Review: Noctua NH-U12S Redux

Noctua NH-U12S Redux manufacture's image
Noctua NH-U12S Redux
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CPU Cooler Details:
Metric Value
Brand Noctua
Cooler Name NH-U12S Redux
Fan 1 Name NF-P12 redux-1700 PWM
Stated dBa 25.1
Number of Heat Pipes 4
Full Size (WxHxD): 125x158x45 mm
Radiator (WxHxD) 124x108x45 mm
Air Cooler Rating: Install 8 (Easy)
Manufacture's Link NH-U12S Redux Manufacture's Link

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Fan Details for CPU Cooler:
Metric Fan 1
Fan Name NF-P12 redux-1700 PWM
Fan Location Front
Fan Flow Type Push
CPU Only Fan No
Max RPM 1700
Fan Size (mm) 120
Fan Width (mm) 25
Manufacture Rated dBa 25.1
Manufactured Rated Airflow (cmf) 70.7
Manufactured Rated Air Pressure (h2o) 2.8
Number Of Pins 4
PWM Fan Yes
Bearing Type SSO
Watts (W) 1.08
Current (A) 0.09
Max Volts 12.00

Design and Aesthetics:

The NH-U12S redux features a single-tower design with a slim aluminum heatsink and a single 120mm NF-P12 redux-1700 PWM fan. This design ensures efficient heat dissipation while maintaining compatibility with various system configurations, including those with tall RAM modules. Aesthetically, the NH-U12S redux adopts a more neutral gray color scheme, providing a sleek and modern appearance that complements various build themes.

Install Notes:

The NH-U12S Redux features Noctua's SecuFirm2 mounting system, ensuring compatibility with a wide range of Intel and AMD sockets and offering a straightforward installation process, typical of Noctua coolers. Clear instructions, high-quality components, and a tube of their premium NT-H1 thermal compound make it an easy and user-friendly experience, even for beginners. The cooler uses the original AMD backplate for AMD installations. However, one downside is that the cooler may stick to your CPU, and due to the screw setup, you can't slide the cooler off the CPU like with some other brands. Overall, the NH-U12S Redux offers a relatively hassle-free installation process.

Cooling Performance:

The performance of the NH-U12S redux is solid, thanks to its four heat pipes that efficiently transfer heat away from the CPU and into the large fin array of the heatsink. It is suitable for a wide range of processors, from mainstream to some high-end models. While it may not offer the same level of cooling performance as the original NH-U12S, the NH-U12S redux still provides reliable cooling under various workloads and can handle moderate levels of overclocking.

Noise Performance:

The NH-U12S redux maintains Noctua's commitment to quiet operation. The included 120mm NF-P12 redux-1700 PWM fan is designed for optimal airflow and low noise levels. Noctua fans are known for their excellent acoustic performance, and the NH-U12S redux upholds this reputation. Users can expect quiet cooling even during normal computer use.


The Noctua NH-U12S redux is an affordable and efficient air cooler that offers good cooling capabilities and quiet operation. Its single-tower design and slim profile make it compatible with various system configurations, while its more neutral color scheme adds a modern touch. For users seeking a cost-effective cooling solution without compromising on quality, the NH-U12S redux is an excellent choice.

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AMD Ryzen 7 5800X

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CPU Details:
Metric Value
Brand AMD
Cooler Name Ryzen 7 5800X
CPU Socket AM4
Cores 8
Thread Count 16
Max Temperature 90°C
Base Clock 3.8GHz
Max Boost Clock 4.7GHz
Cache L1
Cache L2 4MB
Cache L3 32MB
Processor Power Base 105W
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