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Continuing the renowned legacy of Noctua’s award-winning NH-U9 series, the NH-U9S is a premium quality quiet CPU cooler in classic 9cm size. Its asymmetrical design with 5 heatpipes not only provides even better cooling performance than the previous generation but also improves compatibility: Thanks to its 95x95mm footprint, the NH-U9S clears the RAM and PCIe slots on all Intel and most AMD based mainboards, including µATX and ITX. Combined with its 125mm height, this makes the NH-U9S a highly versatile solution with excellent case, RAM and PCIe compatibility. The included NF-A9 premium fan supports automatic speed control via PWM for outstanding quietness of operation and a second, optional NF-A9 fan can be added for further improved performance in dual fan mode. Topped off with the trusted, pro-grade SecuFirm2™ multi-socket mounting system, Noctua’s proven NT-H1 thermal compound and full 6 years manufacturer’s warranty, the NH-U9S is a deluxe choice through and through.

Details
Award-winning NH-U series

Award-winning NH-U series

The NH-U9S stems from Noctua's award-winning NH-U9 series. First introduced in 2005, the NH-U series has become a standard choice for premium quality quiet CPU coolers and won more than 800 awards and recommendations from leading international hardware websites and magazines.
S version with better compatibility

S version with better compatibility

Like its bigger brothers NH-U12S and NH-U14S, the NH-U9S features a revised, slimmer layout: Whereas the NH-U9B SE2 was 120mm deep with its two stock fans, the NH-U9S is asymmetrically built and measures only 95mm with its single, more efficient NF-A9 fan, thus providing better performance and compatibility at the same time.
100% RAM compatibility

100% RAM compatibility

With its 95x95mm footprint, the NH-U9S does not overhang the RAM slots on current Intel and most AMD mainboards. This gives the user full access to the memory modules and guarantees 100% compatibility with tall heatspreaders or optional memory fans.*
100% compatibility with PCIe cards on mini-ITX

100% compatibility with PCIe cards on mini-ITX

Many Intel LGA115x based mini-ITX mainboards have the PCIe slot sitting right next to the 95x95mm socket zone. While larger coolers that exceed this zone are likely to block the PCIe slot, the 95x95xmm sized NH-U9S provides full compatibility with PCIe cards, be it on ATX, microATX or ITX.
NF-A9 premium fan

NF-A9 premium fan

The highly optimised features Noctua's proprietary AAO frame as well as sophisticated aerodynamic design measures such as Flow Acceleration Channels, which allows it to further improve the renowned efficiency of Noctua's previous 92mm models and contributes to the NH-U9S' superior cooling performance.
PWM support and Low-Noise Adaptor

PWM support and Low-Noise Adaptor

The NF-A9 92mm fan supplied with the NH-U9S supports PWM for convenient automatic speed control through the mainboard. In addition, the maximum fan speed can be reduced from 2000 to 1550rpm using the supplied Low-Noise Adaptor for even quieter operation.
Dual fan ready

Dual fan ready

The NH-U9S includes an extra set of fan mounting clips for users who want to achieve even better cooling performance by adding a second, optional NF-A9 PWM fan in order to create a push/pull setup. Using the y-cable supplied with the NF-A9 PWM retail fan, both fans can be connected to one CPU fan header.
SecuFirm2™ mounting system

SecuFirm2™ mounting system

Noctua's SecuFirm2™ mounting systems have become synonymous with quality, safety and ease of use. Supporting Intel LGA115x (LGA1150, LGA1151, LGA1155, LGA1156), LGA2011 (LGA2011-0 & LGA2011-3), LGA2066 and AMD (AM2+, AM3, AM3+, FM1, FM2, FM2+), the SecuFirm2™ mounting included with the NH-U9S guarantees perfect contact pressure and maximum convenience on all current sockets.
Compatibility with past and future sockets

Compatibility with past and future sockets

Complying with the open SecuFirm™ standard, the NH-U9S can be made compatible with the older LGA1366 and LGA775 sockets using the optional NM-I3 mounting kit, which is provided by Noctua free of charge. If technically possible, Noctua will also provide upgrade kits for future sockets.
NT-H1 thermal compound

NT-H1 thermal compound

Having received more than 100 awards and recommendations from hardware journalists around the world, Noctua's NT-H1 is a proven professional grade TIM solution that provides minimum thermal resistance, excellent ease of use and outstanding reliability.
6-year manufacturer’s warranty

6-year manufacturer’s warranty

Noctua products are renowned for their impeccable quality and outstanding longevity. Like all Noctua fans, the supplied NF-A9 features an MTTF rating of more than 150.000 hours and the entire NH-U9S package comes with a full 6-year manufacturer’s warranty.
*Some AMD mainboards violate the 96x114mm keep-out zone specified by AMD, so the NH-U9S can only be used with RAM modules of up to 30mm height on these boards. Please consult our compatibility list for details.
NH-U9S
Cooler Specification
Intel LGA2066, LGA2011-0 & LGA2011-3 (Square ILM), LGA1156, LGA1155, LGA1151, LGA1150 & AMD AM2, AM2+, AM3, AM3+, FM1, FM2, FM2+ (backplate required), AM4 with NM-AM4-UxS
Height (without fan)
125 mm
Width (without fan)
95 mm
Depth (without fan)
68 mm
Height (with fan)
125 mm
Width (with fan)
95 mm
Depth (with fan)
95 mm
Weight (without fan)
524 g
Weight (with fan/s)
618 g
Material
Copper (base and heat-pipes), aluminium (cooling fins), soldered joints & nickel plating
Max. TDP
see TDP guide
Fan compatibility
92x92x25
Scope of delivery
  • NF-A9 PWM premium fan
  • Low-Noise Adaptor (L.N.A.)
  • NT-H1 high-grade thermal compound
  • SecuFirm2™ Mounting Kit
  • Fan-clips for second NF-A9
  • Noctua Metal Case-Badge
Warranty
6 Years
FAN Specification
Bearing
Max. Rotational Speed (+/- 10%)
2000 RPM
Max. Rotational Speed with L.N.A. (+/- 10%)
1550 RPM
Min. Rotational Speed (PWM, +/-20%)
400 RPM
Max. Acoustical Noise
22,8 dB(A)
Max. Acoustical Noise with L.N.A.
16,3 dB(A)
Input Power
1,2 W
Voltage Range
12 V
MTTF
> 150.000 h
NH-U9S
NH-U9S
NH-U9S Video
SecuFirm2™ AMD installation (NM-AMB3)
SecuFirm2™ Intel LGA115x installation
SecuFirm2™ Intel LGA2011 installation
Video Reviews
The following video reviews have not been created by Noctua. Responsibility for the information and views expressed in the videos lies entirely with the authors.
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06.11.2017 // PCMasters.de
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NH-U9S Review

Der NH-U9S erreichte in unserem Test bei einer Wärmeverlustleistung von 175W einen minimalen thermischen Widerstand von 0,199 K/W. Dies ist ein durchaus passables Ergebnis und zeigt, dass Noctua nicht nur im High-End Bereich in der Lage ist durch Qualität eine gute Performance zu bieten. Auch bei 120W sieht das Bild ähnlich gut aus. Der Schalldruckpegel beträgt bei dieser Konfiguration (12V / 2000 U/min) 55,8 dB(A). Somit ist der CPU-Kühler in diesem Betriebspunkt schon deutlich hörbar. Allerdings bietet der Kühlkörper eine so gute Performance, dass der Lüfter problemlos mit einer niedrigeren Drehzahl betrieben werden kann ohne, dass man zu hohe Temperaturen erreicht. Vergleicht man den NH-U9S direkt mit dem bereits getesteten Alpenföhn Atlas schlägt sich der Noctua bei geringem Volumenstrom deutlich besser als der Kontrahent aus dem Allgäu.
Test verdict: "Wir können den Noctua NH-U9S jedem der einen kleinen Mittelklassekühler sucht empfehlen." (Tobias Mann, PCMasters.de)
17.09.2017 // Phoronix.com
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NH-U9S Review

Overall the Noctua heatsinks were working well for cooling this high-end Intel desktop processor, fit within 4U space requirements, and didn't hit any compatibility issues with the DDR4 DIMMs or other motherboard components.
Test verdict: "The Noctua NH-D9L and NH-D9S were both super easy to work with and did a phenomenal job at cooling the high-end Core i9 7900X processor." (Michael Larabel, Phoronix.com)
24.05.2017 // NasiLemakTech.com
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NH-U9S Review

It’s difficult to dismiss Noctua’s engineering magnificence. The Noctua NH-U9S is tiny, cute, a really yet powerful cooler with great compatibility. It’s easy to install, and I manage to get everything in without even removing my graphics card. The Noctua NH-U9S is really quiet even without using the included low-noise adapter. For the price of RM295 at Lazada or about $65 USD over at Amazon, the Noctua NH-U9S is an easy recommendation from me despite its high price. Its tiny form factor is obviously meant for those who either seek a clean aesthetic with a square cooler while easy accessibility to other parts of the motherboard (I’m one of them), or for mini-ITX builds with low temperatures. Also, there’s a 6-year warranty! Did I mention that the Noctua NH-U9S is really cute?
Test verdict: "It's tiny and cute yet performs really well while being silent." (Yap Kok Kee, NasiLemakTech.com)
23.05.2017 // Glob3trotters.com
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NH-U9S Review

Like the statement in the beginning in the review, Noctua are now synonyms with epic quality products and superb all around performance on all fronts. The NH-D9L does it all: great cooling and noise performance give it’s tiny size, epic included bundle of accessories, versatile, has zero clearance issues (when used with one fan), even has support for the big sockets monster CPUs and it is kinda’ unique since it is U3 compatible as well. I don’t even think it has a rival out there that can match all of these traits a this price level.
Test verdict: "The NH-D9L is one of the most complete and the best small form factor coolers that we have ever tested." (Alex Nistor, Glob3trotters.com)
18.05.2017 // DigitalPortal.sk
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NH-U9S Review

Ak sa zameriame na teploty a efektívnosť chladenia modelu NH-U9S, patrí do strednej triedy. Teplota procesora pri záťaži je v rozmedzí 55 až 78 stupňov, pričom hlučnosť sa podľa rýchlosti otáčok pohybuje v rozmedzí 25 až 40 dB. Noctua NH-U9S za svoju cenu ponúkne veľmi tichý chod, hoci v porovnaní s nedávno testovanými, drahšími a tiež väčšími modelmi mierne zaostáva v chladiacom výkone.
Test verdict: "Vzhľadom na svoje kompaktné rozmery podáva veľmi dobrý chladiaci výkon, vyžaduje jednoduchú inštaláciu, má antivibračné podložky a možnosť pohodlne nainštalovať pamäte aj pri väčšom profile operačnej pamäte." (Martin Klokner, DigitalPortal.sk)
11.12.2016 // Vmodtech.com
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NH-U9S Review

ทดสอบ โปรแกรม Prime95 ก็ทำได้ดีเยี่ยมครับ อุณหภูมิไอเดิล Idle อยู่ที่ 32องศาฯเท่านั้นครับ ฟูลโหลด Fulload อยู่เพียงแค่ 46องศาฯ เท่านั้นครับก็ยังเย็นยอดเยี่ยมครับกับการรันหนักๆทั้ง 4Core เกิน 10นาที ใช้งานกันได้ยาวๆแน่นอนครับ
Test verdict: "ก็มาถึงช่วงสุดท้ายกันแล้วนะครับสำหรับการทดสอบ NOCTUA NH-U9S ที่ วันนี้ทำผลงานได้ดีมากครับ กับฮีตซิงค์ระบายความร้อนซีพียูในขนาดกลางๆที่สร้างประสิทธิภาพได้ดีเยี่ยมกับการออกแบบที่ติดตั้งได้ง่ายรองรับทุกซ๊อกเก็ตที่มีอยู่ในปัจจุบันได้สบายๆใช้งานได้กับซีพียูขนาดเล็กไปจนถึงขนาดใหญ่ได้สบายๆครับ สำหรับท่านที่กังวลว่าจะชนแรม Ram หรือสล๊อต PCI-e ของการ์ดจอนั้นไม่เป็นปัญหาแน่นอนครับตามที่ผมได้ทดสอบให้ท่านได้เห็นไปแล้วครับไม่ชนอย่างแน่นอนอาจจะชิดบ้างเล็กน้อยแต่ก็ไม่น่าเกลียดอะไรมาก ในส่วนของดีไซน์ก็มาในแนว Tower CPU Cooler ที่เป็นฮีตซิงค์อลูมิเนียมสีเงินพร้อมฮีตไปป์ทั้ง 10ท่อสองฝั่งและยังสามารถติดตั้งพัดลมได้ทั้งสองฝั่งอัพเกรดกันได้ตามความต้องการ ในการทดสอบท่านก็ได้เห็นแล้วครับว่าสามารถใช้งานกับซีพียูระดับกลางๆไปหาสูงได้อย่างสบายๆกับผลทดสอบที่ออกมาก็ใกล้เคียงกับรุ่น NOCTUA NH-D9L จะต่างกันแค่ดีไซน์เท่านั้น ถือเป็นฮีตซิงค์ระบายความร้อนซีพียูที่น่าสนใจมากอีกรุ่นครับกับจุดเด่นที่รองรับการติดตั้งแรมแบบ 100เปอร์เซ็นพร้อมสล๊อต PCI-e ที่ไม่เป็นปัญหารวมไปถึงการติดตั้งที่ง่ายดายไม่ยุ่งยากพร้อมทั้งพัดลมประสิทธิภาพเยี่ยมที่ออกแบบมาอย่างเงียบกริบแทบไม่มีเสียงรบกวนเลยครับแม้จะฟูลโหลดกันยาวๆ เหมาะกับท่านที่กำลังมองหาฮีตซิงค์ระบายความร้อนซีพียูขนาดกลางๆประสิทธิภาพเยี่ยมกอรปกับเสียงรบกวนที่น้อยมากๆ NOCTUA NH-U9S CPU Cooler เป็นตัวเลือกที่น่าสนใจไม่น้อยเลยทีเดียว โดยราคาวางจำหน่ายอยู่ที่ประมาณ 22XXบาท สำหรับวันนี้ก็ต้องขอลาไปเพียงเท่านี้สวัสดีครับ" (Vmodtech.com)
26.11.2016 // GinjFo.com
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NH-U9S Review

Noctua propose avec son NH-U9S, un ventirad tour dédié aux configurations à petit facteur de forme. L’engin profite de dimensions réduites et d’une architecture asymétrique. Il fonctionne de base avec un unique ventilateur de 95 mm mais une seconde unité peut être mise en place pour accroitre ses performances.A l’usage, ses prouesses sont de qualité, surtout si la gestion PWM est de bonne tenue. Les performances sont là avec de très faibles nuisances sonores. Positionné aux alentours de 60 €, il vise le haut de gamme avec des prestations à la hauteur.
Test verdict: "Au final, ce NH-U9S a des qualités indéniables avec des prestations haut de gamme qui justifient un tarif conséquent. Il fait face à des besoins variés tandis que l’overclocking ou le gaming ne l’effraie pas. Une valeur sûre." (Jérôme Gianoli, GinjFo.com)
24.11.2016 // ArabHardware.net
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NH-U9S Review

لم يختلف الوضع كثيرا عن مراجعتنا السابقة. كما رأينا جودة التبريد فى أقصى حالات الضغط مع كسر السرعة والمميزات التى يأتى بها المُبرد. لقد جاء المُبرد NH-U9S بالمستوى المطلوب كخليفة لسسلة متميزة من المُبردات الهوائية التى مازالت شركة Noctua تؤكد صدارتها فى ذلك المجال. قدمت لنا الشركة المُبرد بالتصميم الغير متجانس ليقدم حلولاً جديدة للمستخدمين الراغبين فى اللوحات الرئيسية صغيرة الحجم, لتلغى ضرورة أستخدام المُبردات المائية معها وتفتح المجال للتبريد الهوائى ذات الفاعلية الأكبر.
Test verdict: "الحالية والمُستقبلية بالأضافة الى كفائة التبريد فى أقصى حالات الضغط وكسر السرعة, مع الأعتبار أنك لن تتكلف الكثير فأن المُبرد ثمنه لا يتعدى 60$ لتستمتع بكل تلك المميزات والأداء الجيد بتكلفة مُستحقة." (Mustafa Elmarghani, ArabHardware.net)
27.09.2016 // HardManiacos.com
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NH-U9S Review

Después de realizar ambas pruebas, comprobamos la eficacia del sistema de refrigeración que cumple con el cometido de enfriar rápidamente el procesador, si bien es cierto, hemos realizado el test con el procesador con un leve OC, con lo que estamos elevando la temperatura algo más de lo normal, aunque como podemos ver funciona bastante bien una vez concluido el test, enfriando rápidamente al procesador, además si le añadimos otro ventilador en el otro lado, mejoramos la capacidad de disipación del calor; así que creemos que este disipador está especialmente indicado para procesadores de gama media en cuanto a potencia, pudiendo implementar alguno de gama alta pero sin hacer OC, ya que necesitaría enfriar algo más la CPU cuando hacemos cargas de trabajo, evitando así un sobrecalentamiento del mismo.
Test verdict: "Desde Hardmaníacos lo recomendamos para todos aquellos que quieran una buena disipación en situaciones donde el espacio dentro de la caja no es del todo grande, además de poderlo situar en el socket con total comodidad sin que nos toque ningún componente, ya sea con uno o dos ventiladores." (Daniel Rey, HardManiacos.com)
26.09.2016 // RelaxedTech.com
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NH-U9S Review

While the NH-U9S isn't meant for a i7-3770K at 4.6Ghz, it will have no problems at keeping your CPU nice and cool at stock settings or with a slight overclock. The NH-U9S with one fan performed the same as the popular Cooler Master 212+ that has a single 120mm fan. That just shows how capable the NH-U9S is despite being a 92mm cooler.
Test verdict: "Noctua's NH-U9S is a huge improvement in every way compared to the previous generation NH-U9B SE2. Not only is it more efficient but it also performs much better while being much quieter. The additional heatpipe, the increased fin count and the NF-A9 PWM fan make a noticeable difference in both cooling and noise performance." (Henry Peshkepija, RelaxedTech.com)

Installation Manual (PDF)

Information Sheet (PDF)

FAQs

How big is the NH-U9S and how much clearance does it provide for RAM and mainboard heatsinks?

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?

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

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 sockets are supported or can be supported using upgrade kits?

Why doesn't the base of Noctua coolers have a polished, mirror like finish?

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

Should I take the cooler off before transporting my system?

Why doesn't the supplied backplate fit my LGA2066 / LGA2011 motherboard?

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

I can't open the socket due to the mounting bars!

Can the cooler be installed turned by 90° on AMD sockets?

Does the package include a backplate for AMD AM2(+)/AM3(+)/FM1/FM2(+)?

How to remove the base protection cover?

Does the mounting-system support LGA2011 based Xeon CPUs?

Why is the cooler’s contact surface slightly convex?

Is the cooler compatible with LGA775 and LGA1366?

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

Is the cooler compatible with the LGA2011-3 socket?

Is the cooler compatible with the LGA1151 socket?

How can I check whether my AMD mainboard has a standard AMD backplate that’s compatible with the SecuFirm2™ mounting system and how should I proceed with the installation?

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

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

How big is the NH-U9S and how much clearance does it provide for RAM and mainboard heatsinks?

Thanks to its 95x95mm footprint, the NH-U9S clears the RAM and mainboard heatsinks on all Intel and most AMD based mainboards, including µATX and ITX. Please refer to the following drawing for the exact measurements and clearance for RAM and chipset coolers:

D15

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-U14S TR4-SP3
NH-U12S TR4-SP3
NH-U9 TR4-SP3
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.

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

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

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

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

4 pin fan header types

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

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

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



To resolve the issue, you can:

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

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

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

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

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

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

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

    4 pin fan header types

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

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

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


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

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

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

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

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

Please refer to our socket compatibility chart.

Why doesn't the base of Noctua coolers have a polished, mirror like finish?

As most of today's PC enthusiasts use high-viscosity thermal compounds, the contact surface of Noctua coolers is optimised for use with this type of pastes. The micro-grooves at the contact surface ensure that high-viscosity thermal compounds are dispersed to a uniform thin layer across the whole contact area and that no air pockets remain between the cooler and the CPU. With a polished, mirror like surface, the risk of uneven dispersion is much higher. As too thick layers of thermal paste and air pockets drastically deteriorate heat transmission, the micro-grooves are is of vital importance to the overall cooling performance of Noctua coolers when used with today's high-viscosity thermal pastes.

My Intel -K series 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.

Should I take the cooler off before transporting my system?

Due to the low weight of the cooler, it is not necessary to take it off for transport.

Why doesn't the supplied backplate fit my LGA2066 / LGA2011 motherboard?

The supplied backplate is for LGA115x only and there is no backplate required for installation on LGA20xx (LGA2066, LGA2011-3, LGA2011-0). Please refer to the installation manual or our installation video for how to install the heatsink on LGA20xx.

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

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

I can't open the socket due to the mounting bars!

Please first loosen one of the two thumbscrews that hold the mounting bars in place. Then untighten the second screw so that you can swivel the mounting bar and open the socket. Depending on the position of the mounting bars, you may need to swivel both.

Open Socket

Open Socket

Can the cooler be installed turned by 90° on AMD sockets?

No. The new SecuFirm2™ mounting system for AM2, AM2+ and AM3 uses the same standardised hole spacing as the Intel system and thus allows for a much easier installation, but the cooler cannot be installed turned by 90°.

Does the package include a backplate for AMD AM2(+)/AM3(+)/FM1/FM2(+)?

No. As most AMD mainboards come with a stock backplate preinstalled, the cooler doesn’t include an AMD backplate. If your mainboard doesn’t have a backplate, please contact our support team at support@noctua.at.

amd backplate

How to remove the base protection cover?

Noctua CPU coolers are shipped with a plastic protection cover at the bottom side of the cooler, which protects the contact surface against scratches and other damage.

The base of Noctua CPU coolers is made from hard-wearing nickel plated copper, so there's nothing to worry about if you buy a Noctua cooler from second hand or if your cooler didn't come with a protection cover. Please proceed with the installation as explained in the manual.

You can simply remove the cover as shown below:

Base Protection Cover

Does the mounting-system support LGA2011 based Xeon CPUs?

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 Square ILM socket is mechanically identical to the LGA2011 socket for Core i7, so the mounting-system is fully compatible, but it is not compatible with Xeon mainboards that use the Narrow ILM:

Xeon Compatibility

Why is the cooler’s contact surface slightly convex?

As the Integrated Heat Spreaders (IHS) of today’s CPUs are slightly concave, the cooler’s contact surface has been deliberately designed to be slightly convex in order to ensure optimal contact. This way, more contact pressure will be applied at the centre of the IHS directly above the DIE, which results in better heat transfer and improved overall performance.

Is the cooler compatible with LGA775 and LGA1366?

The cooler does not support LGA775 and LGA1366 out of the box, but can be made compatible using the NM-I3 mounting kit. Noctua provides the NM-I3 kit free of charge if a proof of purchase (scan, photo or electronic copy of the invoice) of the cooler and an LGA775 or LGA1366 motherboard or CPU are presented. In order to install the cooler using the NM-I3 kit, please first unscrew the center screw of the original one-piece fastening bracket (you can reach through the fin stack using the long screw driver supplied with the cooler) and remove it. Then install the two fastening brackets of the NM-I3 kit as described in the NM-I3 installation manual.

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

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

Is 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 the cooler compatible with the LGA1151 socket?

Yes. Due to the heatsink mounting mechanism being identical on LGA1150, LGA1151, LGA1155 and LGA1156, the cooler also supports LGA1151.

How can I check whether my AMD mainboard has a standard AMD backplate that’s compatible with the SecuFirm2™ mounting system and how should I proceed with the installation?

The SecuFirm2™ mounting system requires a standard AMD backplate (either plastic or metal) with screw threads as shown on the pictures below. These backplates are pre-installed on the rear side of most AMD mainboards (see first picture below) and fixed to the retention module with four screws (see second picture below). If your retention module is fixed with plastic bolts instead of metal screws, please contact support@noctua.at in order to obtain an appropriate backplate.

In order to proceed with the installation of your Noctua cooler, please remove the four screws and the retention module but keep the backplate in place so that you can see the screw threads from the top side of the motherboard (see third picture below). You can then proceed with the installation of the SecuFirm2™ mounting kit as described in the manual (see fourth picture below).

AMD backplate

AMD backplate

AMD backplate

AMD backplate



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.

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.

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