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The NH-D15 G2 is the further improved second generation of Noctua’s iconic NH-D15. With its state-of-the-art, speed-offset NF-A14x25r G2 PWM fans, eight heatpipes and asymmetrical fin-stacks that have been carefully fine-tuned to work in tandem with the new fans, it achieves even better quiet cooling performance than its award-winning predecessor. As such, the G2 version is a true flagship model that continues the legacy of the original NH-D15 by pushing the boundaries of air cooling and rivalling the efficiency of many all-in-one (AIO) water cooling solutions. Optimised for strongly concave CPUs, the specialised High Base Convexity (HBC) version provides excellent contact quality on Intel LGA1700 processors that are used with full ILM pressure or have become permanently deformed in long-term use. In addition to its further improved performance, the NH-D15 G2 also offers enhanced compatibility thanks to an offset construction that allows it to clear the top PCIe x16 slot on most current motherboards. Last but not least, the G2 version has been upgraded to the Torx®-based SecuFirm2+™ multi-socket mounting system with included NM-SD1 screwdriver as well as to Noctua’s superior NT-H2 thermal compound. In short, the NH-D15 G2 has been further refined in virtually all respects from the heatsink and the fans all the way down to the mounting, thermal paste and accessory package. Topped off with Noctua’s trusted 6-year manufacturer’s warranty, it’s the new number one choice for customers who demand the best of the best in air cooling.

Taking platform-specific optimisation to a new level, the NH-D15 G2 is available in a regular, standard version and two specialised variants:

The regular NH-D15 G2 is our standard recommendation. It uses the same medium base convexity as most other Noctua heatsinks, which makes it a perfect all-rounder that provides optimal results on AM5 with the included offset mounting and on LGA1700 CPUs when utilising the included NM-ISW1 shim washers (or so-called contact frames) to reduce CPU deformation from ILM pressure.
The HBC (High Base Convexity) variant is specifically optimised for LGA1700 processors that are used with full ILM pressure or have become permanently deformed in long-term use, providing excellent contact quality despite the CPU’s concave shape.
The LBC (Low Base Convexity) variant is specifically optimised for relatively flat CPUs. As such, it offers excellent contact quality on AMD AM5 even without the offset mounting as well as on other comparably flat CPUs (e.g. AM4, LGA2066, LGA2011, lapped or custom flat heatspreaders, etc.).

For further information on the three versions and heatsink contact quality, please see this FAQ and our technical backgrounds article with detailed performance data:

For further information on performance characteristics as well as the fan speed offset of the NH-D15 G2, please refer to these articles:

Product Details

Notes and warnings

Taking platform-specific optimisation to a new level, the NH-D15 G2 is available in a regular, standard version and two specialised variants:

The regular NH-D15 G2 is our standard recommendation. It uses the same medium base convexity as most other Noctua heatsinks, which makes it a perfect all-rounder that provides optimal results on AM5 with the included offset mounting and on LGA1700 CPUs when utilising the included NM-ISW1 shim washers (or so-called contact frames) to reduce CPU deformation from ILM pressure.
The HBC (High Base Convexity) variant is specifically optimised for LGA1700 processors that are used with full ILM pressure or have become permanently deformed in long-term use, providing excellent contact quality despite the CPU’s concave shape.
The LBC (Low Base Convexity) variant is specifically optimised for relatively flat CPUs. As such, it offers excellent contact quality on AMD AM5 even without the offset mounting as well as on other comparably flat CPUs (e.g. AM4, LGA2066, LGA2011, lapped or custom flat heatspreaders, etc.).

For further information on the three versions and heatsink contact quality, please see this FAQ and our technical backgrounds article with detailed performance data:

For further information on performance characteristics as well as the fan speed offset of the NH-D15 G2, please refer to these articles:

Cooler Specification

Socket compatibility

AMD AM5, AM4 and Intel LGA1851, LGA1700, LGA1200, LGA1156, LGA1155, LGA1151, LGA1150

Height (without fan)

168 mm

Width (without fan)

150 mm

Depth (without fan)

127 mm

Weight (without fan)

1180 g

Height (with fan)

168 mm

Width (with fan)

150 mm

Depth (with fan)

152 mm

Weight (with fan)

1525 g

Material

Copper (base and heat-pipes), aluminium (cooling fins), soldered joints & nickel plating

NSPR

228

Fan compatibility

140x150x25 (with 120mm mounting holes), 140x140x25 (with 120mm mounting holes), 120x120x25

Scope of delivery

2x NF-A14x25r G2 PWM premium fan
2x NA-RC16 Low-Noise Adaptor (L.N.A.)
NA-YC1 4-pin PWM splitter cable
NT-H2 high-grade thermal compound
NA-TPG1 thermal paste guard for AM5
NA-CW1 cleaning wipe
SecuFirm2+™ multi-socket mounting system
NM-SD1 Torx® T20 screwdriver
Noctua metal case-badge

Warranty

6 years

FAN Specification

Model

2x NF-A14x25r G2 PWM

Bearing

SSO2

Max. rotational speed (+/- 10%)

1500 RPM

Max. rotational speed with L.N.A. (+/- 10%)

1250 RPM

Max. airflow

155.6 m³/h

Max. airflow with L.N.A.

127.1 m³/h

Max. acoustical noise

24.8 dB(A)

Max. acoustical noise with L.N.A.

19.7 dB(A)

Blade geometry

Progressive-Bend impeller

Acoustical noise

24.8 dB(A)

Input power (max.)

2.28 W

Voltage range

12 V

MTTF

> 150.000 h

Noctua NH-D15 G2 HBC High Base Convexity for Intel LGA1700 Dual Tower 140mm Fan Air CPU Cooler

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