The NH-P1 is Noctua’s first passive CPU cooler and has been custom-designed for fanless operation from the ground up: in enclosures with good natural convection, its six heatpipes and thick, widely spaced heatsink fins enable it to cool modern high-end CPUs with low to moderate heat dissipation completely passively (see setup guidelines and list of recommended cases). For further enhanced performance or semi-passive setups that only spin up their fans when necessary, the NH-P1 can be outfitted with a low-speed, ultra-quiet 120mm fan such as the NF-A12x25 LS-PWM. Topped off with the professional Torx-based SecuFirm2+ mounting system and Noctua’s award-winning NT-H2 thermal compound, the NH-P1 is the ideal cornerstone for premium-grade fanless or semi-passive builds.

Designed for passive cooling from the ground up
The NH-P1 isn’t just a regular heatsink without a fan: it has been designed for fanless operation from the ground up, featuring much thicker, much more widely spaced fins in order to achieve both the mass and the minimal airflow resistance that are required in order to excel in natural convection cooling.

Asymmetrical layout for optimal PCIe compatibility
As many current motherboards have the top PCIe x16 slot sitting close to the socket, bigger heatsinks tend to block it. Due to its asymmetrical layout, the fin-stack of the NH-P1 is offset towards the upper edge of the motherboard when installed in standard orientation. This allows it to clear the top PCIe x16 slot on most current µATX and ATX motherboards (see motherboard compatibility list).

100% RAM clearance on LGA1200 and AM4
Due to its asymmetric design, the NH-P1 does not overhang the RAM slots on Intel LGA1200, LGA115x and AMD AM4 based motherboards, which ensures easy access to the modules and 100% compatibility with tall heat-spreaders. On LGA2066, it overhangs the RAM slots on the left-hand side of the socket, so RAM modules should not exceed 45mm in height.

No noise, less dust, 100% fail-proof
Fanless cooling doesn’t only have the advantage of being completely silent: if you’re relying on natural convection only and don’t have case fans pushing air through a case, less dust will accumulate in filters or inside the system. Last but not least, with no moving parts such as fans or pumps that could possibly fail, the NH-P1 is as fail-proof as it can be.

Increased performance headroom with extra fan
The NH-P1 can be fitted with an extra 120mm fan such as the near inaudible NF-A12x25 LS-PWM in order to increase its maximum dissipation capacity significantly (see setup guidelines and CPU compatibility list): ideal for short spikes of higher heat loads or semi-passive systems that only start their fans when necessary!
Measurements
Height: 158 mm
Width: 154 mm
Depth: 152 mm
Weight: 1180 g
Socket compatibility
Intel LGA2066, LGA2011-0 & LGA2011-3 (Square ILM), LGA1200, LGA1156, LGA1155, LGA1151, LGA1150 & AMD AM2, AM2+, AM3, AM3+, FM1, FM2, FM2+ (backplate required), AM4

Cooler Specifications
Scope of delivery

NH-P1 heatsink
SecuFirm2+ multi-socket mounting system
NT-H2 high-grade thermal compound
NA-CW1 cleaning wipe
NM-SD1 screwdriver
Fan clips for optional 120mm fan

Please Note:
While the NH-P1 provides first-rate performance for a passive cooler, it is not suitable for overclocking or CPUs that create high heat loads. Please also note that the NH-P1 strictly requires either a fanless PC case with good natural convection, an open benchtable type setup or a PC case with fans in order to achieve its full performance. We offer a list of recommended cases for completely fanless systems using the NH-P1 on our website.