The NH-D9DX i4 stands only 110mm tall. This is 15mm less than previous 4U compliant 9cm DX-line coolers and allows the NH-D9DX i4 to also fit 3U cases - ideal for noise-sensitive 3U applications in fields such as audio or video processing!
100% RAM compatibility
With its 95x95mm footprint, the NH-D9DX i4 does not overhang the RAM slots on LGA2011 Square ILM, LGA1366 and LGA1356. This gives the user full access to the memory modules and guarantees 100% compatibility with tall heatspreaders or optional memory fans.*
NF-A9 premium fan
The highly optimised features Noctua's proprietary AAO frame as well as sophisticated aerodynamic design measures such as Flow Acceleration Channels, which allows it to further improve the renowned efficiency of Noctua's previous 92mm models and contributes to the NH-D9DX i4' superior cooling performance.
PWM support and Low-Noise Adaptor
The NF-A9 92mm fan supplied with the NH-D9DX i4 supports PWM for convenient automatic speed control through the motherboard. In addition, the maximum fan speed can be reduced from 2000 to 1550rpm using the supplied Low-Noise Adaptor for even quieter operation.
Dual fan ready
The NH-D9DX i4 includes an extra set of fan mounting clips for users who want to achieve even better cooling performance by adding a second, optional NF-A9 to the front fin stack. Using the y-cable supplied with the NF-A9 PWM retail fan, both fans can be connected to one CPU fan header.**
SecuFirm2™ mounting system
Noctua's SecuFirm2™ mounting systems have become synonymous with quality, safety and ease of use. Supporting Intel's LGA2011 (both Square and Narrow ILM), LGA2066, LGA1356 and LGA1366 Xeon platforms, the SecuFirm2™ mounting included with the NH-D9DX i4 guarantees perfect contact pressure and maximum convenience on all sockets.
NT-H1 thermal compound
Having received more than 100 awards and recommendations from hardware journalists around the world, Noctua's NT-H1 is a proven professional grade TIM solution that provides minimum thermal resistance, excellent ease of use and outstanding reliability.
6-year manufacturer’s warranty
Noctua products are renowned for their impeccable quality and outstanding longevity. Like all Noctua fans, the supplied NF-A9 features an MTTF rating of more than 150.000 hours and the entire NH-D9DX i4 package comes with a full 6-year manufacturer’s warranty.
*For LGA2011 Narrow ILM, please see this FAQ.
**The optional front fan will sit above the RAM and depending on the height of the RAM modules, the fan may have to be moved up so far that the total height of the cooler exceeds 110mm. As a result, the cooler may no longer fit some 3U cases. In order to guarantee full 3U compatibility in dual fan mode, please use low profile memory with up to 22mm height.
Information Sheet (PDF)
Noctua's DX line of coolers has become a default choice in high performance quiet cooling solutions for Intel Xeon CPUs. The i4 revision supports LGA2011 (both Square ILM and Narrow ILM), LGA1356 and LGA1366 based Xeon platforms and the new D9 model provides better performance and better compatibility than previous 9cm versions: Thanks to its 95x95mm footprint and reduced 110mm height, the NH-D9DX i4 is fully 3U compliant and clears the RAM slots on LGA2011 Square ILM and LGA13xx. At the same time, the dual tower design and the new NF-A9 PWM guarantee further improved quiet cooling performance. Fitted with the professional SecuFirm2™ mounting system and bundled with Noctua's industrial-grade NT-H1 thermal compound, the NH-D9DX i4 3U forms a complete premium quality package for quietly cooling Xeon based workstations and servers.
The following video reviews have not been created by Noctua. Responsibility for the information and views expressed in the videos lies entirely with the authors.
Model : Noctua NF-A9 PWM
Bearing : SSO2
Max. Rotational Speed (+/- 10%) : 2000 RPM
Max. Rotational Speed with L.N.A. (+/- 10%) : 1550 RPM
Min. Rotational Speed (PWM, +/-20%) : 400 RPM
Max. Airflow : 78,9 m³/h
Max. Airflow with L.N.A. : 62,6 m³/h
Max. Acoustical Noise : 22,8 dB(A)
Max. Acoustical Noise with L.N.A. : 16,3 dB(A)
Input Power : 1,2 W
Voltage Range : 12 V
MTTF : > 150.000 h
Installation Manual (PDF)
SecuFirm2™ AMD AM3/AM2 installation (NM-AMB1)
Socket compatibility : Intel LGA2066, LGA2011-0 & LGA2011-3
(Square ILM & Narrow ILM), LGA1356, LGA1366
(with Xeon backplate)
Height (without fan) : 110 mm
Width (without fan) : 95 mm
Depth (without fan) : 95 mm
Weight (without fan) : 428 g
Height (with fan) : 110 mm
Width (with fan) : 95 mm
Depth (with fan) : 95 mm
Weight (with fan/s) : 531 g
Material : Copper (base and heat-pipes), aluminium (cooling fins),
soldered joints & nickel plating
Max. TDP : see CPU compatibility list
Fan compatibility : 92x92x25
Scope of delivery : ● NF-A9 PWM premium fan
● Low-Noise Adaptor (L.N.A.)
● NT-H1 high-grade thermal compound
● SecuFirm2™ Mounting Kit
● Fan-clips for second NF-A9
Warranty : 6 Years