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The NH-L9i-17xx is the latest revision of Noctua’s award-winning NH-L9i low-profile CPU cooler for Intel LGA1700 or LGA1851 based HTPCs and Small Form Factor (SFF) systems. At a height of only 37mm, the NH-L9i is ideal for extremely slim cases, and due to its small footprint, it provides 100% RAM and PCIe compatibility as well as easy access to near-socket connectors even on tightly packed mini-ITX motherboards. The custom-designed SecuFirm2 mounting system for the LGA1700 and LGA1851 sockets makes installation a breeze, and thanks to the highly optimised NF-A9x14 92mm fan that supports fully automatic speed control via PWM, the NH-L9i-17xx runs remarkably quietly. Topped off with Noctua’s renowned NT-H1 thermal compound, the NH-L9i-17xx combines everything users have come to expect from Noctua’s larger coolers into a super-compact, premium-quality package for mini-ITX and HTPC builds with Intel LGA1700 or LGA1851 CPUs.
37mm low profile
Due to the slim 23mm heatsink and the NF-A9x14 low profile fan that measures only 14mm in thickness, the NH-L9 stands a mere 37mm tall, which makes it ideal for use in compact HTPCs or Small Form Factor cases that offer minimum clearance for CPU coolers.
100% RAM compatibility
The NH-L9i has a 95x95mm footprint that complies exactly with the Intel LGA1700/LGA1851 socket keep-out zone. This means that it won't cause issues with VRM heatsinks and doesn't overhang the RAM slots, so it's fully compatible with tall memory modules.
100% compatibility with PCIe cards on mini-ITX
Some mini-ITX motherboards have the PCIe slot sitting close to the 95x95mm socket zone. While larger coolers that exceed this zone are likely to block the PCIe slot, the 95x95mm sized NH-L9i provides full compatibility with PCIe cards.
NF-A9x14 PWM premium fan
The highly optimised NF-A9x14 premium fan features Noctua's proprietary AAO frame as well as sophisticated aerodynamic design measures. Supporting PWM for fully automatic speed control, the NF-A9x14 allows the NH-L9i to stay remarkably quiet.
Measurements
- Height (without fan) 23 mm
- Width (without fan) 95 mm
- Depth (without fan) 95 mm
- Height (with fan) 37 mm
- Width (with fan) 95 mm
- Depth (with fan) 95 mm
- Weight (without fan) 345 g
- Weight (with fan) 420 g
Material
Copper (base and heat-pipes), aluminium (cooling fins), soldered joints & nickel plating
Cooler Specifications
Please Note:
The NH-L9i is a highly compact, quiet low-profile cooler. While it provides first-rate performance in its class, it is not suitable for overclocking and or CPUs that create high heat loads. Please consult our CPU compatibility list to find out whether the NH-L9i is recommended for your CPU.
Scope of delivery
- NF-A9x14 HS-PWM premium fan
- NA-RC7 Low-Noise Adaptor (L.N.A)
- NT-H1 high-grade thermal compound
- SecuFirm2 mounting kit
- Screws for 92x92x25mm fans
- Noctua Metal Case-Badge
New revision for Intel’s LGA1700 and LGA1851 sockets
Since the original NH-L9i for LGA1200 and LGA115x has received more than 200 awards and recommendations from international hardware websites and magazines, the new 17xx revision builds on the same proven heatsink design to provide excellent low-profile cooling performance for LGA1700/LGA1851 CPUs.
James B.
Reviewed in Canada on February 20, 2025
Great productTo bad it was ruined by an incompetent driver who can’t follow directions and left it in the hammering down rain
Justin
Reviewed in the United States on February 15, 2025
excellent quiet and low profile heatsink/fan combo. using it on an i5-based itx NAS build in a small form factor case, keeps temps low and stable.
Zach Landis
Reviewed in the United States on January 30, 2025
Very nice feel to it, but unfortunately it didn't fit in my build so I had to return.
Paul D Stefani
Reviewed in the United Kingdom on September 19, 2024
mr cool ... nice and compact ... very pleased
ハルタオーナー
Reviewed in Japan on March 16, 2024
i7-14700 および MSI B760 Gaming Plus マザーボードを使用する新しいシステム用に購入されました。 取り付けるのは難しい作業でした。 付属のネジで取り付けるには、私が快適に感じられる以上に大きな力が必要でした。 個人的にはネジが2mmほど短い気がしますが、力を入れて斜めに取り付けるとちょうど良く収まりました。パフォーマンスに関しては、Noctua ファンと CPU クーラーが最高です。 静かで、非常に効率的に冷却されます。 比較すると、最初に取り付けるのに苦労したため、Intel 純正クーラーを試してみました。 騒音が大きすぎて、十分な冷却ができませんでした。 温度は常に90度前後で、ファンはヘアドライヤーのようでした。
Samuel Aguiar
Reviewed in Spain on December 23, 2024
Review del Producto: Noctua NH-L9i-17xx, Disipador de CPU de Bajo PerfilDespués de instalar y probar el Noctua NH-L9i-17xx, puedo confirmar que este pequeño disipador está a la altura de la reputación de Noctua en cuanto a calidad y rendimiento. Aquí tienes mi experiencia:Diseño y ConstrucciónEl NH-L9i-17xx está diseñado específicamente para sistemas compactos que utilizan procesadores Intel de la serie 1700. Su diseño de bajo perfil (apenas 37 mm de altura) es perfecto para gabinetes mini-ITX o de formato reducido. El acabado es impecable, con las clásicas aspas de ventilador color marrón y beige de Noctua, que siempre transmiten durabilidad y calidad.Rendimiento TérmicoPara un disipador tan compacto, su capacidad de enfriamiento es impresionante. He utilizado este disipador con un Intel Core i5 en un sistema ITX, y las temperaturas se mantuvieron estables incluso bajo cargas moderadas. No es para overclocking ni CPUs de alto TDP, pero cumple perfectamente con procesadores de gama media o configuraciones eficientes en energía.Nivel de RuidoEl ventilador NF-A9x14 PWM es extremadamente silencioso, incluso a velocidades altas. Apenas se escucha durante el uso diario, lo que lo hace ideal para entornos de trabajo o gaming donde el ruido debe ser mínimo.InstalaciónLa instalación es sencilla gracias al sistema de montaje SecuFirm2, característico de Noctua. Es compatible exclusivamente con la plataforma LGA 1700, lo que lo convierte en una opción específica pero perfectamente ajustada para este socket. Además, incluye pasta térmica NT-H1, lo que facilita aún más el proceso.CompatibilidadEste disipador está diseñado para sistemas donde el espacio es crítico. Sin embargo, debido a su tamaño compacto, hay que tener en cuenta que está limitado a CPUs con un TDP máximo de 65W, por lo que no es adecuado para procesadores más exigentes.Relación Calidad-PrecioAunque puede parecer caro para su tamaño, el NH-L9i-17xx ofrece un excelente equilibrio entre rendimiento, calidad y silencio. Si estás construyendo un sistema compacto y no necesitas enfriamiento de alta gama, esta es una inversión que vale la pena.Veredicto FinalEl Noctua NH-L9i-17xx es el disipador ideal para sistemas compactos basados en Intel LGA 1700. Ofrece un rendimiento sólido, una construcción de alta calidad y una operación prácticamente silenciosa, todo en un paquete compacto y fácil de instalar.Calificación: 4.7/5Ideal para: Sistemas ITX, PCs de formato reducido y usuarios que priorizan el silencio y el diseño compacto.
Customer
Reviewed in the United States on October 31, 2024
Effective little cooler as long as you keep your expectations reasonable. Noctua makes good stuff but it's not magic. It's not gonna keep a14900K from thermal throttling during Blender renders. But it's a great little cooler if you're building in an ITX case with something like an i5 or other low TDP LGA 1700 CPU. I use it on a 13500 in an ITX media server and temps and fan noise are never an issue, it runs in the mid 30s at idle, and I think the hottest I've seen the CPU get is 64C while transcoding video. This is my favorite of the very small coolers, if you need a cooler that is this small I would say get this one but if you can fit a larger cooler I would suggest doing so.
Aaron
Reviewed in the United States on January 19, 2024
If your case has a side panel that lets air through right lined up with the fan on this, I highly recommend also getting the $13 official Noctua fan duct kit, NA-FT1. If you have too much clearance for that kit, look at the Noctua 65mm height cooler instead of this one.I've built 4 computers to date in the InWin Chopin. The first one was using the 200watt version of the original Chopin, and the last 3 were all in the newer Chopin Max. All were using AsRock motherboards, with Intel Core series LGA1700 CPUs.First: Chopin 200w, Intel 12400 cooled by its included Laminar RM1, Asrock B660m-ITX acSecond: Chopin Max, Intel 12100 cooled by its included Laminar RM1, Asrock Z690m-ITX axThird and Fourth: Chopin Max, Intel 12400 cooled by NHL9I with Na-ft1 duct kit, Asrock B660m-ITX acThe first unit just barely fits the Laminar RM1, a gentle pressing on the side panel will grind the fan.The second one, the Chopin Max increases the CPU clearance a little, so that grinding issue is gone, reduces the noise a bit as well, less turbulence of the blades against the mesh. We can't really compare temps as the CPU in the second one is lower powered than the first, but that's not what this review is about anyway.The third and fourth were built simultaneously with the exact same configuration to each other. The temps of the third and fourth units, using ducted Nhl9i-17xx is about 10 degrees cooler than the Laminar RM1 achieved, with significantly less noise at max load and almost no noise at all at idle.Note that I did CPUZ stress tests for my numbers. I watched CPU temps and fan speeds. Initially, I ran one of the new Chopin Max machines without the NA-FT1 duct kit and the other one with that kit installed. The unducted one under the stress test held the same 154.8f temp, but by running the Noctua fan at max 2550 rpm speed whereas the ducted one was running it at about 2270 rpm.When I forced the Noctuas to run at 80% speed, the ducted one held the temp at 158f after about half an hour, with the unducted one settling in at 170f.Once I installed the duct kit on the second machine, both had identical temps, down to less than a degree, so the duct kit is proven.Note that so far as I can tell, in the Chopin case, NHL9i is not all that much cooler than the stock Laminar RM1 included with the non-k Intel LGA1700 CPUs. Ducted, however, it's way better, and it's far quieter. It's quieter even without the duct kit, but with it, it's a whole new ball game
danny
Reviewed in Singapore on June 7, 2023
Noctua is still the best despite competition coming from other makes or brands.
EmbeddedFlyer
Reviewed in the United States on July 24, 2022
Ignore the few oddball reviews claiming this cooler is inferior or no better than the OEM stock Intel 12th cooler. They did something wrong. Under identical conditions The Noctua NH-L9i results in temps around 10 degrees cooler than the Intel cooler AND with much less noise. With a six core i5-12400F running various CPU stress tests I couldn't get the CPU over 66C vs 75C with the Intel cooler. With a 8+4 core i7-12700F the Noctua kept it under 85C vs 95C with the stock cooler. I tested with the motherboard in open air under identical conditions. Your temps might vary with your case cooling but the fact is the Noctua outperforms the stock Intel cooler and is quieter while doing it. And that should always hold true.The Intel cooler has a round contact area that only makes contact with perhaps 60%-70% of the rectangular CPU heat spreader. That's just brain dead on the part of Intel. The Noctua cooler makes contact with the entire heat spreader which helps it remove significantly more heat. Further Intel puts stupid cosmetic plastic trim on their cooler which likely only further inhibits airflow. It's classic marketing department form over function.The difference in noise is huge. At any RPM the Noctua is much quieter. Even at full speed (a still low 2400 rpm) the Noctua is impressively quiet and it's subjectively a much more pleasant noise than the jet spooling up for take off noise of the Intel cooler at 100%.The NH-L9i also fit my very cramped mini-ITX Gigabyte Z690 motherboard beautifully. You can also get the Noctua fan shroud kit for some applications so it can pull cool outside air giving it another huge advantage over the Intel and other coolers.The Noctua also provides downward airflow that gets directed over the motherboard chipset, SSD, VRM, RAM, and other parts that really benefit from and are designed around a downflow OEM style heatsink airflow.Those complaining about the mounting tabs not being flush with the motherboard don't understand the need to tension the heatsink to the CPU. The whole idea is to use the mounting tabs as springs to create the perfect tension for the best CPU contact without over-stressing anything. It's a very smart design that creates the right amount of contact force when the arms "bottom out" against the motherboard.Overall this is a great cooler for a great many applications. If you want to run an over clocked K series CPU you likely need a bigger cooler. But for compact small form factor builds, this is the best cooler I know of and genuinely shames Intel's provided cooler.
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