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Noctua > 
Item#: N82E16835608043

Noctua NH-U12DXi4 120mm SSO2 CPU Cooler

  • 1500 RPM +/-10% (MAX)
  • 1200 RPM +/-10% w/ L.N.A
  • 300 RPM +/-10% (PWM)
  • 93.4 m3/h w/o L.N.A
  • 74.3 m3/h w/ L.N.A
  • Aluminum
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Learn more about the Noctua NH-U12DXi4




Fan & Heatsinks
Fan Size
Intel Xeon LGA 1366 ( Square ILM and Narrow ILM), LGA1356, LGA 1366 ( with Xeon backplat)
Bearing Type
1500 RPM +/-10% (MAX)
1200 RPM +/-10% w/ L.N.A
300 RPM +/-10% (PWM)
Air Flow
93.4 m3/h w/o L.N.A
74.3 m3/h w/ L.N.A
Noise Level
22.4 dB(A) w/o L.N.A
18.6 dB(A) w/ L.N.A
Heatsink Material

Physical Spec

Fan Dimensions
4.72" x 4.72" x 0.98"
1.27 lbs. Without Fan
1.7 lbs. With Fan


Scope of Delivery

NH-U12DXi4 Heatsink

NF-F12 PWM Premium Fan

Low-Noise-Adapter ( L.N.A)

Anti-vibration pads and Fan-Clips for 2nd NF-F12 Fan

NT-H1 High-grade Thermal Compound

Quick Info


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

Customer Reviews of the Noctua NH-U12DXi4

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  • Chris C.
  • 7/15/2014 6:57:57 PM
  • Tech Level: Somewhat High
  • Ownership: less than 1 day
  • Verified Owner

5 out of 5 eggsWow!

Pros: Excellent performance!
Rock solid mounting.
Very high quality materials.
Very high quality construction.

Cons: kit required for some 1366 boards

Other Thoughts: Amazing difference in performance between Cooler Master and this. CM is a toy, this is equipment. I was unsure of the CM unit after mounting because in wobbled on the CPU and did not cut the CPU temps enough for the size. So I bought this and the difference was clear. Very well made of nice materials and performance so good I had issues with the CPU being too cold and fan speeds too low. The CM gave an average of 47-49C, the Noctua runs 39C at 400 RPM. I kept getting CPU fan warnings so I had to set the BIOS to ignore. It's quieter than the case fans. I missed the fact that this doesn't mount on all 1366 boards without a kit. I have an old board that doesn't have the right bracket. I scavenged parts off the CM fan and made it work but plan ahead and make sure. I wasted $25 on the CM and this is twice the cost but 10X better. Don't be me, buy right he first time.

Did you find this review helpful? Yes No

  • Daniel D.
  • 2/19/2014 11:54:41 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsWorks as expected

Pros: This cooler is like all the other Noctua coolers I own. All I can say is it works as expected and is very quiet even under high load. effortlessly cooling an E5-2620 in a very tight enclosure. Also the included LGA2011 (Narrow) is what I needed on Supermicro X9SRL-F

Cons: None

Other Thoughts: The only issue isn't really one at all but worth mention. There is plenty of clearance in standard high ram. However, with the narrow LGA 2011 there is no clearance for heat spreaders on memory.

Did you find this review helpful? Yes No

  • TEDDY P.
  • 2/2/2014 6:32:17 PM
  • Tech Level: Average
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsNOCTUA NH-U2XI4

Pros: Nice cooler. Very quiet. Fits good on MBD X8DAH-0.
Temperatures are around 33c. Small size cooler, with big efficiency.


Other Thoughts: I have two of this coolers running on a dual CPU set up (XEON 2.93 GHZ). Temps are low 33c and steady. Coolers are slim, but they have about 56 fins. Very quiet. 12" Case fans are loud comparing with this coolers. Recommended to everybody that wants a cooler build. THEY DO NOT ENTERFERE WITH MEMORY SLOTS, SO NO WORRIES ABOUT USING MEMORY WITH HEAT SPREDERS. I got the second set for a new build.

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

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Noctua > 
Item#: N82E16835608043
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