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Noctua > 
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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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

Model

Brand
Noctua
Model
NH-L9a

Spec

Type
Fan & Heatsinks
Fan Size
92mm
Compatibility
Socket AM2 / AM2+ / AM3 / AM3+ / FM1 / FM2
Bearing Type
SSO2
RPM
Max. Rotational Speed (+/- 10%): 2500 RPM

Max. Rotational Speed with L.N.A. (+/- 10%): 1800 RPM

Min. Rotational Speed (PWM): 600 RPM
Air Flow
Max. Airflow: 57.5 m3/h

Max. Airflow with L.N.A.: 40.8 m3/h
Noise Level
Max. Acoustical Noise: 23.6 dB(A)

Max. Acoustical Noise with L.N.A.: 14.8 dB(A)
Power Connector
4 Pin
Heatsink Material
Copper (base and heat-pipes), aluminium (cooling fins), soldered joints & nickel plating

Physical Spec

Fan Dimensions
14mm x 92mm x 92mm (H x W x D)
Heatsink Dimensions
23mm x 114mm x 92mm (H x W x D)
Weight
0.86 lb (without Fan)

1.03 lb (with Fan)

Quick Info

Warranty

  • Limited Warranty period (parts): 6 years
  • Limited Warranty period (labor): 6 years


Customer Reviews of the Noctua NH-L9a

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  • Jonathan C.
  • 7/3/2014 8:55:01 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsGreat Cooler, well worth it!

Pros: This is a great cooler for an HTPC. I was worried that the stock AMD cooler wouldn't cut it, especially in a low profile case, stuffed in a cabinet. This was pretty easy to install, after watching a youtube video. It doesn't seem to have any problems keeping the CPU cool, and does a pretty good job under load. The fan is very quiet, even under load. I can't hear it over the case fans or the GPU fan.

Cons: None

Other Thoughts: I was worried at first that this would have clearance issues with my RAM, it is extremely low, and seemed almost too broad. However, it clears the ram slots by about 2 or 3 mm so there is just enough space. Definitely watch a youtube video on installing this before you do it. It seems like it requires 4 hands to install, but it just requires setting the cooler down on a table or something, and placing the motherboard and CPU on top of it.

System Specs:
CPU, AMD Athlon Trinity X4 750K
RAM, HyperX Fury Red Series, 8GB, DDR3-1866
GPU, XFX Radeon R7-250 Low Profile 1GB GDDR5
PSU, ThermalTake TR2-500W
Mobo, Gigabyte GA-F2A88XM-HD3
Case, nMediaPC 1080P

Did you find this review helpful? Yes No

  • Saad R.
  • 6/22/2014 2:32:35 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsYou get what you pay for, Noctua!

Pros: This product is exactly what you would need if you have a compact build. It's probably the best you can do for an aftermarket heatsink, low noise, good cooling.

I would recommend getting a different noctua heatsink if you're not worried about compact builds.

Cons: A little tricky to install, look it up. 5 minute video and you'll understand quite easily.

Did you find this review helpful? Yes No

  • Jacob S.
  • 6/18/2014 10:28:11 AM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsWorks Great

Pros: It is quite and low-profile. Does its job very well

..see other comments...

Cons: Tricky to install if you only have 2 hands.

Other Thoughts: ...too bad the CPU I put it on was DOA.

Did you find this review helpful? Yes No

  • DEBDEEP D.
  • 6/5/2014 6:36:12 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggs

Pros: Amazing little CPU cooler, fits perfectly on MSI A88x-Z45 board, and on top of A10-7850K R7 Amd APU. Doesn't block anything, Cooling is amazing, not as much as Cooler Master 212 Evo, or H100i, or H80i, but does the job, keep the temperature at 30-50C.

Cons: Installation requires users to see the manual before installing it. Kinda confusing but easy to install.

Did you find this review helpful? Yes No

  • Russell Z.
  • 6/4/2014 9:56:32 PM
  • Tech Level: Somewhat High
  • Ownership: less than 1 day
  • Verified Owner

5 out of 5 eggsKeeps Processor Cool!

Pros: Low Profile
Quiet
Keeps my CPU under 45 all the time

Cons: None

Other Thoughts: Packaged well.

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

  • Anonymous
  • 4/27/2014 10:30:16 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsBest CPU Fan for HTPC

Pros: The fan is super quiet and keeps temps cool (around 30) for an FX-6300, which ran around 60 before putting this bad boy on the CPU. Fit perfectly in my HTPC case.

Cons: None

Other Thoughts: Have recently been buying Noctua and will continue. Thank you Noctua!

Did you find this review helpful? Yes No

  • Joshua A.
  • 4/18/2014 8:19:01 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsExcellent for HTPC builds

Pros: Bought two of these for recent HTPC builds, no issues at all:
2x SILVERSTONE Milo ML05B
With a ASRock FM2A88X and a MSI A88XM-E35

- Respectable price, well worth the money, there are coolers out there of lesser quality for more.

- Extremely quiet, even on full speed.

- Comes with enough thermal paste to easily install more than two coolers, I saved the tube from the second box.

- Thermal paste seems to do a decent job, only time will tell.

- Comes with fan cable extenders, very thoughtful.

- Wide heatsink with good dispersion, leaves at least one RAM slot open on the smallest of m-ITX boards.

Cons: No Cons at all. Does what it was designed to do very well.

But it can be a bit difficult to mount, since you secure it from behind the motherboard and you have to watch the heatsink because it is usually close (but not touching) other components.

It is not hard, but novices could have a bit of trouble.
I have always found that the easiest way to do it is to place the cooler fan face down on a flat surface. I used the box it came in.
Flip the motherboard upside down and line up the holes as you lower it onto the heatsink.

As with anything, double check the dimensions specs and requirements for this, and verify it will work with your build.

Other Thoughts: This was my first Noctua CPU cooler, always stuck with brands I had experience with, but always wanted to try them out. Very happy to have another company to add to the list.

Very impressed with Noctura packaging, when you open the box, you feel like you bought a quality product that they care about. Its not just flopped in a thin box with plastic on the bottom like even some quality ones come in.

3 out of 3 people found this review helpful. Did you? Yes No

  • Joseph J.
  • 4/12/2014 3:00:02 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsQuality fan

Pros: Quiet
Fits in Silverstone ML03B case with room to spare
Comes with tons of cooling paste

Cons: A little expensive but very nice quality. You get what you pay for

Other Thoughts: Running a 95w Athlon Quad with the LNA and temps are in the low 40's, in a media cabinet. Not a sound out of this fan.

Did you find this review helpful? Yes No

  • Luke A.
  • 4/8/2014 10:38:50 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsWorks great for HTPC

Pros: With minimal effort, it works perfectly with the A10, Mini-ITX board and case I paired it with. Temps in the mid 70's (C) under heavy load.

Cons: I had to reverse the fan to draw air up through the heatsink (as the PSU for my case mounts directly over the CPU on the board and also pulls air in this direction). I had to use a dremel to remove some of the plastic from the screw holes as one side of the fan has recessed holes, and the other did not. Now both the CPU fan and PSU fan are moving air in the same direction, and this setup is working perfectly.

Other Thoughts: I'm not taking an egg's rating for the fan, but it would be nice if I hadn't had to whip out the Dremel to make this work in my case. (Case is a Lian-Li PC-Q11B, but many other mini-ITX cases also mount a PSU directly over the mobo as this one does)

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

  • Mark S.
  • 3/13/2014 1:19:28 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsexcellent fan

Pros: Silent. This thing is massive. Comes with all mounting equipment and quality thermal paste.

Cons: Doesn't bother me, but some people may find the colors a bit ugly.
For the performance, this thing is definitely worth it.

Other Thoughts: Price of the unit made me nervous. But after receiving the unit and installing it on the system, I have no regrets.

Some motherboards may have an issue with capacitors near the CPU. Thankfully my board did not. RAM modules are close, but do not touch.
System board is: ASRock FM2A75M-HD+

This is a low profile HTPC. The stock fan could be heard while sitting on the couch across the room. This fan, cannot be heard even with the side open and sitting next to it.

Did you find this review helpful? Yes No

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