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Your cart is empty.Product Description
The NH-L9a-AM4 is the latest, AM4-specific revision of Noctua’s award-winning NH-L9a low-profile CPU cooler for AMD Ryzen-based HTPCs and Small Form Factor (SFF) systems. At a height of only 37mm, the NH-L9a 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 AM4 socket makes installation child’s play and, thanks to the highly optimised NF-A9x14 92mm fan that supports fully automatic speed control via PWM, the NH-L9a-AM4 runs remarkably quietly. Topped off with Noctua’s renowned NT-H1 thermal compound, the NH-L9a-AM4 combines everything users have come to expect from Noctua’s larger coolers into a super-compact, premium-quality package for ITX and HTPC builds with Ryzen CPUs or APUs.
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-L9a-AM4 has a compact footprint that fully complies with the socket keep-out zones specified by AMD. This means that neither the heatsink nor the fan overhang the RAM, so the cooler provides easy access to the slots and is fully compatible with tall memory modules.
100% compatibility with PCIe cards on mini-ITX
Some AMD-based mini-ITX motherboards have the PCIe slot located close to the CPU socket zone. While larger coolers that exceed this zone may block the PCIe slot, the compact-sized NH-L9a-AM4 provides full compatibility with PCIe cards.
NF-A9x14 PWM premium fan
The highly optimised, award-winning 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-L9a-AM4 to stay remarkably quiet.
Measurements
- Height (without fan): 23 mm
- Width (without fan): 114 mm
- Depth (without fan): 92 mm
- Height (with fan): 37 mm
- Width (with fan): 114 mm
- Depth (with fan): 92 mm
- Weight (without fan): 390 g
- Weight (with fan): 465 g
Material
Copper (base and heat-pipes), aluminium (cooling fins), soldered joints & nickel plating
Cooler Specifications
Please Note:
The NH-L9a-AM4 is a highly compact, quiet low-profile cooler designed for use in small form factor cases and HTPC environments. While it provides first-rate performance in its class, it is not suitable for overclocking and or CPUs that create high heat loads.
Scope of delivery
- NF-A9x14 HS-PWM premium fan
- NA-RC7 Low-Noise Adaptor (L.N.A)
- NT-H1 high-grade thermal compound
- SecuFirm2 AM4 mounting kit
- Screws for 92x92x25mm fans
- Noctua Metal Case-Badge
New revision for Ryzen’s AM4 socket
Please note that being a dedicated special edition for AM4, the NH-L9a-AM4 comes with AM4 mounting hardware only. (For full socket compatibility, see table below)
Alejandro
Reviewed in Spain on December 30, 2024
Lo compré para un servidor que monté y funciona perfecto, no hace prácticamente nada de ruido y se nota la diferencia cuando pasas de usar un ventilador cualquiera a un Noctua. El perfil bajo vino muy bien para un servidor de 2U que monté pero posiblemente funcione también en un servidor 1U sin el ventilador encima (usando ventilación a lo largo del servidor).
Thomas
Reviewed in Germany on December 2, 2024
Ich habe den Noctua L9a mittlerweile schon dreimal für verschiedene Systeme gekauft und bin jedes Mal aufs Neue überzeugt. Als jemand, der früher bei einem Mitbewerber im Bereich Kühltechnik gearbeitet hat, kann ich sagen: Noctua setzt seit jeher den Standard. Die Qualität und die Leistung dieses Kühlers sind einfach herausragend.Der L9a ist besonders für kompakte Builds oder HTPCs ideal. Trotz seiner geringen Größe liefert er eine sehr gute Kühlleistung und ist dabei unglaublich leise. Der Einbau gestaltet sich dank der klaren Anleitung und der durchdachten Konstruktion problemlos – auch in engen Gehäusen.Was mich besonders beeindruckt, ist die leise Laufweise. Selbst bei längeren Belastungen bleibt der Kühler nahezu unhörbar. Als jemand, der viele Kühler verschiedener Hersteller getestet und eigene mitentwickelt hat, kann ich sagen, dass Noctua immer der Maßstab für hochwertige und zuverlässige Kühlungstechnologie war und auch heute noch ist.Fazit: Der Noctua L9a ist ein exzellenter Kühler, der in jeder Hinsicht überzeugt. Ich werde ihn auch in Zukunft wieder wählen und kann ihn jedem empfehlen, der auf Qualität, Leistung und geringe Lautstärke setzt!
Chris S.
Reviewed in the United States on January 28, 2024
Used this to replace the AMD supplied cooler in a small home media server. Seems to keep the CPU p,entry cool, but it is only a 65W AMD CPU.Pros: Super quiet. At the speed it normally runs I can’t even hear it and barely noticeable even at full speed. Low profile, plenty of clearance with the top of the case in this small server case. Plenty of cooling for this CPU and could probably handle COUs in the 125 watt range just fine as well.Cons: Nothing major but kind of awkward to install. You need to take the mother board out of the case since unlike other AMD coolers which mount from the top (though the stealth wraith that came with the COU dies need a new bottom plate under the mother board. This one screws in from the bottom. Not a big deal, especially if you’re just building things anyway. Unlike most coolers I’ve used, this one comes with a tube of heat transfer compound you need to apply rather than pre-applied to the cooler. Again, not a big deal, just something to be aware of.Overall, I like it and plan to buy another one for another server I’m building.
Slyder42
Reviewed in the United States on August 17, 2023
This well built tiny cooler does an amazing job at keeping my Ryzen 5 4600G at an awesome 40 C at idle. Just at silent mode it is great, at Normal mode which turns the fan speed up, cools it down to 37.5 C at idle. I can see the fan spin, but it is dead silent. This is in a mini ITX case with not too much room to spare. Wonderful product. I highly recommend it. Oh, and did I mention that this is SO EASY TO INSTALL? Backplate and 4 screws after applying thermal paste and then snug it up with a screwdriver for even pressure. A walk in the park.
arbi
Reviewed in Singapore on January 31, 2023
You get what you paid for. Price is much cheaper on Amazon compared to other sources
Minnesota buyer
Reviewed in the United States on September 14, 2022
I had pruchased a askrock deskmeet and used the stock cooler for my amd chip. Those that know this product it is a very very small system that can fit small graphics cards in them. Well my first processor fried under the heat. So I emailed them for solutions so I didnt do that again. They recommended this cooler. It lowered the temps 10* at idle and 20* when gaming. The results may be specific to this build but it works great for it!Wont comment on the noise as I run it 100% at all times and noise doesnt come through my headphones. Its better than the stock fan thats for sure.
The Opinionated Realist
Reviewed in the United States on February 23, 2020
If you’re looking to build in a super compact case, this fan won’t disappoint! In fact, it’s in a class of its own size wise and may be your only option if you have extremely low head room. It’s whisper quiet once setup and provides adequate, although not trend setting cooling.My daughter was excited to build her first PC with me and wanted to go for a Mac Mini look because they have those at school, and she thinks they look cool.This unit was easy to install, although, having to flip the motherboard over and go in with the screws from the opposite side from what I’m accustomed to threw me a little bit of a curve ball.Once setup, temps were in the 40s and lower 50s, which isn’t great, but it’s within the range of acceptable. Setting the performance to power saver mode brought temps down to upper 30s and 40s which is a good range to be in if you’re looking to extend the life of your CPU and keep electrostatic levels down.***Pros***• Extremely small and compact• Whisper quiet• Unbeatable life-span estimated arrival 150,000 hours***Cons***• A tad pricey for what it is, but there’s really nothing to compare it with at the moment• Only provides adequate cooling under normal operation. I wouldn’t dream of overclocking with this
MTG Scourge
Reviewed in the United States on April 14, 2020
Will it fit?This is obviously a very low profile cooler. But please do check out the dimensions. It fit even on my mini-ITX motherboard (that's TINY), but do have some oversight with how things are spaced on your motherboard. The heatsink is short, but fairly spread out.Temperature talk/overclocking:Firstly, let me address something at least I was concerned with while I was researching this. YES, you can lightly overclock your APU while using this, just test stuff out until you find something that works. And please do be careful, your computer is a sacred baby, go easy on it. Anyway, for example, I overclocked my Ryzen 3200g CPU to 4000mhz, and my GPU to 1500mhz. At least in games I play (GMOD at 1080p full settings, Payday 2 1080p medium), I get 60fps while also staying around 55 degrees Celcius. That's about 30 degrees BELOW what would be considered ALMOST dangerous for an APU.But what about idle/light workloads for non-gamers? IdleNoise and the noise adapter:The fan is much more quiet than any stock AMD cooler, and although it can be made even more quiet with the noise adapter, that's because the adapter slows the fan down. In essence, the adapter WILL affect cooling performance, but most often that's not even necessary. The fan is very quiet and cool on idle or with light workspace stuff.Installation:Installation is easily the only "flaw" this cooler had in my case (even then I still gave it five stars). To install it, I recommend taking the fan off the heatsink, place the heatsink upside down atop a well balanced, sturdy cylindrical object. Apply thermal paste to your CPU (or APU ; ) ), then with your motherboard upside down, line up the heatsink holes with the holes on your motherboard. Keep your motherboard pressed down and balanced on the heatsink. Then take that metal plate included and put the PLASTIC side on your motherboard's bottom. Keep it balanced, and lightly screw it in the with "cross" method. Once the heatsink is secure, flip your motherboard. Not which direction the fan blows the air. You can screw the fan back into the heatsink so that it will blow the majority of air where you want it to.Now, clearly, that's much more complicated, and arguably more risky than a standard installation. But with patience, top-of-the-line thermal paste, and some luck, it will be so worth it.Appearance:People say Noctua fans are ugly, but there's a charming, almost nostalgic look to the fan. It will hardly match any color scheme at all (for instance, mine is red and black, and this fan looks like the nerdy kid at a party), but there's an eccentric, signature feel to that.Extras:You get some extra fan screws and a cool little metal Noctua pin. This looks quite nice and adds character to a PC case. Mine is proudly located above my Ryzen 3 and Vega Graphics stickers.
Mas
Reviewed in France on July 13, 2019
Livraison rapide et professionnels, la marque paraît être de confiance, le ventilateur radiateur est vendu dans un coffret de qualité avec une pipette de pâte thermique, un adaptateur 4 pin plus gros, et tout le matériel nécessaire à l'installation, qui est simple et efficace. Grâce à ce produit j'ai remplacé le ventilateur d'origine de mon barebone A300. Il le refroidi plus efficacement et beaucoup moins bruyamment, je conseille fortement !
Everyday Consumer.
Reviewed in Canada on October 28, 2017
Exceeded my expectations for the low profile AM4 CPU heatsink, Noctua's customers service is second to none!I first bought the L9a heatsink and had Noctua sent me the AM4 kit free of charge because the at the time the L9a-AM4 wasn't not available yet, the AM4 kit for the L9a arrived at my door in a week but unfortunately I could not remove the bottom plate screws that held the older bracket in place in order to replace it with AM4 one without circling the screws (they were on too tight which is a good sign of build quality but a nightmare to remove in my case).I contacted Amazon and returned the L9a without hassle just as the L9a-AM4 was available on Amazon sold by Noctua and I ordered the L9a-AM4 as the replacement, the heatsink arrived very fast through Amazon's shipping service and I this time around had not trouble mounting the heatsink (which included Noctua excellent NT-H1 thermal compound) on my Ryzen CPU.I needed a low profile cooler which does not exceed 57mm in height and this heatsink did and exceeded the job being both efficient at cooling all the while being quiet on noise, currently I'm able to get a 3.9Ghz overclock on my Ryzen CPU with max temperatures of 70 degrees Celsius under full load and 60 - 65 degrees Celsius when gaming which is quite feat on it's own considering the size of the heatsink and the size of my mini ITX case (which is a Cooler Master Elite 110).All in all a great buy considering Noctua's great customer service, the cooling performance, form factor and noise this heatsink offers for AM4 adopters who need a low profile heatsink...no need to look elsewhere this heatsink is one of the very best.
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