heading

La série DX des ventirads Noctua est devenue un choix incontournable pour ceux qui recherchent un refroidissement très performant et silencieux pour les CPU Intel Xéon. Le dernier modèle i4 est compatible avec les plateformes - à base de Xéon - LGA2011 (Square ILM et Narrow ILM), LGA1356 et LGA1366. Le modèle 12cm (NH-U12DX i4) est équipé du ventilateur NF-F12 Focused Flow™, plusieurs fois récompensé et dont la vitesse peut être régulée via un pilotage automatique PWM. Grâce à son design étroit, le NH-U12DX i4 offre un accès facilité aux barrettes de mémoire et bénéficie d’une meilleure compatibilité avec les modules élevés. Complété du système de fixation haut de gamme multi-socket SecuFirm2™, de la pâte thermique haute performance NT-H1, le NH-U12DX i4 constitue une solution complète de grande qualité pour le refroidissement silencieux des stations de travail et servers équipés de Xéon.
Détails
La gamme NH-U12 : une vraie success story

La gamme NH-U12 : une vraie success story

Le NH-U12DX i4 est le dernier né de la célèbre gamme de radiateurs Noctua NH-U12. Lancée en 2005, la gamme de dissipateurs pour CPU NH-U 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.
Un meilleur accès à la RAM

Un meilleur accès à la RAM

Grâce à son design étroit (profondeur de seulement 45mm), le NH-U12DX i4 assure un accès facilité aux modules de RAM. Installé parallèlement aux emplacements mémoire, il n'empiètera pas sur les barrettes de RAM au sein des plateformes LGA1356, LGA1366 et LGA2011 square ILM même en mode dual-fan (double ventilation). La compatibilité est donc totale avec les dissipateurs pour RAM élevés.
Ventilateur NF-F12 120mm Focused Flow™

Ventilateur NF-F12 120mm Focused Flow™

Plébiscité par plus de 150 articles spécialisés et par des milliers d'utilisateurs dans le monde, le NF-F12 Focused Flow™ est un ventilateur de haut vol célèbre pour sa pression statique étonnante, sa performance de refroidissement et son niveau sonore extrêmement bas.
Compatibilité PWM et Adaptateur Faible Bruit

Compatibilité PWM et Adaptateur Faible Bruit

Le ventilateur 120mm NF-F12, livré avec le NH-U12DX i4, 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 1200 tr/min (au lieu de 1500 tr/min) 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 permettra de créer une configuration en « push/pull » (aspiration/extraction). A cette fin, le NH-U12DX i4 est livré avec des agrafes et des silentblocs anti-vibration sur-mesure additionnels qui permettent de décaler le ventilateur arrière de 5mm afin d'améliorer le confort acoustique en mode dual (double ventilateur).
Système de fixation SecuFirm2™

Système de fixation SecuFirm2™

Les systèmes de fixation SecuFirm2™ répondent aux attentes les plus élevées en termes de qualité, sécurité et de facilité d'installation. Compatible avec les plateformes Intel LGA2011 (square et narrow ILM), LGA2066, LGA1356 et LGA1366 à base de Xéon, le système SecuFirm2™ fourni avec le NH-U12DX i4 assure une pression de contact parfaite et un confort d'installation maximum sur l'ensemble des sockets.
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 Noctua, le NF-F12 fourni bénéficie d'un MTTF de plus de 150 000 heures de tests ; le pack complet NH-U12DX i4 bénéficie d'une garantie totale fabricant de 6 ans.
NH-U12DX i4
Spécifications radiateur
Hauteur (ventilateur non compris)
158 mm
Largeur (ventilateur non compris)
125 mm
Profondeur (ventilateur non compris)
45 mm
Poids (ventilateur non compris)
580 g
Hauteur (ventilateur compris)
158 mm
Largeur (ventilateur compris)
125 mm
Profondeur (ventilateur compris)
71 mm
Poids (ventilateur compris)
755 g
Matériau
cuivre (fond et caloducs), aluminium (plaques de refroidissement), soudé & nickelé
Dimensions du ventilateur
120x120x25
Volume de livraison
  • Ventilateur haut de gamme NF-F12 PWM
  • Adaptateur Faible Bruit (L.N.A.)
  • Pâte thermique NT-H1
  • Système de fixation SecuFirm2™
  • Silentblocs anti-vibration et agrafes pour un second NF-F12
Spécifications ventilateur
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.
22,4 dB(A)
Niveau sonore avec L.N.A. max.
18,6 dB(A)
Puissance consommée
0,6 W
Tension
12 V
MTTF
> 150.000 h
NH-U12DX i4
07.09.2016 // ITNdaily.ru
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NH-U12DX i4 test

Noctua NH-U12DX i4 лишен недостатков. Кулер прост в установке (процесс монтажа занимает меньше времени, чем в случае с любым универсальным продуктом от австрийского производителя), он дешевле мейнстрим СО, ориентированных на большее кол-во совместимых разъемов.
Verdict du test: "Noctua NH-U12DX i4 еще и достаточно компактный и производительный. Профессиональное решение предлагает профессиональный подход, так и должно быть. Рекомендуем." (Евгений Никифоров, ITNdaily.ru)
22.08.2016 // Turkchip.com
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NH-U12DX i4 test

Noctua işlemci soğutucuları ısı değerlerine göz attığımızda boyutlarına göre performans gösterdiklerini görüyoruz. Özellikle Noctua U12DX i4 testleri liderlikle bitirirken, D9DX ise testleri 3.üncü sırada bitirdi. Özellikle Noctua U12DX i4 işlemci soğutucusu işlemcimizi overclock yaptığımızda daha iyi performans gösterirken Thermalright Macho Zero ile başa baş sonuçlara imza atıyor.
Verdict du test: "Noctua NH-U12DX i4 ve NH-D9DX i4 3U işlemci soğutucuları fiyat/performans olarak oldukça başarılı. Sunduğu bir çok özelliği, zengin kutu içeriği ile sunucu/workstationlara yeni bir çözüm getirirken Turkchip Golden Award ödülünü de hak ediyor." (Murat Yildirim, Turkchip.com)
05.02.2016 // PC Ekspert
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NH-U12DX i4 test

Kod overclockinga nismo koristili low noise adaptere nego smo mjerenja samo izvršili pri punim brzinama ventilatora. Rezultat nije nimalo loš kada je u pitanju veći U12DX hladnjak koji očito bolje funkcionira pod većim opterećenjem jer je ovdje za 3°C bolji od i32. U9DX s oba ventilatora i u punoj brzini drži procesor na iznimno vrućih maksimalno zabilježenih 95°C. Prosjek maksimalnih temperatura za U12DX iznosi 83.13°C, za U9DX 87.1°C, za i32 86.5°C i za D15 80.33°C. Maksimalna potrošnja sistema je iznosila 275 W.
Verdict du test: "Noctua već neko vrijeme vješto koristi svoje umijeće i postojeće desktop modele kako bi proširili tržište i na workstation/server segment. Dokaz tome su i ova dva modela, koji su poznate Noctuine premium kvalitete, jednostavnog načina montaže ali i dobrih performansi." (Krešimir Matanović, PC Ekspert)
02.06.2014 // GreenTechReviews.ru
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NH-U12DX i4 test

Noctua NH-U12DX i4 продемонстрировал впечатляющие результаты и даже в абсолютно бесшумном режиме обошёл стандартные решения более, чем на 20 градусов! Кулер сочетает в себе исключительно лучшие качества и полностью оправдывает свою цену.
Verdict du test: "Если остро стоит вопрос о смене штатных шумных кулеров на что-то более эффективное и тихое, то Noctua NH-U12DX i4 вне конкуренции!" (Владимир Солонин, GreenTechReviews.ru)
02.03.2014 // XtremeSystems.org
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NH-U12DX i4 test

Mind you that i included Liquid Cooling solutions(in the same price range) as well.None of the coolers obviously have any issue whatsoever in IDLE with the Intel Xeon E5-2687W not overclocked.The Noctua NH-U12DX i4 managed to outperform the Liquid Cooling solutions in load mode. Overall fine results.
Verdict du test: "Even in single fan mode, the NH-U12DX i4 performs extremely well." (Ambrosidou Nat, XtremeSystems.org)
28.05.2013 // mod-your-case.de
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NH-U12DX i4 test

Noctua zeigt mit dem NH-U12DX i4 eindeutig, das Server und Workstations nicht laut sein müssen, um mit einem kühlen Kopf agieren zu können. Der NH-U12DX i4 setzt sich um Längen vor den BXSTS200C Kühler von Intel. Jedoch ist mit dem Noctua Kühler kein Betrieb in einem 2HE Server mehr möglich. Bei einem Einsatz in Workstation, welche meist in einem Desktop ähnlichen Case verbaut sind, kann der Kühler jedoch zeigen, was in ihm steckt.
Verdict du test: "Kommt ein passendes Gehäuse zum Einsatz, so ist der NH-U12DX i4 eine echte Alternative zu dem von Intel angebotenen Kühler. Der NH-U12DX i4 bietet nicht nur eine höhere Kühlleistung, sondern ermöglicht auch einen sehr ruhigen Betrieb der Workstation, welcher für ein angenehmes Arbeiten notwendig ist. Die Montage des Kühlers ist zudem schnell und einfach zu bewerkstelligen." (Patrick Seus, mod-your-case.de)

NA-FC1

  • Contrôleur de vitesse compact, ultra flexible pour ventilateurs PWM 4 broches
NH-U12DX i4

NM-AM4 mounting-kit

  • Le kit de montage NM-AM4 SecuFirm2™ rend les radiateurs de processeurs Noctua compatibles avec le socket AMD AM4.
NH-U12DX i4

NA-SEC1

  • Câbles-rallonges 4-broches
NH-U12DX i4

L'achat est possible via nos partenaires commerciaux locaux ou directement sur nos boutiques en ligne officielles Amazon et eBay :



En tant que Partenaire Amazon, nous réalisons un bénéfice sur les achats remplissant les conditions requises.

eBay.com
eBay.de

Instructions de montage (PDF)

Feuille d'informations (PDF)

FAQs

Is the cooler compatible with all LGA1366 mainboards?

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?

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

Which Noctua CPU coolers are compatible with AMD AM4 (Ryzen)?

Does the mounting-system of the NH-U12DX i4/NH-D9DX i4 3U/NH-U9DX i4 support LGA2011 based Xeon platforms with Narrow ILM?

Can Noctua coolers be installed on LGA2011 Narrow ILM platforms?

Can the cooler be used in 4U cases?

Is the cooler compatible with the LGA2011-3 socket?

Is it a problem that the CPU heatspreader is not covered completely by the heatsinkbase on LGA2011-3?

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

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

My unlocked Intel CPU is running too hot although my heatsink supports the specified TDP, what's the problem?

Can I keep using the backplate / mounting system of my previous Noctua cooler for my new one?

Which Noctua CPU coolers are compatible with Intel LGA2066?

My Intel CPU is running too hot although my heatsink supports the specified TDP, what's the problem?

Is the cooler compatible with all LGA1366 mainboards?

The DX models (NH-U12DX i4, NH-U9DX i4, NH-U12DX 1366, NH-U9DX 1366) can only be used on mainboards that have a backplate with screw threads for CPU cooler installation (such as the Intel reference backplate for Xeon 5500). The cooler is thus incompatible with Xeon 3500 and Core i7 mainboards that don’t have such a backplate. Please choose our normal retail models with LGA1366 support (or NM-I3 kit) for these mainboards.

1366 compatibility

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 CPU compatibility list 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.

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.

Which Noctua CPU coolers are compatible with AMD AM4 (Ryzen)?

The following models include a mounting-kit for socket AM4 and are thus compatible out of the box:

NH-D15 (AM4 mounting included since 2019, only older coolers require upgrade kit)
NH-D15 SE-AM4
NH-D15S (AM4 mounting included since 2019, only older coolers require upgrade kit)
NH-U14S (AM4 mounting included since 2019, only older coolers require upgrade kit)
NH-U12S (AM4 mounting included since 2019, only older coolers require upgrade kit)
NH-U12S SE-AM4
NH-U9S (AM4 mounting included since 2019, only older coolers require upgrade kit)
NH-D9L (AM4 mounting included since 2019, only older coolers require upgrade kit)
NH-C14S (AM4 mounting included since 2019, only older coolers require upgrade kit)
NH-L12S
NH-L9x65 (AM4 mounting included since 2019, only older coolers require upgrade kit)
NH-L9x65 SE-AM4
NH-L9a-AM4

The following models can be made compatible with the AM4 socket free of charge using the NM-AM4 upgrade-kit:

NH-C12P
NH-C12P SE14
NH-C14
NH-C14S (AM4 mounting included since 2019, only older coolers require upgrade kit)
NH-D14
NH-D14 SE2011
NH-D15 (AM4 mounting included since 2019, only older coolers require upgrade kit)
NH-D15S (AM4 mounting included since 2019, only older coolers require upgrade kit)
NH-D9L (AM4 mounting included since 2019, only older coolers require upgrade kit)
NH-L12
NH-L9x65 (AM4 mounting included since 2019, only older coolers require upgrade kit)
NH-U12
NH-U12F
NH-U12P
NH-U12P SE1366
NH-U12P SE2
NH-U9
NH-U9B
NH-U9B SE2
NH-U9F

The following models can be made compatible with the AM4 socket free of charge using the NM-AM4-UxS upgrade-kit:

NH-U14S (AM4 mounting included since 2019, only older coolers require upgrade kit)
NH-U12S (AM4 mounting included since 2019, only older coolers require upgrade kit)
NH-U9S (AM4 mounting included since 2019, only older coolers require upgrade kit)

The following models can be made compatible with the AM4 socket free of charge using the NM-AM4-L9aL9i upgrade-kit:

NH-L9a
NH-L9i

The following models can be made compatible with the AM4 socket using the NM-AM4 upgrade-kit but are not eligible for Noctua‘s free mounting offer, so users have to purchase the kit at local resellers:

NH-U12DO (Note that the A3 version is not compatible!)
NH-U12DX
NH-U12DX 1366
NH-U12DX i4
NH-U9DX i4
NH-U9DX 1366
NH-U9DO (Note that the A3 version is not compatible!)

The following models are not compatible with the AM4 socket and can not be upgraded:

NH-U14S TR4-SP3
NH-U12S TR4-SP3
NH-U9 TR4-SP3
NH-U12DO A3
NH-U9 DO A3

Does the mounting-system of the NH-U12DX i4/NH-D9DX i4 3U/NH-U9DX i4 support LGA2011 based Xeon platforms with Narrow ILM?

There are two different types of ILM (Independent Loading Mechanism) for Intel’s LGA2011 based Xeon CPUs: Square ILM with 80x80mm hole spacing and Narrow ILM with 56x94mm hole spacing. The mounting system of the NH-U12DX i4/NH-D9DX i4 3U/NH-U9DX i4 is fully compatible with both types:

Xeon Compatibility

Can Noctua coolers be installed on LGA2011 Narrow ILM platforms?

The NH-U12DX i4 and NH-U9DX i4 include mounting hardware for LGA2011 Narrow ILM. Other models are mechanically incompatible with the Narrow ILM mounting system and can thus not be used on this platform.

Can the cooler be used in 4U cases?

Common 4U cases usually don’t provide sufficient clearance for tower coolers with 120mm fans and 158mm height. Please thus carefully check whether your case provides sufficient clearance or choose the 9cm variant, which is fully compatible with common 4U cases.

Is the cooler compatible with the LGA2011-3 socket?

Yes. Due to the heatsink mounting mechanism being identical on LGA2011-0 and 2011-3, the cooler supports both types of LGA2011-3.

Is it a problem that the CPU heatspreader is not covered completely by the heatsinkbase on LGA2011-3?

No. Depending on the orientation of the cooler, 1-2mm at the outer edge of the heatspreader may not be covered by the heatsink base. As the heat is concentrated at the center of the CPU and the outermost parts are irrelevant for heat-transfer, this is no problem at all.

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.

My unlocked Intel CPU is running too hot although my heatsink supports the specified TDP, what's the problem?

Intel's unlocked CPUs (K, X and C suffix) can dissipate more heat than indicated by the TDP specification if
  1. the TDP limits are extended or disabled in the motherboards' BIOS.
  2. the motherboard applies automatic overclocking by default, e.g. by raising the supply voltage of the CPU and using higher Turbo-Mode multipliers.
  3. some software creates untypical loads, e.g. Prime95 with AVX2 support and a) and/or b) apply.

This can lead to temperature issues, especially when using smaller coolers or compact cases.

The actual power draw of the processor can be monitored with software provided by the motherboard vendor or with 3rd party tools like HWInfo or HWMonitor.

If you encounter temperature issues (>90°C) and notice a higher than specified power draw, please ensure that no automatic overclocking is applied and limit the TDP to the specified value by choosing appropriate BIOS settings.

For Kaby Lake CPUs, it may also help to lower the CPU clock speed for applications that heavily use the AVX instruction set, which can lead to higher loads and power draw. This option is usually referred to as “AVX offset” and makes it possible to lower the multiplier specifically for AVX based applications without reducing performance when using other instruction sets. Depending on the quality of the CPU and the programs being used, a reduction of 2-3 steps usually gives very good results.

Please contact your motherboard vendor for details if you have trouble finding the appropriate settings in the BIOS.

All our TDP recommendations are based on thorough testing with the default values specified by Intel using popular applications such as Asus Realbench and prime95. Please note, however, that prime95 creates a particularly high load that goes beyond typical application scenarios and this leads to elevated temperatures. We thus recommend using other programs such as Realbench for checking the stability and temperatures of the CPU in realistic scenarios.

Can I keep using the backplate / mounting system of my previous Noctua cooler for my new one?

Most Noctua SecuFirm™ mounting parts are cross-compatible, so if you’re replacing one Noctua cooler with another, it is usually possible to keep the original backplate and/or mounting system in place in order to re-use it for the new cooler. If you had your previous Noctua cooler installed on an Intel LGA115x (LGA1156, LGA1155, LGA1151, LGA1150), LGA2011 (LGA2011-0, LGA2011-3) or LGA1366 system and replace it with an NH-U14S, NH-U12S or NH-U9S, you only need to replace the original mounting bars with the NM-IMB3 ones supplied with the new cooler. For all other models, you can keep the entire mounting system in place on the aforementioned Intel sockets. On AMD AM2, AM2+, AM3, AM3+, FM1, FM2, FM2+, you only need to replace the original mounting bars with the ones supplied with the new cooler.

Which Noctua CPU coolers are compatible with Intel LGA2066?

Due to the heatsink mounting mechanism being identical on LGA2011 and LGA2066, Noctua’s SecuFirm2™ mounting systems for LGA2011 also support Intel’s upcoming ‘Basin Falls’ X299 HEDT (High End Desktop) platform for ‘Skylake-X’ and ‘Kaby Lake-X’ processors. Most current Noctua coolers already include SecuFirm2™ mounting systems for LGA2011 and can thus be used on LGA2066 motherboards without any upgrades or modifications.

The following models include a mounting-kit for socket LGA2011/2066 and are thus compatible out of the box:

NH-C14S
NH-D14 SE2011
NH-D15
NH-D15S
NH-D9L
NH-L12
NH-L9x65
NH-U12S
NH-U12DX i4
NH-U14S
NH-U9DX i4
NH-U9S

The following models can be made compatible with the LGA2011/LGA2066 sockets free of charge using the NM-I2011 upgrade-kit:

NH-C12P
NH-C12P SE14
NH-C14
NH-D14
NH-D15 SE-AM4
NH-U12S SE-AM4
NH-L9x65 SE-AM4
NH-U12
NH-U12F
NH-U12P
NH-U12P SE1366
NH-U12P SE2
NH-U9
NH-U9B
NH-U9B SE2
NH-U9F

The following models can be made compatible with the LGA2011/LGA2066 sockets using the NM-I2011 upgrade-kit but are not eligible for Noctua‘s free mounting offer, so users have to purchase the kit at local resellers:

NH-U12DO (Note that the A3 version is not compatible!)
NH-U12DX
NH-U12DX 1366
NH-U9DX 1366
NH-U9DO (Note that the A3 version is not compatible!)

The following models are not compatible with the LGA2011/LGA2066 sockets and can not be upgraded:

NH-L9a
NH-L9i
NH-U12DO A3
NH-U9DO A3

My Intel CPU is running too hot although my heatsink supports the specified TDP, what's the problem?

Current processors from Intel, especially the unlocked models with the suffixes C, K, X or XE (e.g. Core i7-8700K, Core i9-7900X oder Core i9-9900K) can dissipate noticeably more heat than indicated by the TDP specification.

While many motherboard models stick to the recommended power levels and clock speeds settings from Intel, there are models where the UEFI BIOS is configured in such a way that:

  1. the TDP limits are extended or disabled.
  2. the motherboard applies automatic overclocking by default, e.g. by raising the supply voltage of the CPU and using higher Turbo-Mode multipliers.

Depending on the load scenario and CPU configuration settings, the actual power draw can be 1.5-3 times as high the stated TDP value. This can lead to temperature issues, especially when using smaller coolers, compact cases or cases with poor airflow, when some applications create very high loads, e.g. Prime95 with AVX2 support, 3D-rendering or simulation software.

The actual power draw of the processor can be monitored with software provided by the motherboard vendor or with 3rd party tools like HWInfo or HWMonitor.

If you encounter temperature issues (>90°C) and notice a higher than specified power draw, please ensure that no automatic overclocking is applied. You might also want to limit the TDP to either the specified value by Intel or a value that is 5-10W below the value previously read out from the CPU. This can be done in BIOS by setting the “Long Term Duration Power” manually instead of “Auto”.

Furthermore, it may also help to lower the CPU clock speed for applications that heavily use the AVX instruction set, which can lead to higher loads and power draw. This option is usually referred to as “AVX offset” and makes it possible to lower the multiplier specifically for AVX based applications without reducing performance when using other instruction sets. Depending on the quality of the CPU and the programs being used, a reduction of 2-3 steps usually gives very good results.

The option to set an AVX-offset value is usually available for the following CPU generations:

  • LGA1151:7th, 8th and 9th generation (Kaby Lake, Coffee Lake)
  • LGA2011-3: 6th generation (Broadwell-E)
  • LGA2066: 7th and 8th generation (Skylake-X)

Please contact your motherboard vendor for details if you have trouble finding the appropriate settings in the BIOS.

All our TDP recommendations are based on thorough testing with the default values specified by Intel using popular applications such as Asus Realbench and prime95. Please note, however, that prime95 creates a particularly high load that goes beyond most typical application scenarios and this leads to elevated temperatures. We thus recommend using other programs such as Realbench for checking the stability and temperatures of the CPU in realistic scenarios.

Please also note that CPUs that use thermal paste instead of soldering between the DIE and the heatspreader generally run hotter. Due to the thermal bottleneck created by the thermal paste, temperatures can be high even at the specified TDP.

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