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Digne héritier de la célèbre série NH-U Noctua, primée ou recommandée à plus de mille reprises par la presse internationale spécialisée web et papier, le NH-U14S s’impose comme un ventirad de référence parmi les modèles 140mm haut de gamme simple tour. La version TR4-SP3, spécialement conçue pour le plateforme TR4/SP3 d’AMD (Ryzen Threadripper / Epyc), bénéficie d’une surface de contact plus grande et se voit dotée de la toute dernière version du système de fixation SecuFirm2™ pour socket TR4/SP3. Equipé du célèbre ventilateur silencieux 140mm NF-A15 PWM, de la célèbre pâte thermique NT-H1 Noctua ainsi que d’une garantie constructeur complète de 6 ans, le NH-U14S TR4-SP3 s’impose comme une solution définitivement haut de gamme combinant performance et qualités acoustiques pour les passionnés possédant un système TR4/SP3.

Il est important de rappeler que le NH-U14S TR4-SP3 est un modèle exclusivement dédié au socket AMD TR4/SP3. Compte tenu de sa base spécifique plus imposante, il ne peut être utilisé avec d’autres sockets et n’est pas compatible avec les kits de montage standard Noctua.
Détails
La gamme NH-U : une vraie success story

La gamme NH-U : une vraie success story

Le NH-U14S est le premier modèle 140mm de la célèbre gamme Noctua NH-U. Lancée en 2005, cette gamme de dissipateurs pour CPU est devenue la référence haut de gamme incontestée ; elle s'est distinguée par plus de 400 récompenses et recommandations décernées par la Presse internationale spécialisée papier et Internet.
Version spécialement conçue pour le TR4/SP3 (Ryzen Threadripper / Epyc)

Version spécialement conçue pour le TR4/SP3 (Ryzen Threadripper / Epyc)

La surface de contact en cuivre de la version TR4/SP3 (dimension : 70x56mm) est plus de deux fois supérieure à celle des modèles traditionnels. Conçu pour tenir compte des dissipateurs intégrés (IHS) des processeurs pour les systèmes AMD TR4/SP3, ce design spécifique permet d’optimiser la dissipation du flux de chaleur issu du CPU et circulant depuis la base et en direction des caloducs puis des ailettes du radiateur.
Un format 140mm pour une performance optimale

Un format 140mm pour une performance optimale

Avec 6 caloducs et une surface de dissipation de plus de 6000cm² associés au ventilateur 140mm imposant NF-A15, le NH-U14S TR4-SP3 délivre un niveau de refroidissement supérieur qui le rend idéal pour la plupart des configurations TR4/SP3 haut de gamme.
NF-A15 : le ventilateur premium 140mm

NF-A15 : le ventilateur premium 140mm

Répondant aux exigences du standard Noctua AAO et bénéficiant d’un design aérodynamique sophistiqué (dont les Flow Acceleration Channels), le NF-A15 s’est rapidement construit une solide réputation pour devenir un des meilleurs ventilateurs 140mm pour ventirads du marché.
Compatibilité PWM et Adaptateur Faible Bruit

Compatibilité PWM et Adaptateur Faible Bruit

Le ventilateur 140mm NF-A15, livré avec le NH-U14S, peut bénéficier d'un pilotage automatique de la vitesse PWM via la carte mère. De plus, et pour réduire encore les émissions sonores, la vitesse maximale peut être plafonnée à 1200rpm (au lieu de 1500rpm) grâce à l'utilisation de l'adaptateur faible bruit (L.N.A.).
Silentblocs anti-vibration et agrafes pour un second NF-F12

Silentblocs anti-vibration et agrafes pour un second NF-F12

Pour ceux qui souhaitent améliorer encore le niveau de performance, l'ajout d'un second ventilateur NF-A15 permettra de créer une configuration en « push/pull » (aspiration/extraction). A cette fin, le NH-U14S est livré avec un jeu de silentblocs anti-vibration sur-mesure qui permettent de décaler le ventilateur arrière de 5mm afin d'améliorer le confort acoustique en mode dual (double ventilateur).*
Un système de fixation SecuFirm2™ pour TR4/SP3

Un système de fixation SecuFirm2™ pour TR4/SP3

Les systèmes de fixation Noctua SecuFirm2™ sont devenus des références incontestées au niveau de la qualité, de la fiabilité et de la simplicité de montage. La version TR4-SP3 a bénéficié d’une conception totalement spécifique à ce nouveau socket et s’avère particulièrement facile à installer : positionnez le ventirad, vissez les quatre vis à ressort et c’est tout !
Installation orientable pour une zone PCIe plus accessible

Installation orientable pour une zone PCIe plus accessible

Afin de garantir une compatibilité optimale sur les configurations multi-GPU (SLI ou CrossFire), les barres de fixation du système SecuFirm2™ pour TR4/SP3 permet de décaler le ventirad de 3 à 6mm en direction de la partie supérieure de la carte mère, offrant ainsi plus de place au slot PCIe du haut.
Pâte thermique NT-H1

Pâte thermique NT-H1

Solution TIM haut de gamme plébiscitée et récompensée à plus de 100 reprises dans le monde par des journalistes spécialisés, la NT-H1 de Noctua offre une résistance thermique très faible, une fiabilité et une facilité d'application étonnantes.
Garantie Fabricant de 6 ans

Garantie Fabricant de 6 ans

La réputation des ventilateurs Noctua n'est plus à faire tant pour leur qualité que pour leur étonnante longévité. Comme pour tous les modèles de ventilateurs Noctua, le NF-A15 bénéficie d'un MTTF de plus de 150 000 heures de tests et la totalité des éléments du package NH-U14S bénéficie d'une garantie fabricant totale de 6 ans.
NH-U14S TR4-SP3
Général
Notes and warnings
Il est important de rappeler que le NH-U14S TR4-SP3 est un modèle exclusivement dédié au socket AMD TR4/SP3. Compte tenu de sa base spécifique plus imposante, il ne peut être utilisé avec d’autres sockets et n’est pas compatible avec les kits de montage standard Noctua.
Spécifications radiateurrn
Hauteur (ventilateur non compris)
165 mm
Largeur (ventilateur non compris)
150 mm
Profondeur (ventilateur non compris)
52 mm
Hauteur (ventilateur compris)
165 mm
Largeur (ventilateur compris)
150 mm
Profondeur (ventilateur compris)
78 mm
Poids (ventilateur non compris)
865 g
Poids (ventilateur/s compris)
1030 g
Matériau
cuivre (fond et caloducs), aluminium (plaques de refroidissement), soudé & nickelé
TDP max.
voir guide TDP
Dimensions du ventilateur
140x150x25 (avec fixation 120mm), 140x140x25 (avec fixation 120mm), 120x120x25
Volume de livraison
  • Ventilateur haut de gamme NF-A15 PWM
  • Adaptateur Faible Bruit (L.N.A.)
  • Pâte thermique NT-H1
  • Système de fixation SecuFirm2™ TR4/SP3
  • Silentblocs anti-vibration et agrafes pour un second NF-A15
  • Noctua Case-Badge en métal
Garantie
6 ans
Spécifications ventilateur
Modèle
Noctua NF-A15 PWM
Type roulements
Vitesse de rotation max. (+/-10%)
1500 RPM
Vitesse de rotation avec L.N.A. max. (+/-10%)
1200 RPM
Vitesse de rotation min. (PWM, +/-20%)
300 RPM
Niveau sonore max.
24,6 dB(A)
Niveau sonore avec L.N.A. max.
19,2 dB(A)
Puissance consommée
1,56 W
Tension
12 V
MTTF
> 150.000 h
NH-U14S TR4-SP3
16.08.2018 // Tom's Hardware
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NH-U14S TR4-SP3 test

Like its smaller sibling, the NH-U12S TR4-SP3, the Noctua NH-U14S TR4-SP3 provides whisper-quiet cooling with big league thermal performance – the kind of overclocked Threadripper performance that sneaks into quality 360 all-in-one cooling performance. Armed with six nickel-plated copper heatpipes and a NF-A15 140mm PWM fan, the AMD-friendly NH-U14S TR4-SP3 is a silent thermal assassin. For Threadripper air cooling, this cooler checks all the boxes for enthusiasts and overclockers alike.
Verdict du test: "For those looking for a high-quality, high-performing, low-noise air cooling solution for AMD Threadripper, the Noctua NH-U14S TR4-SP3 makes the decision easy." (Garrett Carver, Tom's Hardware)
28.02.2018 // Le Comptoir du Hardware
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NH-U14S TR4-SP3 test

Inutile de régler votre poste, ceci n'est pas une hallucination. La grosse surprise nous vient d'un système de refroidissement par air de chez Noctua, qui se positionne comme l'un des plus endurant sur notre Threadripper 1920X. Le NH-U14S TR4-SP3 survole le débat en aircooling et enterre quasiment tout le panel de kits AIO. [...] Le candidat à disposer du meilleur ratio performances/bruit est le NH-U14S TR4-SP3 de Noctua, encore lui. Il se fera largement entendre lorsqu'il sera sollicité au maximum de ses capacités, mais reste toutefois dans une tranche raisonnable.
Verdict du test: "Le NH-U14S TR4-SP3 remporte notre coup de coeur, offrant le meilleur ratio performances/nuisances/prix du panel. Si l'overclocking ne vous intéresse pas, le NH-U12S TR4-SP3 est parfaitement adapté à l'usage." (Thierry Comtesse, Le Comptoir du Hardware)
04.10.2017 // LegitReviews.com
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NH-U14S TR4-SP3 test

The results from this benchmark were rather shocking as the Thermaltake Floe Triple Riing RGB 360 TT Premium Edition ($199.99 shipped) AIO CPU liquid cooler didn’t blow the Noctua coolers out of the water. The Thermaltake Floe Triple Riing RGB 360 had the lowest idle temperature by 1C, but the load temps were nearly 2C higher than the Noctua NH-U14S. These Noctua air coolers do a pretty good job!
Verdict du test: "It is shocking how well these three high-end heatsinks from Noctua handle AMD’s TR4 and SP3 sockets for their latest Ryzen Threadripper (X399) and EPYC platforms." (Nathan Kirsch, LegitReviews.com)
21.08.2017 // ComputerBase.de
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NH-U14S TR4-SP3 test

Bei dem Temperaturen zeigt sich die All-in-One-Wasserkühlung nur für wenige Minuten überlegen, denn das Wasser zu erhitzen braucht seine Zeit. Nach 30 Minuten Last mit Prime95 steht ein Patt mit dem NH-U14S zu Papier. So lange die AiO braucht um auf Touren zu kommen, so lange braucht sie im Anschluss auch wieder um ruhiger zu werden: Ein Luftkühler hat nach wenigen Sekunden im Leerlauf die Drehzahl bereits wieder abgesenkt, weil die CPU nur noch minimale Abwärme erzeugt, bei der AiO dauert das länger.
Verdict du test: "Als potentiell erste erhältliche Luftkühler für AMDs neuer Threadripper-Plattform machen Noctua NH-U14S, -U12S und -U9 für Sockel TR4 eine sehr gute Figur. Das Topmodell NH-U14S schlägt bei der Temperatur sogar eine 200 US-Dollar teure AiO-Wasserkühlung von Thermaltake mit großem 360er-Radiator." (Volker Rißka, ComputerBase.de)
12.11.2018 // WhatNext.pl
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NH-U14S TR4-SP3 test

Chłodzenie pozytywnie zaskoczyło mnie w testach. Jest to zdecydowanie najwydajniejsza propozycja i świetnie poradzi sobie nawet z podkręconym procesorem... Spokojnie poradzi sobie z CPU po podkręceniu oraz zapewni jego niskie temperatury.
Verdict du test: "Chłodzenie prezentuje też znakomitą jakość wykonania, dobre dodatki czy banalny montaż. Wśród chłodzeń pod Threadrippera jest ono moim faworytem." (Michał Andruszkiewicz, WhatNext.pl)
18.06.2018 // FunkyKit.com
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NH-U14S TR4-SP3 test

I’ve seen much larger coolers which were rated at lower TDP than the NH-U14S TR4-SP3 so I’m glad to see there is no need to install dual-tower cooler to handle AMD Threadripper and still receive top performance. This design also helps with the installation of really tall memory modules and is not so heavy.
Verdict du test: "Noctua NH-U14S TR4-SP3 is the cooler for the most demanding users. You won’t find anything better that isn’t expensive water cooling kit. The NH-U14S is really quiet and well-performing cooler which combines all the features you may need and for daily challenges." (Bartosz Waluk, FunkyKit.com)
11.05.2018 // DDWorld.cz
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NH-U14S TR4-SP3 test

Až na trochu dost těsné osazení chladiče v kombinaci s grafickou kartou v prvním PCIe slotu na základní desce, nemáme co vytknout. Noctua NH-U14S TR4-SP3 je excelentní chladič. Trochu se divím, že NOCTUA neudělala v TR4 verzi i obří D15, ale asi usoudila, že U14S má dostatek výkonu a musím souhlasit. Pro ty, kteří neplánují vůbec taktovat, je tento chladič naprosto vynikající a dá se říci že jasnou volbou. Je výkonný a tichý, běžná AiO nedokáží být lepší.
Verdict du test: "Noctua NH-U14S TR4-SP3 je excelentní chladič." (Jan Stach, DDWorld.cz)
05.12.2017 // Guru3D.com
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NH-U14S TR4-SP3 test

You probably will already have noticed it, but the U12S and U14S managed to cool better than the Kraken X40 LCS cooler, especially the U14S crunches down the cooling numbers. That's impressive, but also wasn't a very likely thing to happen. Here's my thought on that, it's the full cover heat block on the Noctua coolers that draw every Watt of heat they can deal with until they run out of capacity. Even tweaked with 16 cores at 100% stress / 1.38V the U14S managed to stay four degrees cooler compared to that Kraken X40 LCS unit, which is a lot in the cooling arena. Now of course, once you go pro with liquid cooling and bigger radiators, the dynamics will shift. But none-the-less this was very impressive to see.
Verdict du test: "So there you have it, overall we feel the Noctua U12S and NH-U14S coolers are very nice, the looks are a matter of taste, the performance winner, however, is the NH-U14S TR4/SP3." (Hilbert Hagedoorn, Guru3D.com)
06.10.2017 // Hardwaremax.net
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NH-U14S TR4-SP3 test

Wie man anhand der Messungen klar erkennen kann ist Fläche Trumpf und dementsprechend reihen sich die Kühler auch ein. Während bei unserer getesteten Mindestdrehzahl von 600 Umdrehungen alle Kühler in das Limit laufen, sehen die Werte ab 900 Umdrehungen zumindest schon einmal für den Noctua NH-U14S sehr gut aus. Ab 1200 Umdrehungen kommt auch der NH-U12S in Fahrt und kühlt den Prozessor adäquat ohne in das Limit zu laufen. Der Noctua NH-U9 konnte bei unserem Testsetup erst auf maximaler Drehzahl den Threadripper auf Temperatur halten.
Verdict du test: "Der U14S ist im direkten Vergleich der mit Abstand leistungsfähigste Kühler. Er schafft es dabei auch den derzeit stromhungrigsten AMD Desktopprozessor bei 3850MHz auf Temperatur zu halten. Hierbei verbrauchte das Testsystem ca. 365 Watt an Strom. Ein Wert der diverse Gamingrechner verblassen lässt. Sollte also der Platz vorhanden sein, trifft man mit dem Noctua NH-U14S die derzeit beste Entscheidung. Durch seinen tadellosen Auftritt hat sich der U14S auch unseren Enthusiast Award verdient." (Markus Lakner, Hardwaremax.net)
30.09.2017 // Hardwareluxx.de
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NH-U14S TR4-SP3 test

Unter den Luftkühlern ist die Sache klar: Das größte und teuerste ist auch das leistungsstärkste Modell. Noctuas NH-U14S TR4-SP3 setzt sich klar an die Spitze und bietet auch jenseits des Basistakts noch ordentlich Reserven. Der Luftkühler ist dabei wie seine kleineren und leistungsschwächeren Modelle bestens verarbeitet. Alle drei können angenehm leise betrieben werden und sind denkbar einfach zu montieren.
Verdict du test: "Weil Noctuas NH-U14S TR4-SP3 insgesamt die überzeugendste Vorstellung unter den Luftkühlern abliefert, zeichnen wir ihn mit unserem Excellent-Hardware-Award aus." (Philipp Moosdorf, Hardwareluxx.de)

NA-FC1

  • Contrôleur de vitesse compact, ultra flexible pour ventilateurs PWM 4 broches
NH-U14S TR4-SP3

NA-SEC1

  • Câbles-rallonges 4-broches
NH-U14S TR4-SP3

Instructions de montage (PDF)

Feuille d'informations (PDF)

FAQs

Pourquoi le fond du refroidisseur Noctua n'est-il pas brillanté et poli ?

Can I upgrade my existing Noctua cooler to socket TR4 or SP3?

How should I clean my Noctua cooler?

Which sockets are supported or can be supported using upgrade kits?

What Thermal Design Power (TDP) is this cooler recommended for and how much Watt (W) of heat can it dissipate?

Can I install a Noctua cooler in my system from Acer, Dell, HP or Lenovo?

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

My case supports CPU coolers of up to XXXmm height, which model should I choose?

I have difficulties installing the cooler, can you help?

How much torque should be applied when tightening the screws of a Noctua CPU cooler?

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

How can I determine if the motherboard’s UEFI BIOS is overclocking my processor by default and deactivate this automatic overclocking?

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

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

How big is the NH-U14S and how much clearance does it provide for RAM and chipset coolers?

Should I take the cooler off before transporting my system?

Does the NF-A15 PWM that comes with Noctua coolers run at a different speed (1500rpm) than the retail model (1200rpm)?

After some time of prolonged full load, the CPU clock starts to drop off to very low values intermittently, is the cooler insufficient?

Even with a high-end cooler, the performance is not what I would expect, what can I do?

Which Noctua coolers are compatible with Ryzen Threadripper 2?

How can I check whether my case is wide/high enough for the cooler?

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

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

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

I’ve used all the NT-H1 thermal compound that came with the cooler, can you send me more?

Is it possible to use the cooler with vertical graphic cards?

Pourquoi le fond du refroidisseur Noctua n'est-il pas brillanté et poli ?

Etant donné que la plupart des enthousiastes d'ordinateurs personnels utilise encore aujourd'hui des pâtes thermiques à forte viscosité, le fond du refroidisseur Noctua a été optimisé pour l'utilisation de ces pâtes. Les fines rainures (micro-grooves) dans la surface du fond du refroidisseur Noctua permettent d'appliquer les pâtes thermiques à forte viscosité de manière homogène en une couche ultramince et sans aucune inclusion d'air n'existe entre le refroidisseur et la processeur central. Le risque d'une application non homogène serait beaucoup plus élevé si la surface était brillantée et polie. Des couches de pâte thermique trop épaisses et des inclusions d'air altérant sensiblement la transmission calorifique, les micro-rainures sont d'une importance décisive pour la performance de refroidissement totale du refroidisseur Noctua en cas d'utilisation des pâtes thermiques courantes à forte viscosité.

Can I upgrade my existing Noctua cooler to socket TR4 or SP3?

Unfortunately, it is not possible to upgrade existing Noctua heatsinks to support the AMD TR4 and SP3 sockets for Ryzen Threadripper (X399) and Epyc CPUs. TR4/SP3 CPUs have much bigger heatspreaders (as compared to e.g. LGA2066 or AM4 processors) and the contact surfaces of standard Noctua heatsinks would cover only about half of these heatspreaders, which would result in insufficient cooling performance. On top of that, the heatpipes of bigger cooler models like the NH-D15 or NH-D15S would completely block the RAM slots on many TR4/SP3 motherboards. For this reason, Noctua has introduced the new NH-U14S TR4-SP3, NH-U12S TR4-SP3 and NH-U9 TR4-SP3 cooler models that feature bigger contact surfaces and have been tailored to fit TR4 and SP3 systems. Please choose these models for AMD Ryzen Threadripper and Epyc systems.

How should I clean my Noctua cooler?

Dust: Fans and heatsinks inside computer cases tend to accumulate dust over longer periods of usage. In order to maintain maximum performance, please clean your fan and heatsink regularly. For cleaning, please first remove the fan from the heatsink and clean it 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. Please also 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. Before reinstalling the fan, clean the heatsink itself with a duster or vacuum cleaner. Do not use water to clean the cooler. Finally put the fan back on and connect it to your motherboard fan header or fan controller.
Thermal paste residues: Whenever you take off the heatsink from the CPU, we recommend to clean the CPU as well as the base of the cooler before re-applying thermal paste and re-installing the cooler. You can either just wipe the base and the CPU clean with a dry, lint-free tissue or, for more thorough cleaning, use a lint-free tissue moistened with either a mild solution of washing-up liquid or isopropyl alcohol. Do not put the cooler or CPU under running water. Note that both the base of the heatsink and the CPU should be dry, free from residues of thermal compound and free from grease before re-applying thermal paste and re-installing the cooler.

Which sockets are supported or can be supported using upgrade kits?

Please refer to our socket compatibility chart.

What Thermal Design Power (TDP) is this cooler recommended for and how much Watt (W) of heat can it dissipate?

Please refer to our TDP guide for information on maximum recommended TDP and heat dissipation.

Can I install a Noctua cooler in my system from Acer, Dell, HP or Lenovo?

Systems from Acer, Apple, Dell, HP, Lenovo or other major brands often use motherboards which differ slightly from the specifications issued by Intel and AMD. While those changes are usually subtle, they can lead to compatibility issues with coolers that were built to comply with these specifications.

Even in case the cooler is mechanically compatible and can be installed, other issues can occur, e.g. proprietary fan connectors, BIOS errors due to a low fan speed, shutdowns, etc. Some of these problems can be avoided with some technical knowledge, but especially BIOS related issues can often not be resolved.

Due to the large number of possible issues that cannot be resolved with different mounting parts alone, Noctua does not officially support systems from Acer, Apple, Dell, HP, Lenovo or other major brands.

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 600 or 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 in the BIOS 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, by using 3rd party tools like IPMItool or IPMIutil, or by requesting a modified BIOS file from Supermicro, which takes the minimum fan speed of Noctua fans into account (charges might apply). Please note that any modifications performed with 3rd party tools are done at your own risk and that Noctua can not be held responsible for any possible issues.

My case supports CPU coolers of up to XXXmm height, which model should I choose?

Please refer to our TDP guide in order to select the cooler that offers the best cooling performance at a given height.

I have difficulties installing the cooler, can you help?

Please refer to the installation manual and our video installation guides for detailed instructions on how to install the cooler.

How much torque should be applied when tightening the screws of a Noctua CPU cooler?

All screws should be tightened gently until they stop without using excessive force. Please do not exceed the following values for maximum tightening torque:
Screw typeMax. torque
NM-SSC1 screws for fixing the fastening brackets to the base of the heatsink0.5 Nm
NM-ITS1 thumb screws for fixing Intel mounting bars0.5 Nm
NM-ALS1 screws for fixing AMD mounting bars0.6 Nm
Spring-loaded screws for fixing the heatsink to the mounting bars0.6 Nm

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.

How can I determine if the motherboard’s UEFI BIOS is overclocking my processor by default and deactivate this automatic overclocking?

Most motherboard vendors allow their overclocking-enabled products (e.g. those with Intels X- or Z-series chipsets) to run the processor at increased clock speeds by default, without requiring any user action at all. Since TDP (Thermal Design Power) limits are usually also disabled by default, this leads to the CPU exceeding the rated TDP to a varying degree, depending on the used applications and their workloads. Due to the increased heat output of the CPU, you may see higher CPU temperatures than expected.

In order to find out if your motherboard is overclocking your processor by default, please enter the UEFI BIOS and select the “advanced” or “overclocking” menu. There you should be able to find options such as “MultiCore Enhancement” (options: enabled/disabled), “CPU Ratio Apply Mode” (options: all/per core) or similar. To disable the automatic overclocking, adjust the settings either to “disabled” or “per core” and make sure that the individual multipliers match the original specifications.

In doubt, please contact your motherboard vendor for detailed instructions on how to disable this feature.

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.

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.

How big is the NH-U14S and how much clearance does it provide for RAM and chipset coolers?

Please refer to the following drawing for the exact measurements and clearance for RAM and chipset coolers:

U14S

Should I take the cooler off before transporting my system?

As it is not possible to reliably calculate or control the forces that act upon a system during transport (e.g. in shipping), we generally recommend, for safety reasons, taking the cooler off. Noctua cannot be held responsible for any damage that may arise due to excessive stress during transport if you keep the heatsink installed.

Does the NF-A15 PWM that comes with Noctua coolers run at a different speed (1500rpm) than the retail model (1200rpm)?

Yes, the NF-A15 PWM bundled with our heatsinks is specified to run at 1500rpm (see cooler specifications for details) and the retail model is specified to run at 1200rpm (see fan specifications for details). The 1200rpm retail model is ideal for setting up push/pull configurations in combination with the coolers’ 1500rpm stock fan because the combination of the 1500 and 1200rpm models provides a better balance of performance and noise than the combination of two 1500rpm versions. On dual-tower coolers such as the NH-D15S, we recommend to run the 1500rpm version in the center and the 1200rpm version on the front. On single-tower coolers such as the NH-U14S, we recommend to run the 1500rpm version on the front and the 1200rpm version on the back of the cooler. The NA-YC1 y-cable supplied with the retail fan can be used in order to control both fans via one PWM fan header. In this case, both fans will scale individually according to the PWM duty cycle supplied by the motherboard, e.g. they will run at ~1500/1200 respectively at 100% duty cycle, ~750/600rpm at 50% duty cycle, etc. Both at 100% and lower speeds, the speed difference between the fans reduces resonance phenomena and thus helps to achieve the best balance of performance and noise.

After some time of prolonged full load, the CPU clock starts to drop off to very low values intermittently, is the cooler insufficient?

This behavior is usually due to overheating of the voltage regulation module (VRM), which provides the CPU with power. To stay within a defined temperature threshold (defined by the component and motherboard vendor) and to cool down the VRM, the clock speed of the CPU might be reduced to very low values. When the temperature of the VRM is back within a safe range, the CPU clocks will be increased back to the expected values until the temperature limit is reached again.
Internal tests at Noctua have shown that not all motherboards on the market are able to power the 250W models at prolonged full CPU load without the VRM running into thermal throttling. In case you experience the behavior described above please, check the VRM temperature (e.g. via HWinfo) and provide additional cooling to this area. In doubt, please contact your motherboard manufacturer for further information.

Even with a high-end cooler, the performance is not what I would expect, what can I do?

First of all, please note that results in reviews might show different results as many tests are conducted in open test bench configurations outside a chassis, which allows a better supply of fresh air and thus allows the coolers reach lower temperatures than in a real-world setup inside a chassis.
Secondly, processors emitting heat-loads of 180-250W or even more (with Turbo Boost) create more challenges for case ventilation than lower power mainstream CPUs as it is very difficult to remove so much heat from the chassis. For best performance, it is crucial that sufficient amounts of fresh air can enter the chassis and that warm air leaves the chassis as fast as possible.
Internal testing at Noctua has shown that many PC cases are rather restrictive when it comes to air intake and exhaust due to dampening materials, doors, covers or a rather closed design approach in general. Increasing the number of system fans can help to a certain degree but will not provide much improvement if intakes and outlets are too resistive. The best cooling results are to be expected from cases which use a rather open approach (e.g. mesh walls and intakes). Unfortunately, Noctua cannot provide detailed recommendations for individual system configurations as there are too many options and variables available to give general recommendations. Please refer to general case cooling guidelines such as this one for information how to setup the airflow inside your case.

Which Noctua coolers are compatible with Ryzen Threadripper 2?

Please see our TDP guidelines for details.

How can I check whether my case is wide/high enough for the cooler?

Most case manufacturers provide specifications for maximum CPU cooler height/clearance. Please refer to these specifications in order to verify that the cooler will fit the case. If no specifications are available, please contact the case manufactuer or measure the distance from the motherboard tray to the side panel (tower cases) or top panel (desktop cases). If this distance is bigger than the height of the cooler + 15mm (mainboard spacers + mainboard + CPU), the height/width of your case should be sufficient.

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 independently from the second fan’s rpm signal.

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.

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.

I’ve used all the NT-H1 thermal compound that came with the cooler, can you send me more?

Please kindly note that the NT-H1 thermal compound supplied with our coolers is a consumable item so our manufacturer’s warranty does not include providing additional thermal compound. You can purchase NT-H1 from our resellers.

Is it possible to use the cooler with vertical graphic cards?

Depending on the chassis, card and motherboard being used, installing PCIe cards in a vertical position using riser cards may cause compatibility issues with CPU coolers. Whether there will be a problem or not depends on the exact position of the card (which is determined by the PC case and/or optional vertical GPU holder bracket), the width of the card as well as the position of the CPU socket on the motherboard. In order to verify that there is sufficient space for the cooler, please measure the distance between the centre of the CPU socket and the top of the PCI card in order to make sure that the cooler fits.

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