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La línea de disipadores DX de Noctua se ha convertido en una opción predeterminada para la refrigeración silenciosa de alto rendimiento de los CPU de Intel Xeon. La última actualización i4 es compatible con las plataformas Xeon LGA2011 (tanto Square ILM como Narrow ILM), LGA1356 y LGA1366 y el nuevo modelo de D9 ofrece un mejor rendimiento y una mejor compatibilidad que las anteriores versiones de 9 cm: Gracias a sus dimensiones de 95 x 95 mm y a su altura reducida de 110 mm, el NH-D9DX i4 ofrece una compatibilidad 3U y despeja las ranuras de la RAM en LGA2011 Square ILM y LGA13xx. Al mismo tiempo, el diseño de doble torre y el nuevo NF-A9 PWM garantiza un mejorado rendimiento de refrigeración silenciosa. Equipado con el sistema de montaje profesional SecuFirm2™ y junto con el compuesto térmico NT-H1 de uso industrial de Noctua, el NH-D9DX i4 3U forma un completo y magnífico conjunto para una refrigeración silenciosa en puestos de trabajo y servidores de Xeon.

Detalles
Compatibilidad 3U

Compatibilidad 3U

El NH-D9DX i4 tiene únicamente una altura de 110 mm. Esto quiere decir que mide 15 mm menos que los anteriores 4U compatibles con los disipadores de la línea DX de 9 cm y permite que el NH-D9DX i4 también sea compatible con cajas 3U, ideal para aplicaciones 3U sensibles al ruido en campos como el procesamiento de audio o vídeo.
Compatibilidad RAM del 100%

Compatibilidad RAM del 100%

Gracias a sus dimensiones de 95 x 95 mm, el NH-D9DX i4 no sobresale por encima de las ranuras de la RAM en el LGA2011 Square ILM, LGA1366 y LGA1356. Todo ello permite que el usuario tenga pleno acceso a los módulos de memoria y garantiza una compatibilidad del 100% con difusores térmicos altos o ventiladores de memoria opcionales.*
Ventilador NF-A9 de gran calidad

Ventilador NF-A9 de gran calidad

El altamente optimizado ventilador NF-A9 cuenta con el marco AAO de Noctua, así como con sofisticadas medidas de diseño aerodinámico como los Flow Acceleration Channels (Canales de Circulación Acelerada), que permiten mejorar la conocida eficiencia de los anteriores modelos de 92 mm de Noctua y obtener un rendimiento de refrigeración superior del NH-D9DX i4.
Soporte PWM y Adaptador para la reducción de ruido

Soporte PWM y Adaptador para la reducción de ruido

El ventilador NF-A9 de 92 mm del NH-D9DX i4 incluye el soporte PWM para un conveniente control automático de la velocidad a través de la placa base. Además, la velocidad máxima del ventilador se puede reducir de 2000 a 1550 rpm y conseguir un funcionamiento más silencioso al utilizar el Adaptador para la reducción de ruido.
Doble ventilador (opcional)

Doble ventilador (opcional)

El NH-D9DX i4 incluye un conjunto adicional de clips de montaje del ventilador para que los usuarios que deseen un mayor rendimiento de refrigeración puedan añadir un segundo NF-A9 opcional a la parte frontal del conjunto de aletas. Utilizando el cable con forma de Y, que se incluye junto con ventilador NF-A9 PWM, ambos ventiladores pueden conectarse a un único conector del ventilador de la CPU.**
Sistema de montaje SecuFirm2™

Sistema de montaje SecuFirm2™

Los sistemas de montaje SecuFirm2™ de Noctua se han convertido en sinónimo de calidad, seguridad y fácil manejo. Al ser compatibles con las plataformas Xeon LGA2011 (tanto ILM Cuadrado como Estrecho), LGA2066, LGA1356 y LGA1366 de Intel, el montaje de SecuFirm2™ incluido con el NH-D9DX i4 garantiza una presión de contacto perfecta y máxima comodidad en todos los sockets.
Compuesto térmico NT-H1

Compuesto térmico NT-H1

Tras haber recibido más de 100 premios y recomendaciones de periodistas especializados de todo el mundo, el NT-H1 de Noctua es una solución térmica profesional y de probada calidad que proporciona una resistencia térmica mínima, gran facilidad de uso y una destacable fiabilidad.
6 años de garantía

6 años de garantía

Los productos de Noctua son conocidos por su impecable calidad y destacada longevidad. Al igual que todos los demás ventiladores de Noctua, el NF-A9 ofrece un tiempo medio de vida entre fallos (MTBF) de más de 150 000 horas y el paquete NH-D9DX i4 completo viene con una garantía total del fabricante de 6 años.
*For LGA2011 Narrow ILM, please see this FAQ.

**El ventilador frontal opcional se colocará sobre la RAM y, dependiendo de la altura de los módulos RAM, el ventilador podría tener que desplazarse hacia arriba, de modo que la altura total del disipador excedería los 110 mm. Por este motivo, el disipador podría no encajar en algunas cajas 3U. Para garantizar una perfecta compatibilidad 3U en modo de doble ventilador, utilice una memoria de bajo perfil, de hasta 22 mm de altura.
NH-D9DX i4 3U
Especificaciones disipador
Intel LGA2066, LGA2011-0 & LGA2011-3 (Square ILM & Narrow ILM), LGA1356, LGA1366 (con Xeon backplate)
Altura (sin ventilador)
110 mm
Anchura (sin ventilador)
95 mm
Profundidad (sin ventilador)
95 mm
Altura (con ventilador)
110 mm
Anchura (con ventilador)
95 mm
Profundidad (con ventilador)
95 mm
Peso (sin ventilador)
428 g
Peso (con ventilador/es)
531 g
Material
Cobre (base y heat-pipes), aluminio (aletas de refrigeración), uniones soldadas, niquelado
Tamaño del ventilador
92x92x25
Volumen de entrega
  • Ventilador de primera calidad NF-A9 PWM
  • Adaptador para reducción del ruido (L.N.A.)
  • Compuesto térmico NT-H1
  • Sistema de montaje SecuFirm2™
  • Ganchos de ajuste para un segundo ventilador NF-A9
Garantía
6 años
Especificaciones ventilador
Rodamiento
Velocidad de rotación max. (+/-10%)
2000 RPM
Velocidad de rotación con L.N.A. max. (+/-10%)
1550 RPM
Velocidad de rotación min. (PWM, +/-20%)
400 RPM
Sonoridad max.
22,8 dB(A)
Sonoridad con L.N.A. max.
16,3 dB(A)
Potencia
1,2 W
Voltaje
12 V
MTTF
> 150.000 h
NH-D9DX i4 3U
24.05.2017 // i2HARD
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NH-D9DX i4 3U Opinión

Процессорный кулер Noctua NH-D9DXi4 3U является интересным и неоднозначным решением. С одной стороны, мы имеем компактную малую версию топового охладителя серии «D», с другой - систему охлаждения с узкой спецификацией и небольшим количеством поддерживаемых платформ (только LGA2011(-v3), LGA1356, LGA1366 и анонсированная LGA2066). В последнем случае новинка имеет расширенную модель NH-D9L, где общее число доведено до максимума, и в них входят практически все решения из поколений AMD и Intel.
Resultado del análisis: "Однако, несмотря на данные особенности, охладитель Noctua NH-D9DXi4 3U оказывается неплохим крепышом и хорошо справляется с неразогнанным шестиядерным процессором семейства Broadwell-E, не давая спуску более массивному и дорогому решению. В конечном итоге новинка отлично подойдет для сборки компактной системы, к примеру, на базе материнской платы размера mini-ITX производства ASRock - X99E-ITX/ac, где отлично впишется в общую концепцию со своими габаритами." (Сайфуллин Никита, i2HARD)
09.09.2016 // ITNdaily.ru
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NH-D9DX i4 3U Opinión

Noctua NH-D9DX i4 3U предназначен не только для серверных решений Intel Xeon, но и для мощных и производительных Intel Core i7, ориентированных на разъемы LGA2011-0/LGA2011-3, LGA1356 и LGA1366.
Resultado del análisis: "Для ЦП Intel Xeon E5-2609 v4 кулер Noctua NH-D9DX i4 3U является идеальным решением. Вентилятор не разгоняется до стремительных скоростей, СО остается полностью бесшумной даже в стресс-тестах." (Евгений Никифоров, ITNdaily.ru)
12.01.2015 // ByTheWay.gr
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NH-D9DX i4 3U Opinión

Αποτελέσματα επί αποτελεσμάτων, τρεις - τέσσερις εγκαταστάσεις και περίπου τρεις μέρες συμβίωσης οφείλουν να καταλήξουν σε ένα κάποιο συμπέρασμα. Ποιο είναι το επιμύθιο για την συγκεκριμένη πρόταση; Πάμε να δούμε αν η Noctua κάνει και πάλι όσα υπόσχεται. Στο τομέα των υλικών κατασκευής, του φινιρίσματος, της ποιότητας του παρεχόμενου ανεμιστήρα και της εν γένει εργονομίας δεν είναι υπερβολή να πούμε ότι η Noctua διδάσκει. Δεν θέλουμε να αναφέρουμε συγκεκριμένους μεγάλους κατασκευαστές που θα ήταν υπερευχαριστημένοι αν παρείχαν ανεμιστήρες που να μπορούσαν έστω και να αντέξουν την σύγκριση με αυτούς της Αυστριακής εταιρίας.Με τον 92άρη NF-Α9 PWM να είναι στην πράξη σχεδόν αθόρυβος η όλη πρόταση μπορεί σαφώς να χαρακτηριστεί ήσυχη. Εκτιμούμε ότι το 80% του γενικού πληθυσμού δεν θα δυσφορούσε ακόμα και με τους δύο ανεμιστήρες στα 12v ενώ το υπόλοιπο 19% θα προτιμούσε να χρησιμοποιήσει την παρεχόμενη αντιστάση για λειτουργία σε χαμηλότερη τάση. Και ναι,καλά καταλάβατε το εναπομείναν 1% είναι καταδικασμένο να μείνει ανικανοποίητο με οτιδήποτε πιο φασαριόζικο από το passive.Σε stock συχνότητες οι θερμοκρασίες είναι υποδειγματικές ενώ ακόμα και στις load ρυθμίσεις η ψύκτρα δεν παραδίδεται αμαχητί.Και εδώ οφείλουμε να αποδώσουμε δικαιοσύνη στην Noctua που κάνει αυτό που υπόσχεται όσο το TDP είναι εντός των normal τιμών, αλλά ιδρώνει τίμια την φανέλα ακόμα και όταν το wattage εκτραπεί προς τα επάνω. Το design για το αυξημένο pci-e και RAM clearance κρίθηκε άκρως θετικό και μακάρι να το δούμε και στις προτάσεις του ανταγωνισμού. Η απόδοση της Noctua NH-D9DX i4 3U κυμαίνεται σε πολύ καλά επίπεδα και σίγουρα δε θα απογοητεύσει όποιον την προτιμήσει.
Resultado del análisis: "Αν ο διαθέσιμός σας χώρος(ειδικά όσοι έχουν κάποιον Server) δεν μπορεί να φιλοξενήσει τίποτα παραπάνω από την Noctua NH-D9DX i4 3U και απαιτείτε ησυχία, απόδοση και premium components,θα δυσκολευτείτε πραγματικά να βρείτε μία πιο ολοκληρωμένη και ώριμη πρόταση." (Nasioulis Evangelos, ByTheWay.gr)
28.12.2014 // XtremeSystems.org
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NH-D9DX i4 3U Opinión

As you can see,the NH-D9DX i4 3U has no problem keeping temperatures low, beating out my comparison unit from Dynatron.
Resultado del análisis: "The NH-D9DX i4 3U has impressed me. It beat out the competition in my thermal tests, keeping temperatures incredibly low,even under load conditions." (Ambrosidou Nat, XtremeSystems.org)
02.12.2014 // mod-your-case.de
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NH-D9DX i4 3U Opinión

Mit dem NH-D9DX i4 3U erweitert Noctua seine DX-Serie um einen sehr leistungsstarken Kühler, welcher vor allem durch seine hohe Kompatibilität punkten kann. Dies betrifft nicht nur die Montage auf dem Mainboard, wo im Vergleich zu dem NH-U9DX i4 keine Gefahr besteht, dass der Kühler mit einem Speicherriegel kollidiert, sondern auch für die Bauhöhe des Kühlers. Noctua hat diese so weit geschrumpft, dass der Kühler sogar in ein Servergehäuse mit drei Höheneinheiten passt. Bei dem NH-U9DX i4 musste das Servergehäuse noch 4HE hoch sein. Die Kühlleistung kann sich durchaus sehen lassen, was auch der bis auf das Montagekit baugleiche NH-D9L kürzlich schon auf einem normalen Desktop-Mainboard unter Beweis stellte.
Resultado del análisis: Für den Einsatz in einem Server oder einer Workstation in der ein [LGA2011] Board aktuell verbaut ist oder in Zukunft einmal verbaut wird, können wir den neuen NH-D9DX i4 3U sehr empfehlen." (Patrick Seus, mod-your-case.de)

Manual de instalación (PDF)

Hoja de datos (PDF)

Preguntas frecuentes

Is the cooler compatible with all LGA1366 mainboards?

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?

How much clearance for RAM modules does the cooler offer on Narrow ILM LGA2011?

Is the cooler compatible with the LGA2011-3 socket?

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

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?

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

How should I clean my Noctua cooler?

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

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?

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

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

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

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?

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

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

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

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.

How much clearance for RAM modules does the cooler offer on Narrow ILM LGA2011?

On LGA2011 Narrow ILM platforms, the NH-D9DX i4 will usually overhang some of the RAM slots. If the cooler is oriented so that its fan blows perpendicular to the RAM slots, it offers 32mm clearance for RAM modules. If the cooler is oriented so that it blows parallel to the RAM slots, the fan needs to be moved upwards by 2mm in order to provide enough clearance for 18.75mm Very Low Profile DIMMs, thus increasing the total height of the cooler to 112mm. Please verify that you have sufficient space in your case if you want to use the NH-D9DX i4 in this configuration.

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.

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

Please refer to our socket compatibility chart.

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

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 SE-AM4
NH-U12S SE-AM4
NH-L12S
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
NH-D14
NH-D14 SE2011
NH-D15
NH-D15S
NH-D9L
NH-L12
NH-L9x65
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
NH-U12S
NH-U9S

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-U12DO A3
NH-U9 DO A3

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.

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.

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

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 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.

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.

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

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

4 pin fan header types

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

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

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



To resolve the issue, you can:

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

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

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

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

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

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

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

    4 pin fan header types

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

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

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


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

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

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

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

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

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

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