Noctua NH-U12S Review

 Noctua NH-U12S Review 



They say that bigger isn’t always better.  For the most part I’d have to disagree.  As men we know size matters and that bigger is very often better.  Whether it be screen size, memory size, SSD capacity, Overclock, or for that matter even the size of our….Ahem.  Yes well, what we’re trying to say here is that we’re pretty much hard wired into a perpetual game of top trumps with all the numbers in our life.  Where size does matter though, and where the above rule starts to gain credence, is when size causes a problem, when it causes a conflict, where it gets in the way of other things, or where it’s too large to fit.  Imagine that, having one so big that it’s too big to fit…Get your minds out of the gutter, I am of course talking about heatsinks here, and some being too large to fit in your case, fouling your manly large RAM, obscuring your first PCI slot,  or stopping the door from shutting on your super slim case.

Enter then the Noctua NH-U12S at just 158mm tall and a mere 45mm deep without fans there’s no way it’s going to get in the way of your RAM, and unless you’re into uber thin Mid towers you’re going to be hard pushed to find a case that’s too narrow for it.

The sample we have for review comes packaged with a pair of focussed airflow NF-F12 fans, which should make for some interesting temps.  Time and testing will tell.


Technical Specification  

Socket compatibility

Intel LGA2011 (Square   ILM), LGA1156, LGA1155, LGA1150 & AMD AM2, AM2+, AM3, AM3+, FM1, FM2   (backplate   required)

Height (without fan)

158 mm

Width (without fan)

125 mm

Depth (without fan)

45 mm

Height (with fan)

158 mm

Width (with fan)

125 mm

Depth (with fan)

71 mm

Weight (without fan)

580 g

Weight (with fan)

755 g


Copper (base and heat-pipes), aluminium (cooling fins), soldered joints & nickel plating

Fan compatibility


Scope of Delivery

NF-F12 PWM   premium fan

Low-Noise Adaptor (L.N.A.)

NT-H1 high-grade thermal compound

SecuFirm2™ Mounting Kit

Anti-vibration pads and fan-clips for second NF-F12

Noctua Metal Case-Badge


6 Years

Fan specifications



Noctua NF-F12 PWM



Max. Rotational Speed (+/- 10%)

1500 RPM

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

1200 RPM

Min. Rotational Speed (PWM)

300 RPM

Max. Airflow

93,4 m³/h

Max. Airflow with L.N.A.

74,3 m³/h

Max. Acoustical Noise

22,4 dB(A)

Max. Acoustical Noise with L.N.A.

18,6 dB(A)

Input Power

0,6 W

Voltage Range

12 V


> 150.000 h