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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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  • Matt M.
  • 10/12/2014 3:22:25 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsGreat cooling, but...

Pros: Amazing fan. Truly is. Install was kind of a hassle but with how low-profile the fan is and how cool it keeps the CPU, it was worth it.

Cons: What's NOT worth it is the amount of noise this thing makes. The first few weeks I had it, it was noise-free. Then, as other commenters have said, it starts making this SUPER ANNOYING clicking noise. I can't stand it. I've tried taking it apart, repositioning it, nothing. Will go back to my stock fan until I can get something else.

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

  • Mahmoud S.
  • 10/9/2014 6:54:41 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

2 out of 5 eggsHas started making a rhythmic clicking noise after 4 months that is unbearable

Pros: It was quiet for the first month, now it makes a rhythmic clicking noise as if the blades of the fan are unbalanced and rubbing against some other part of the fan or heatsink. That said, the product seems to be high quality and the packaging made it feel premium

Cons: Now it makes a rhythmic clicking noise that motivates me to turn off my computer at night so I don't have to listen to it. Extremely frustrating. I just rebuilt my computer 4 months ago and I don't want to tear it apart again in a mini-ITX case just to replace the heatsink.

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

  • Scott T.
  • 9/25/2014 6:35:39 PM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsQuiet!

Pros: Super quiet and low profile. Fits in my tiny case.

Cons: none

Did you find this review helpful? Yes No

  • jimmy c.
  • 9/4/2014 6:27:22 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggscomputer tech

Pros: NOCTUA makes awesome heat sinks, however my amd build was getting to hot due to the new APU form factor for amd, i had to return the whole build and also return this heatsink =(((

Cons: too expensive, however gets the job done, a little hard to install if you dont know what your doing, need to remove the whole motherboard cpu panel just to install this

Other Thoughts: im staying away from AMD APU socket chips they over heat and doesnt deliver the performance they say

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

  • jimmy c.
  • 8/28/2014 12:21:27 AM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggscomputer tech

Pros: This is prob one of the best heat sinks if your thinking of building a htpc or even a small it's build


My cpu temp with stock heat sink was idle around 50-60 after using this heat sink and some artic silver 5 thermal paste It went down to idling at 30-35 impressive result highly recommed

Cons: It took a little while to setup for you need to remove the motherboards stock heatsink holder

Other Thoughts: My current build
A10 7850k
Gigabyte a88x WiFi mb
Corsair vengeance 8gb ram
Diypc gold mini cube (great tiny case)
Noctua NH-L9A
Corsair 550 watt full mod psu
Gigabyte r7 250 crossfire

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

  • DANIEL R.
  • 8/10/2014 10:32:50 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsGreat cooler

Pros: Low profile
Cools well
Easy to install
Would fit just about any board
Fan is reasonably quiet
Solid construction

Cons: Fan Color...i guess?

Other Thoughts: One of, if not "the" simplest aftermarket heatsinks i've ever installed. Can handle cooling hotter chips than it claims, in cramped quarters. Would not hesitate to buy another one of these for a low profile build

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

  • 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

1 out of 1 people found this review helpful. Did you? 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.

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

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Item#: N82E16835608030
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