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Il est important de rappeler que le NH-U14S DX-3647 est un modèle exclusivement dédié au socket Intel LGA3647. 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. |
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Série DX pour Intel Xeon
Les ventirads pour CPU de la série DX Noctua ont vu le jour en 2008 et sont devenus une référence dans le domaine des solutions de refroidissement par air silencieuses pour les processeurs Intel Xeon. Grâce à des performances acoustiques supérieures, ces ventirads sont parfaits pour les stations de travail ou les serveurs ayant des contraintes sonores spécifiques (ex : production vidéo ou audio, création de contenu, ingénierie, etc…).
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Conçu spécifiquement pour le LGA3647
Les ventirads de la ligne DX-3647 ont été spécifiquement conçus pour intégrer les plateformes professionnelles Intel LGA3647 et sont donc parfaits pour refroidir les CPU Xeon Scalable basés sur l’architecture Skylake-SP (séries « Purley » Platinium, Gold, Silver ou Bronze) ou les processeurs Xeon-Phi (noms de code Knight’s Landing ou Knight’s Mill).
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Surface de contact augmentée
Avec une dimension de 70x56mm, la surface de contact en cuivre de la base du radiateur est plus de deux fois plus grande que le modèle standard. Conçu spécifiquement pour s’adapter au format du dissipateur thermique (IHS) des processeurs dédiés au socket Intel LGA3647, ce design sur-mesure permet de véhiculer de manière optimale la chaleur issue du CPU depuis la base du ventirad jusqu’aux ailettes en passant par les caloducs.
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Compatible avec les sockets LGA3647 carrés et rectangulaires
Le système de fixation pour ventirad SecuFirm2™ est livré avec deux jeux d’étriers afin de pouvoir s’adapter aux deux types de sockets LGA3647 (carré ou rectangulaire). Grâce aux vis de fixation pré-installées et aux guides clipsables pour processeur (type carré et type rectangulaire sans connecteur Omni-Path fabric, avec connecteur fabric sur demande), l’installation s’avère simple, rapide et sécurisée.
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Format 140mm : pour une performance maximale
Avec six caloducs, une surface radiateur de plus de 6000cm2 et un ventilateur imposant et ultra-optimisé NF-A15 140mm, le NH-U14 DX-3647 offre un niveau de performance et de silence encore meilleur. Il est ainsi idéal pour ceux qui souhaitent monter une station de travail Xeon ultra performante quasi inaudible.
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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.
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Compatibilité PWM
Le célèbre ventilateur haut de gamme NF-A15 140mm, livré avec le NH-U14S DX-3647, est compatible PWM et autorise ainsi le pilotage automatique de la vitesse via la carte mère : il est donc quasi inaudible quand les sollicitations du processeur sont faibles et prend de la vitesse uniquement quand cela est nécessaire.
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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).*
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Pâte thermique NT-H1 pré-appliquée
La célèbre pâtre thermique Noctua est une solution TIM professionnelle garantissant une résistance thermique minimale et une stabilité sur le long terme incroyable. La pré-application de la pâte sur la base du ventirad permet de garantir une répartition régulière et optimale mais aussi de gagner un temps précieux … idéal pour les intégrateurs informatiques !
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Garantie fabricant de 6 ans
Les produits Noctua sont connus pour leur qualité et longévité sans failles. Fidèle à cette renommée, le ventirad NH-U14S DX-3647 est conçu pour durer et, tout comme l’ensemble des ventilateurs Noctua, le NF-A15 fourni bénéficie d’un MTTF de plus de 150 000 heures de tests. Le package complet est assorti d’une garantie fabricant complète de 6 ans.
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Notes and warnings
Il est important de rappeler que le NH-U14S DX-3647 est un modèle exclusivement dédié au socket Intel LGA3647. 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.
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Intel Xeon LGA3647
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Hauteur (ventilateur non compris)
165 mm
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Largeur (ventilateur non compris)
150 mm
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Profondeur (ventilateur non compris)
52 mm
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Poids (ventilateur non compris)
797 g
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Hauteur (ventilateur compris)
165 mm
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Largeur (ventilateur compris)
150 mm
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Profondeur (ventilateur compris)
78 mm
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Poids (ventilateur compris)
957 g
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Matériau
cuivre (fond et caloducs), aluminium (plaques de refroidissement), soudé & nickelé
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TDP max.
voir guide TDP
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Dimensions du ventilateur
140x150x25 (avec fixation 120mm), 140x140x25 (avec fixation 120mm), 120x120x25
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Volume de livraison
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6 ans
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Modèle
Noctua NF-A15 PWM
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Type roulements
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Vitesse de rotation max. (+/-10%)
1500 RPM
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Vitesse de rotation min. (PWM, +/-20%)
300 RPM
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140,2 m³/h
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Niveau sonore max.
24,6 dB(A)
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Puissance consommée
1,56 W
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Tension
12 V
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MTTF
> 150.000 h
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NH-U14S DX-3647 test
「Noctua NH-U14S DX-3647」の標準シングルファン構成と増設デュアルファン構成の両方についてファン回転数を1200RPMに固定してストレステストを実行した時のCPU温度は次のようになりました。
Xeon W-3175XをIntel公式の仕様値であるTDP255Wの定格動作の通りに電力制限を課していますが、ストレステスト中のCPU温度は、温度依存で制限のかかる閾値85度よりも十分に低い、70度前後に収まりました。LGA3647系CPUに最適化された大型銅製ベースプレートは300Wクラスの熱源に対して十分な熱交換効率を実現しており、150サイズファンを搭載したヒートシンクの放熱容量も300Wクラスの放熱に対応できています。Noctua製空冷CPUクーラー「Noctua NH-U14S DX-3647」ならXeon W-3175Xの定格動作をサーマルスロットリングさせることなく運用できることがわかります。
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Verdict du test: "冷却性能の検証結果からもわかるように「Noctua NH-U14S DX-3647」は、最大で300W超クラスの電力負荷になる28コア56スレッド「Intel Xeon W-3175X」をサーマルスロットリングさせることなく安定して運用することができる冷却性能を発揮しました。「Intel Xeon W-3175X」はTDP255WとなっておりLGA3647プラットフォームで提供されるIntel Xeonスケーラブルプロセッサー最上位モデルのXeon Platinum 8280でさえもTDP205Wなので、「Noctua NH-U14S DX-3647」は基本的に全てのIntel Xeonスケーラブルプロセッサーに対応できます。"
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NH-U14S DX-3647 test
Noctua NH-U14S DX-3647 является самым тихим кулером из тройки доступных вариантов. Конечно, он самый массивный, но именно благодаря этому мы можем использовать один тихий вентилятор, добившись минимального уровня шума – при максимальной скорости работы его не слышно, а при автоматическом управлении (800-900 об/мин) его не услышать даже наклонившись к системе в упор. Что касается эффективности, то она примерно равна NH-U12S DX-3647. Отличия заключаются в габаритах и в количестве вентиляторов, что и позволяет добиться равной эффективности. Если не брать во внимание габариты, то NH-U14S DX-3647 тише, даже если сравнивать максимальные обороты флагмана и автоматическое управление вентиляторами NH-U12S DX-3647.
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Verdict du test: "Как итог – при наличии достаточного места в корпусе, NH-U14S DX-3647 охладит любой существующий процессор LGA3647, сохранив полную тишину в комнате."
(Солонин Владимир, GreenTechReviews.ru)
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NH-U14S DX-3647 test
Noctua broke the mold with their new NH-U14S DX-3647 cooler. It can handle both narrow and square sockets with Noctua’s SecuFirm2 mounting system, and the oversized NF-A15 PWM fan excels at keeping the heatsink cool and makes little noise. If you are building a high-end Intel Xeon Scalable workstation for yourself or for your clients, you should look at these coolers.
Undoubtedly the Noctua NH-U14S DX-3647 heatsink is massive compared to most LGA3647 heatsinks. As a result, it will not fit most standard 4U workstation cases. We could not install the DX-3647 in our testing workstation based on a Supermicro SC747. This is a 4U workstation case as the NH-U14S is too tall. Our main workstation based on a Thermaltake Core X9 which is oversized for most users, it does handle the DX-3647 and has plenty of space left over.
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Verdict du test: "If you are using an Intel Xeon Scalable workstation and need an efficient cooler, the Noctua NH-U14S DX-3647 will maintain class leading temperatures while minimizing noise." (William Harmon, ServeTheHome.com)
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NH-U14S DX-3647 test
Noctua does it again. For people wanting to keep it simple, air cooling is about as simple as it gets. All three coolers from Noctua are very capable and allow flexibility for different case constraints. The combination of Noctua’s easy installation process plus top end performance makes the DX-3647 line of collers for LGA3647 platform an amazing choice for the first time builder or established enthusiast. You would be hard pressed to find a better tower cooler option in this range with this combination of performance, style, and operating noise levels. When you get to the point of making a choice on your cooling solution for your new LGA3647 platform, you really cannot go wrong with the DX-3647 Coolers. They have got enough technology built in to make your head spin, runs dead silent, looks great, fixes one of the greatest cooling challenges, and comes with a six-year warranty to make sure you are happy with your purchase in the long term. The suggested retail prices are as follows:
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Verdict du test: "Noctua does it again... You would be hard pressed to find a better tower cooler option in this range with this combination of performance, style, and operating noise levels." (Ambrosidou Nat, XtremeSystems.org)
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NH-U14S DX-3647 test
The SNK-P0068APS4 led to an average temperature of 31C at its full fan-speed while the Noctua NH-D9 DX-3647 4U had an average temperature of 23.5C with its fans at their full speed or 38.8C when using the automatic fan control enabled via the BIOS. The minimum and maximum core temperatures were also aligned with expectations. The Noctua heatsink did a nice job of allowing this Intel Xeon Silver CPU to run extremely cool inside this 4U chassis even at full load.
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Verdict du test: "From compiling the Linux kernel to running Python scripts to the many other workloads tested, the Noctua Xeon Scalable 4U heatsink was doing a great job at keeping the system running cool, especially at full-speed but even with the automatic fan control it was doing a great job. Even at full-speed, the NF-A9 fans were barely audible outside of the steel Rosewill 4U chassis, especially if you are running multiple systems in the room." (Michael Larabel, Phoronix.com)
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L'achat est possible via nos partenaires commerciaux locaux ou directement sur nos boutiques en ligne officielles Amazon et eBay :
- Instructions de montage & Feuille d'informations (PDF)
- FAQs
- MAINBOARD COMPATIBILITÉ
- CASE COMPATIBILITY
- CPU COMPATIBILITY
FAQs
I'm experiencing fan speed issues with my motherboard from Supermicro, what can I do?
I get a CPU fan error using my Noctua PWM fan, is it faulty?
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?
I get a CPU fan error despite the fan is running!
I have difficulties installing the cooler, can you help?
My case supports CPU coolers of up to XXXmm height, which model should I choose?
Can I install a Noctua cooler in my system from Acer, Dell, HP or Lenovo?
How should I clean my Noctua cooler?
Is it possible to use the cooler with vertical graphic cards?
Which Noctua fan or CPU cooler should I buy? How to choose the right model?
Does the NF-A15 PWM that comes with Noctua coolers run at a different speed (1500rpm) than the retail model (1200rpm)?
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.
I get a CPU fan error using my Noctua PWM fan, is it faulty?
My Noctua PWM fan runs at a much higher minimum speed than advertised, what is wrong?
- 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.
- 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:
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?

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:
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.
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.
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 get a CPU fan error despite the fan is running!
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.
I have difficulties installing the cooler, can you help?
My case supports CPU coolers of up to XXXmm height, which model should I choose?
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.
What Thermal Design Power (TDP) is this cooler recommended for and how much Watt (W) of heat can it dissipate?
How should I clean my Noctua cooler?
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.
Is it possible to use the cooler with vertical graphic cards?
Which Noctua fan or CPU cooler should I buy? How to choose the right model?
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