Testing Results, Low Fan Speed (7 Volts)

Switching things up a bit, let's next take a look at cooler performance with the NH-U12A fans taken down to 7 Volts.

Core Temperature, Constant Thermal Load (Low Fan Speed)

With the speed of its fans reduced down to 800 RPM, the NH-U12A becomes virtually inaudible to a user that sits one meter away from it. The thermal performance still comes close to 140 mm coolers, with the NH-U12A being unable to match it but landing near them, all while outperforming most other similarly-sized cooling solutions.

Average Thermal Resistance

A closer look at the charts reveals that the NH-U12A actually is rather efficient with the handling of very heavy thermal loads even with reduced airflow. This suggests that the cooler will be able to handle overclocked processors without the thermal control of the motherboard having to shoot the speed of the fans too high, maintaining low noise levels.

Fan Speed (7 Volts)

Noise level

Testing Results, Maximum Fan Speed (12 Volts) Thermal Resistance VS Sound Pressure Level
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  • Tunnah - Thursday, July 11, 2019 - link

    I was on board until the price. I paid £60 for my NH-D14 and expected a price bump considering it's now 8 years old, but nearly double the price is a bit too far. Reply
  • npz - Thursday, July 11, 2019 - link

    EACH fan alone is $30. So $60 out of the $100 of the MSRP accounts just for the fans and they are the best fans on the market. Reply
  • npz - Thursday, July 11, 2019 - link

    It's also more compact than the NH-D14 while having 1 more heatpipe (7 vs 6) Reply
  • sonny73n - Friday, July 12, 2019 - link

    Who gives a damn about 1 more heatpipes. These are buried under a nickel plated plate anyway. Reply
  • tamalero - Friday, July 12, 2019 - link

    It helps transfer heat you clown. Reply
  • SaolDan - Friday, July 12, 2019 - link

    This made me laugh in a crowded plane Reply
  • npz - Thursday, July 11, 2019 - link

    I don't think you'd get anything since the dual plates of the NH-D14/D15 have more surface area but if you're running the fans at high speed, you can replace the front fan with the NF-A12x25 Reply
  • Cellar Door - Thursday, July 11, 2019 - link

    I've been using a NH-D14 with a single fan for 10 years now. NH-A15 for last 5 years - and I have no intention to replace it.

    The upfront cost might seem high but when you realize a cooler like this will last you 10+ years, it is easily justifiable.
    Reply
  • Skeptical123 - Friday, July 12, 2019 - link

    It's a piece of metal... The only real reason a DIY style air cooler "dies" is because mounting hardware/form factor is out of date. The fan is another story but simple getting hit in shipping or ambient dust are big factors and are very replace able. Reply
  • sonny73n - Friday, July 12, 2019 - link

    $30 for a 12mm fan? I can make a fan out of scraps and sell it to you for $3000. Mine will be 100 times better than this Noctua fan, based on price. Reply

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