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Item#: N82E16835608030

Noctua NH-L9a 92mm SSO2 CPU Cooler

  • Max. Rotational Speed (+/- 10%): 2500 RPM Max. Rotational Speed with L.N.A. (+/- 10%): 1800 RPM Min. Rotational Speed (PWM): 600 RPM
  • Max. Airflow: 57.5 m3/h Max. Airflow with L.N.A.: 40.8 m3/h

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

The NH-L9a is a premium quality quiet CPU cooler for AMD based HTPCs and Small Form Factor systems. At a super-low profile of only 37mm, the NH-L9a is ideal for extremely slim cases and due to its 92x114mm footprint, it provides excellent compatibility with tall RAM modules and other components on mini-ITX mainboards. The custom designed SecuFirm2™ mounting system for AM3+/FM1/FM2/FM2+ makes installation a child's play and thanks to the highly optimised NF-A9x14 premium fan that supports fully automatic speed control via PWM, the NH-L9a runs remarkably quiet. Topped off with Noctua's renowned NT-H1 thermal compound, the NH-L9a fuses everything users have come to expect from Noctua's larger coolers into a super-compact package for slim HTPC systems.

Learn more about the Noctua NH-L9a

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 6 years
  • Limited Warranty period (labor): 6 years
  • Read full details

Customer Reviews of the Noctua NH-L9a

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  • Daniel M.
  • 11/26/2015 7:48:41 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

3 out of 5 eggsExcellent while it lasted...

Pros: I used this CPU cooler in a living room computer. It's not a low profile HTPC, but I thought I might move it to a smaller case later. My main concern was that it was quiet, and in that respect, this cooler is great. It silently cools the computer with no problems. I use Noctua fans almost exclusively, so this was no surprise. This machine is an AMD A6, so it's not making a ton of heat anyway. The cooler fit the AMD FM1 mount with no problems or additional hardware required.

Cons: However...after less than 1 year, the fan has failed. It still runs, but requires help to get it started.

Other Thoughts: I'm not limiting the fan speed in any way, so it should be able to start at boot. The fan, heatsink, and the computer have been dusted/cleaned. I'm thinking the bearing is shot, which is not typical of Noctua. I was going to replace the fan with the exact part (Noctua NF-A9x14) but I think maybe I'll get something that spins a little faster to prevent the same failure.

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  • Andrew V.
  • 9/20/2015 5:11:35 AM
  • Tech Level: Average
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsNoctua NH-L9a on A10-7850k

Pros: This fan can keep the APU(A10-7850k) cool. The only time you can hear the fan is when the RPMs go up during gaming. The low profile fan was small enough to fit into M350 Universal Mini-ITX enclosure with room for an SSD as well. Running the APU at 95watts TDP.

Cons: Price.The color may be ugly for some. Requires some installation patience. some will need to mount the back plate that comes for some Motherboards.

Other Thoughts: Running the APU at 65/45 watts will make this fan almost silent even during gaming. Its hard to hear the fan at all during general use. highly recommend for a mini ITX build where space is an issue. Well worth the price.

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  • Scott B.
  • 8/8/2015 4:15:30 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

3 out of 5 eggsPossible bad egg in the bunch

Pros: Very quiet, seems like high quality material, great fan for the price.

Cons: 6 months after purchase, the fan stopped working. If I give it a nudge, it will start but only up to 200 rpm which will not keep anything cooled.

Other Thoughts: Would like to try them again since a lot of colleagues recommend them but since this fan died and another case fan from noctua is starting to make noises like the ball bearing is failing, thinking about spending my money elsewhere.

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  • jonathan R.
  • 7/29/2015 1:31:18 AM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year

1 out of 5 eggsi agree with other reviewer this product is garbage

Pros: low profile and that's it period.

i gave this heatsink an honest run thrue and after all this time heres what i think.

Cons: i wondered why my temps were not improving over the stock Intel heatsink on my core i3-4150.

guess what turns out the bottom of this noctua heatsink that i recieved is garbage. no joke their was a visable curve protruding from the bottom of the heatsink when held up to a light source witch was making only a tiny part of the metal come in contact with the cpu i was so dissapointed that this company would even let this pass QA department. i had to sit their and sand the hell out of this sink to even get it flush with the rest of the base. they either dont check these for QA or the engineer's dont know what lapping is and why they shouldn't have to force that on customers.

turns out the sanding was a pointless effort because a few months down the road the fan began a loud rattling sound wich means the bearings are shot. replacing the fan was a joke i looked here on newegg for the nocuta 92mm fan i figured i would just buy a replacement after i solved the lapping issue i LOL so hard they wanted $26.99 for the exact same fan this thing comes with thats half the price for this heatsink package i said forget that, and bought a Hyper 212 evo.

Other Thoughts: i should have just bought a cooler master hyper 212 evo for 34$ instead i figured i would go out on a limb to try another company's product that all i hear is good things about.....psh the limb i choose snapped hard.....wont be climbing the Noctua tree ever again.

0 out of 5 people found this review helpful. Did you? Yes No

  • Peter K.
  • 5/22/2015 9:04:25 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsDisappointed

Pros: Low profile

Cons: Not reliable. Fan failed after 8 months of usage.

Other Thoughts: Save your money and get something with better quality fans.

0 out of 7 people found this review helpful. Did you? Yes No

  • Patrick B.
  • 3/17/2015 3:29:21 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsVery Impressed

Pros: I purchased this due to all the other reviews and am very happy I did. The machine it went into is placed in my living room as a Plex/Steam box.

After building the PC - with it sitting right next to me, I couldn't hear the fan unless I tried. In it's place on my TV stand, I can't hear it what so ever.

Temps are exactly what I expected for my CPU, in fact they seem to be even better than what review sites were reporting. On idle I get about 35c and under load, playing games on Steam or using Plex, I've seen it reach about 44-45c.

Very impressed with this cooler and highly recommend it.

Cons: The only downside, and I knew about it beforehand after reading reviews and watching install videos, is the installation on AMD mobo's. You have to remove the back plate and attach this with the fan laying on the table. Easy enough to do, but still not the biggest fan of doing so. Not enough to knock an egg since it works and do so very well.

Other Thoughts: Considering this is priced competitively, at least when I bought it, I can't imagine another cooler.

2 out of 2 people found this review helpful. Did you? Yes No

  • James T.
  • 3/14/2015 11:09:03 PM
  • Tech Level: High
  • Ownership: less than 1 day

5 out of 5 eggsGreat!!!

Pros: No Issues At All.

Cons: None.

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  • Lance H.
  • 2/3/2015 8:48:02 AM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsExcellent Customer Service

Pros: Near silent at first

Cons: Early model, in a vertical case, started squeaking after several weeks. That may have been fixed with design changes.

Other Thoughts: After initially rating this a 2, I'm upgrading to a 4: I contacted the manufacturer who said the fan design had been updated. They mailed me a replacement fan from Austria, it's quiet again. Excellent customer service from manufacturer.

I have purchased more Noctua coolers since this.

4 out of 4 people found this review helpful. Did you? Yes No

  • Alexander J.
  • 1/30/2015 11:03:45 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsGreat Form Factor Heatsink

Pros: The fan is indeed quiet and the heat-sink dissipates Heat Very well.

I am Running a AMD A10-7850K Radeon R7.
Keep in mind this processor is running 12 cores and Maintaining a Idle temp of 32C and Load temp of 45C.

The Heat-sink itself is very sturdy and shows no give.

Mounting system is Solid and works but....

Cons: I to had the same noise problem with the fan. I actually fixed this issue by removing the fan blades from the unit and applied lithium gear grease to the rotor pole inside of the unit which returned the fan back to a silent state. If you do get this product keep in mind that the blades of the fan CAN BE REMOVED. All you do is face the sticked towards you and push against the fan blades.

Mounting system could be better. If you intend on buying this product keep in mind the mounting system requires that you screw the heat sink in from the back. Now if your motherboard tray has a opening for heat-sink mounting then it shouldn't be a big problem but since some Form factor cases out there have no openings for heat-sinks it may require you to remove the motherboard.

Other Thoughts: For a 50 Dollar price tag, I am a bit disappointed with the fact that the fan made noise with in the first 3-4 weeks of use. The problem was easily fixed by doing a bit of work but the mounting system can be a pain. Other then that, if you are willing to go through the process of mounting this heat sink and eventually fixing the fan noise problem, This is a Great heat-sink. I does what it is intended to do, but it exceeds most other Heat-sinks.

1 out of 1 people found this review helpful. Did you? Yes No

  • Simon D.
  • 1/17/2015 11:31:50 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

1 out of 5 eggsGreat heatsink, very bad fan

Pros: The heatsink is great and do the job very well.

Cons: The fan started to make a loud noise after 2 weeks. I contacted Noctua who sent me a new fan. Same problem after 2 weeks with the new fan. I contacted Noctua again but I lost faith in them. I'll order a 92mm fan to replace the Noctua one.

1 out of 1 people found this review helpful. Did you? Yes No

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Item#: N82E16835608030
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