Noctua NH-P1 Passive CPU Cooler and LS-PWM Fan Launched for Semi-Fanless Systems

Noctua today released its much-anticipated NH-P1 CPU fanless CPU cooler as well as the optional Noctua NF-A12x25 LS-PWM 120mm fan. Custom-designed for fanless operation, the Noctua NH-P1 is capable of cooling modern high-end CPUs with low to moderate heat dissipation completely passively in enclosures with good natural convection. For further enhanced performance or semi-passive setups that only spin up their fans when necessary, the Noctua NH-P1 can be outfitted with a low-speed, ultra-quiet 120mm fan such as the new NF-A12x25 LS-PWM. Now that the NH-P1 is using a Torx-based locking mechanism, the NH-P1 is bundled with a Torx screwdriver.

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“The NH-P1 is our very first passive cooler, and it should be easy to see that we didn’t just take a regular heatsink and omit the fan. A lot of engineering work went into designing this unit for fanless operation from the ground up and we’re truly proud of the end result. In our completely fanless demo system, the NH-P1 cools an Intel Core i9-11900K running Prime95 at more than 3.6GHz – this is a lot of processing power and a whopping 125W kept in check with zero fan noise!”

says Roland Mossig (Noctua CEO)

The Noctua NH-P1 features thicker and more widely spaced fins to achieve both mass and minimal airflow resistance required in order to excel in natural convection cooling. In fully optimized fanless systems, the Noctua NH-P1 is capable of cooling high-end CPUs with low to moderate heat dissipation using natural convection only. This makes it ideal for powerful builds that have no moving parts and run absolutely silent. Topped off with the new, Torx-based SecuFirm2+ mounting system, Noctua’s award-winning NT-H2 thermal compound, and a 6-year manufacturer’s warranty, the NH-P1 is the ideal cornerstone for premium-grade fanless or semi-passive builds.

Watch Noctua’s Introduction Video below.

Building a Passive PC with the Noctua NH-P1

Noctua created a compatibility list to help builders in creating a passively cooled PC. The list includes recommended CPUs, Motherboards, and Cases. Visit the NH-P1 Compatibility List at Noctua. Watch Noctua’s build guide video below.

Noctua NF-A12x25 LS-PWM Fan

In addition to the NH-P1, Noctua released the optional NF-A12x25 LS-PWM 120mm fan, a low-speed, PWM-enabled variant of the award-winning NF-A12x25 that is ideal for enhancing the performance of the NH-P1 in semi-passive systems. At a maximum noise level of only 12.1dB(A), the NF-A12x25 LS-PWM is nearly inaudible but will still significantly boost the performance headroom of the cooler. As the fan stops at 0% PWM, it can easily be set up for semi-passive operation so that it will only spin up when necessary. This way, the system will work fanless most of the time but still provide the flexibility to make better use of the turbo modes of more powerful CPUs that require some extra airflow to be cooled adequately under full load conditions.

To learn more, please visit the links below.
Noctua NH-P1
Noctua NF-A12x25 LS-PWM

Pricing and Availability
The Noctua NH-P1 passive CPU cooler is now available on Amazon for $109.99. The Noctua NF-A12x25 LS-PWM ultra-quiet 120mm fan is also now available on Amazon for $29.90 (single-pack)