الأختبارات موضح لكل مروحة
Test verdict: "لن أطيل عليكم هذه تعتبر ثاني مراجعة لنا مع مراوح شركة Noctua والتي أثبت شيئاً واحداً أن الجودة والأداء والأزعاج أحد اهم عوامل نجاح الشركة فمراوح NF-A14 PWM ظهرت قوتها في برنامج الأختبار صوت المراوح لا يُذكر علي سرعة 1500 ومع سرعة 1200 لن تسمع صوت لها تفوقت علي كافة مراوح ذات القياس 120 مم" (Ahmed Mohamed, Dark Tech Reviews)
01.05.2014 // Conseil Config
test.gif

NF-A14 PWM Review

Comme d'habitude chez Noctua les nuisances sonores sont très basses, ils sont tous inaudibles à 5v et se font entendre à 12v, à part pour le ULN qui lui reste quasiment inaudible même à fond! Les ventilateurs produisent tous un son grave (comme tous ceux de la marque) qui n'est pas gênant et les moteurs sont dépourvus de bruits parasites, un très bon point.
Test verdict: "Nous voici arrivé au terme de ce test, que dire de ces Noctua NF-A14 ? On voit bien qu'ils sont de la même famille que les NF-S12A et continuent dans l'excellence, que ce soit au niveau des performances que dans le bundle en passant par un SAV au top et 6 ans de garantie. Vous ne pouvez pas vous tromper en optant pour un de ces ventilateurs" (Christian Marchini, Conseil Config)
28.11.2013 // PCElite.pl
test.gif

NF-A14 PWM Review

Wentylator jest potwornie mocny. Pod tym względem uplasował się na drugiej pozycji w teście. Osiągnął wynik 39 na 40 możliwych w teście wydajności. Łożyska nic nie słychać. Wentylator trzyma klasę. Piaskowy kolor świetnie do niego pasuje.
Test verdict: "Noctua NF-A14 PWM jest wentylatorem bezkonkurencyjnym, jeśli chodzi o stosunek poziomu dźwięku do wydajności, oraz wydajności do poziomu pobory prądu." (Arkadiusz Byś, PCElite.pl)
25.11.2013 // PCAXE.com
test.gif

NF-A14 PWM Review

Na prvi pogled ne vidimo ništa specijalno, ali ako iz dobijenih temperatura jezgra izračunamo proseke, stvari će biti jasnije. Kuler sa ventilatorom koji je radio na 1200 obrtaja je ostvario maksimalnu temperaturu od 83,5°C. Kada je hladnjak bio opremljen sa bržim ventilatorom na 1500 obrtaja, maksimalna zabeležena temperatura je bila 80,5°C. Dakle, cela tri stepena, što je primetna razlika u oku entuzijasta. Sad Vam je valjda jasnije zašto je NH-D14 izgubio od NH-14S. Zato što tih 'par obrtaja viška' znače puno za konačan rezultat.
Test verdict: "PWM verzija od ovog 140mm ventilatora će naravno dobiti tradicionalnu 'PCAXE Diamond' nagradu. Noctua-u ne vredi da hvalimo išta posebno, oni koji razumeju njihovu ideologiju, namenu i kvalitet, oni će prihvatiti ovaj proizvod kao i svaki drugi od Noctua-e." (Atila Gobor, PCAXE.com)
14.09.2013 // 3dGameMan.com
test.gif

NF-A14 PWM Review

The Noctua NF-A14 PWM Fan is a premium quiet 140mm fan that's perfect for a case, cooler or radiator. Since it sports a SSO2 bearing, flow channels, stepped inlet design and inner surface microstructures it's quiet, performs well and has a long lifespan.
Test verdict: "You can't go wrong with this fan!" (Rodney Reynolds, 3dGameMan.com)
04.09.2013 // TheOverclockHole.it
test.gif

NF-A14 PWM Review

Abbiamo comunque visionato la cura con cui il prodotto è realizzato e la tecnologia effettiva presente nel prodotto che si rispecchia anche nelle prestazioni. Abbiamo osservato il comportamento di una ventola da 1500rpm che quasi tiene testa a una da 2000giri producendo un rumore minimo e un flusso d'aria sostenuto.
Test verdict: "Siamo giunti al termine di questa recensione e crediamo che qualsiasi lettore attento non abbia dubbi sulle capacità prestazionali e sull'affinamento tecnico di questo eccellente prodotto Noctua." (Eric Costamagna, TheOverclockHole.it)

Installation Manual (PDF)

Information Sheet (PDF)

I get a CPU fan error using my Noctua PWM fan, is it faulty?

Noctua PWM fans feature a minimum speed of 300rpm to allow for ultra quiet operation when your CPU is at idle state and doesn’t require higher cooling performance. Some mainboards display error messages such as “CPU fan error” during the booting process when the fan speed is below a certain level. If you get such error messages using your Noctua PWM fan and if such options are available in your BIOS, please either adjust the minimum fan speed monitoring limit to 200rpm or increase the minimum PWM duty cycle. If your BIOS doesn’t offer these options, please disable CPU fan errors. For detailed information on BIOS fan settings, please consult your mainoard’s manual or contact your mainboard manufacturer.

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).

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 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).

The supplied y-cable is missing a wire at one of the two connectors, is it faulty?

No. As mainboards can process only one rpm-signal per fan header, it would cause problems if the cable transmitted rpm-signals of both fans. For this reason, one of the two connectors does not have an rpm wire and only the fan on the other connector will transmit an rpm signal. Automatic speed control of both fans will work independent from the second fan’s rpm signal.

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.

Do you have a question concerning one of our products? Please use this form to pose a question!