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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) 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.
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 LGA2011-0 & LGA2011-3(Square ILM), LGA1156, LGA1155, LGA1151, LGA1150 & AMD AM2, AM2+, AM3, AM3+, FM1, FM2, FM2+ (backplate required)
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
Max. Acoustical Noise
22,8 dB(A)
Max. Acoustical Noise with L.N.A.
16,3 dB(A)
Voltage Range
12 V
MTTF
> 150.000 h
NH-U9S
NH-U9S
NH-U9S Video
SecuFirm2™ Intel LGA115x installation
SecuFirm2™ Intel LGA2011 installation
SecuFirm2™ AMD installation (NM-AMB3)
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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21.03.2015 // TweakTown.com
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NH-U9S Review

The fact that when converted over to CFM, that near 80 cubic meters of air turns into roughly 55CFM is impressive enough, but there is plenty more to be impressed with here. What's really impressive about the NH-U9S is that it uses a 92mm fan, it's able to cool the tower with ease, and it still offers plenty of room in the design for a dual fan setup (unless you are using LGA2011 with tall heat spreaders on the memory) to increase the efficiency of this design. You may be able to find more affordable solutions out there, but you are probably not going to find something so simultaneously silent, compact, and feature loaded. Comparable solutions probably won't come with this level of hardware, extra goodies, or a six-year warranty either. Looking at the NH-U9S for what it is, where it can go, and just how capable this compact the design is all lends to what we have been glowing about for this entire review. Not only is this a solid, more professional feeling cooler to use, but it fits almost anywhere (except in very small SFF cases and server racks), and stays unbelievably quiet for a cooler that uses a 92mm fan.
Test verdict: "The intent of the NH-U9S was to stay compact, quiet, and offer full access to everything around it, and we feel Noctua hit the nail on the head with this design." (Chad Sebring, TweakTown.com)
01.08.2015 // eTeknix.com
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NH-U9S Review

The build quality is stunning, but the real star of the show is one of the things that makes Noctua famous, their fans! Unless you’re going crazy and driving thundering overclocks through your system, this cooler runs virtually silent, despite not being passive. I’ve never heard a cooler this quiet and due to the limits of human hearing or without an acoustically silent room, I’ll likely never find one quieter than wasn’t passive.
Test verdict: "If I’m building a compact HTPC, workstation or office rig, this will be the cooler I choose. It looks great, it’s easy to install, it’s got exceptional build quality and it’s quieter than a mouse." (Peter Donnell, eTeknix.com)
29.01.2015 // ThinkComputers.org
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NH-U9S Review

Noctua always seems to impress. Each time they come out with a cooler it has a specific purpose and it always accomplishes that goal. For the NH-U9S their goal was to make a high-performance CPU cooler that would still fit in small systems. They were able to accomplish this. It is not often that you find a CPU cooler that guarantees that there will be no clearance issues with memory or PCI-Express cards, even on mini-ITX motherboards. When it comes to performance the NH-U9S performed at the top of the air coolers we have tested lately, even with the low noise adapter in use the cooler had very respectable performance. If you wanted to add even more performance you can add a second NF-A9 PWM fan, which we did and you can see those results on the previous page. During operation, even with two fans installed the cooler is not all that loud at all.
Test verdict: "If you are looking for a smaller air cooler for a compact system this cooler is a great choice!" (Bob Buskirk, ThinkComputers.org)
08.01.2015 // Modders-Inc.com
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NH-U9S Review

The NH-U9B SE2 comes with a pair of NF-B9 fans out of the box but the NH-U9S easily bests its thermal performance with its single NF-A9 fan. Granted, it is a faster 2000 RPM fan compared to the NF-B9’s 1600 RPM but when both fans were outfitted a 3500 RPM Enermax Twister Storm fan which has a static pressure of 11.125 mm-H2O, the NH-U9S pulls way ahead in performance with a 5C difference in stock and 7C difference in 4.2GHz FPU-only load. When the NH-U9S was provided an additional NF-A9 fan, it was able to outperform the larger Noctua NH-U12S under overclocked conditions.
Test verdict: "The NH-U9S takes the 92mm level of thermal performance beyond even further than the NH-U9B SE2 despite being bundled with only a single fan." (Ron Perillo, Modders-Inc.com)
07.01.2015 // SilentPCReview.com
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NH-U9S Review

The Noctua NH-U9S and NH-D9L are welcome additions to the Noctua line of high quality CPU coolers. They expand cooling options for Silent PC enthusiasts seeking smaller quiet systems. Both of these coolers are very close to the size of the long discontinued Scythe Ninja Mini, a unique short tower heatsink in its day. The 110mm and 125mm height clearance and small footprint of these coolers allows them to be used in much smaller cases than tower coolers normally allow. They fare well in comparison to both tower and top-down 120mm fan heatsinks, though they can't challenge the best tested on our LGA1155 platform. The improved performance with an additional fan in push-pull mode at very low noise levels makes these coolers even more versatile. The big plus for the PC builder is that they're almost as low profile as the bigger top-down fan heatsinks, but have the advantage of blowing the heat out towards a nearby back or top panel vent. The efficient evacuation of heat from the case is a key element in quiet PC cooling. We've already used the NH-D9L successfully in such a role in two recent small Gaming Build Guides — Quiet Mini-ITX Gaming Build Guide #2: NCASE M1 Edition and Journey to a Silent MicroATX Gamer. In both of these builds the only other cooler we know of that might have fulfilled the same role is the NH-U9S. The traditional Noctua strengths of excellent secure mounting, ease of installation and thoughtful accessories combine with the absence of any real competition from other brands to make them compelling.
Test verdict: "[I]f small and quiet is beautiful to you, these new 92mm fan tower coolers from Noctua are tough to beat." (Mike Chin, SilentPCReview.com)
17.12.2014 // PC-Max.de
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NH-U9S Review

Für Home-Theater-PCs, Small-Formfaktor-Konfigurationen oder auch kompakte Gaming-Rigs, bei denen das Hauptaugenmerk weniger auf einer High-End-CPU mit allzu hoher TDP liegt, können sowohl der NH-U9S als auch der NH-D9L mit ausgezeichneter Qualität und Verarbeitung punkten, wie wir es von Noctua gewohnt sind. Auch das Gesamtpaket mit einem anpassungsfreudigen PWM-Lüfter, der Möglichkeit einen zusätzlichen Fan problemlos zu integrieren und damit weitere Leistungsreserven auszuschöpfen sowie die Tatsache, dass vom Montagematerial bis hin zu kleinen Details wie einer - "gütig"- mangels anderen Wortes - dimensionierten Einheit Wärmeleitpaste oder dem hochwertigen Case-Badge keinerlei Kompromisse eingegangen wurden, zeichnen die beiden Kühler aus.
Test verdict: "Auch wenn es sich bei den beiden neuen Kühlern von Noctua um keine Modelle mit brachialer Cooling-Performance handelt, liegen die verzeichneten Temperaturen in einem Bereich, der einige deutlich ausladendere Konkurrenten überflügelt. Zudem muss sich vor Augen geführt werden, in welchen Einsatzgebieten die Verwendung eines derart kompakten CPU-Coolers sinnvoll ist. Die kleinen Würfel machen aufgrund ihrer großen Kompatibilität mit umliegenden Bauteilen des Systems und der besonders im Falle des NH-D9L geringen Bauhöhe vor allem in kompakten Systemen viel her." (William Zwingenberger, PC-Max.de)
11.12.2014 // AwardFabrik.de
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NH-U9S Review

Der NH-U9S ist unter 7V Lüfterspannung sehr leise, selbst mit einer Doppelbelüftung steigt der Wert auf maximal 36,1dB. Unter 12V sind es noch akzeptable 39,8 respektive 41,7dB bei zwei montierten Lüftern. In Anbetracht der hohen Umdrehungszahl von 2000 Umdrehungen in der Minute gehen auch diese Werte in Ordnung, zumal der Propeller ohne Nebengeräusche arbeitet und durch den beiliegenden L.N.A. auf maximal 1550 Umdrehungen gedrosselt werden kann. Die CPU erreicht maximal 37 bzw. 32°C, mit 12V Lüfterspannung sinkt die Temperatur auf 33 bzw. 31°C. Mit gesteigerter Spannung sind es unter 7V 58 respektive 52°C, bei 12V Lüfterspannung kann die Temperatur auf unter 50°C gehalten werden. Damit kann sich der NH-U9S stets einen Platz im Mittelfeld sichern. Neben der ausgewachsenen Kühlleistung und dem umfangreichen Zubehör samt 6 jähriger Garantie und potenter Serienbelüftung erhält der Käufer ein durchdachtes Kühlkonzept, was einen Preis von 55€ rechtfertigt.
Test verdict: "Noctua hat mit den kompakten Kühlern NH-U9S sowie NH-D9L zwei sehr potente Produkte auf den Markt geworfen, die sich, obwohl sie mit einer Grundfläche von nicht mal 10cm2 ideal für uATX und ITX Gaming Systeme geeignet sind, nicht vor den großen Konkurrenzprodukten – auch aus den eigenen Reihen – verstecken müssen." (Denis Emmerich, AwardFabrik.de)
09.12.2014 // NikKTech.com
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NH-U9S Review

[T]he fact that the NH-U9S managed to keep our system running even at heavy load is really very important and shows just what this very small CPU Cooler is capable of. Of course even the much cheaper Raijintek managed to keep our system running but the NH-U9S performed better. Now normally the 4.5 degrees Celsius between these two similarly sized coolers (the Raijintek Aidos is 136mm tall however) isn't something that I’d tell people to pay over twice as much for but the NH-U9S is also 5.3dBA quieter and for HTPC users that's a big deal. And then you have the top notch craftsmanship Noctua alone can offer and although the end user is paying for that (naturally) i think it's well worth the extra money especially since the NH-U9S is covered by a 6 year warranty.
Test verdict: "Noctua is amongst a handful of manufacturers that put quality and performance before cost for their products and their latest NH-U9S is one such bright example." (Nik Kastrantas, NikKTech.com)
01.12.2014 // Conseil Config
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NH-U9S Review

La qualité de fabrication est tout simplement excellente, le bundle est très complet, le montage est des plus facile et la compatibilité mémoire est complète. Du côté des performances et compte tenu de la taille du petit dernier c'est également du tout bon, que ce soit avec 1 ou 2 ventilateurs. Les nuisances sonores si branché en 5V ou PWM sont très bonnes, en 12V par contre le ventilateur se fera clairement entendre même si le bruit est plutôt neutre.
Test verdict: "Le Noctua NH-U9S est un excellent choix lors du montage d'une configuration PC mini-ITX ou encore un HTPC de très petite taille, du fait de ses très bonnes performances pour sa taille." (Christian Marchini, Conseil Config)
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)

Installation Manual (PDF)

Information Sheet (PDF)

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

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

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

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

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

My 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.

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