Key features
It’s been a long time since we’ve seen the prototype, but the first passive cooler from Noctua with the designation NH-P1 was finally introduced this week. Its design is rather different from usual coolers as the main priority is maximization of heat dissipation to its surroundings. And to increase its efficiency, a new A12x25 LS-PWM fan with very quiet operation was also introduced as complementary accessory for semi-passive cooling.
Summary and conclusion
As I mentioned above, this article cannot be taken as an in-depth review, but rather as first impression and preliminary testing. I plan to publish another article about this cooler later, where I will focus on the efficiency of the cooler according to various configurations of air flow inside the model PC case.
Anyway, Noctua NH-P1 is a very interesting piece of hardware. Even in the fully passive mode, it manages to efficiently dissipate waste heat corresponding to today’s mid-range processors. The addition of the new NF-A12x25 LS-PWM fan will even further increase its efficiency without dramatically increasing the noise.
Even at maximum speed, this fan is very quiet and it offers the possibility of semi-passive operation if the PWM signal drops below 20%. Thus it’s an ideal combination for all enthusiasts of extremely quiet setups, which is further supported by the surprisingly acceptable dimensions of this cooler. It shouldn’t present a major obstacle to compatibility with conventional ATX cases.
But before you buy this cooler, I really recommend that you thoroughly get familiar with tips for passively cooled computer setups, and also visit the Noctua website for compatibility lists forprocessors, motherboards and PC cases. The only flaw of this cooler is its price, however it’s also a rather niche product for a very specific use case. Moreover, there is basically no real alternative to this cooler on the market.
| Noctua NH-P1 |
| + Good performance even in passive mode |
| + Perfect build quality |
| + Accessories galore |
| + 6-year warranty |
| - High price |
