Noctua CPU Cooler NH-U9DO A3 - 840556091110 is now out of stock ETA: Mid November
Noctua CPU Cooler NH-U9DO A3
Socket compatibility AMD G34, C32, F (3.5" & 4.1") Noctua's DO line of coolers has become a default choice when it comes to quietly cooling AMD Opteron CPUs. Upgrading both compatibility and performance, the new A3 model features Noctua's professional NM-A3 SecuFirm2™ mounting system that not only supports socket G34, C32 and F, but also allows to install the cooler turned by 90°. Thanks to six heatpipes, a performance optimized fin stack and its two premium grade NF-B9 92mm fans, the compact NH-U9DO A3 cools Opteron processors up to a thermal design power (TDP) of 115W at minimum noise levels. Bundled with Noctua's industrial-grade NT-H1 thermal compound and fitting standard 4U chassis, the NH-U9DO A3 forms a complete premium quality package for quietly cooling AMD workstations and servers.
Caution: Due to its more compact design and quiet operation, the NH-U9DO A3 is approved only for processors with up to 115W thermal design power (TDP). Using the NH-U9DO A3 on higher TDP processors may be possible with increased case ventilation depending on the specific configuration but is not officially supported by Noctua.
Performance optimised design
The NH-U9DO A3 is based on Noctua's much acclaimed NH-U series which have received more than 300 awards and recommendations from the international press. Six heatpipes, a performance optimized fin stack and an enlarged contact surface suitable for socket G34 allow for further improved performance.
Supports G34, C32 and Socket F
Thanks to the new NM-A3 SecuFirm2™ mounting system that includes brackets with both 3.5" and 4.1" hole spacing, the NH-U9DO A3 supports Socket F as well as the newer G34 and C32 sockets.
Can be turned by 90° for optimal compatibility and positioning
Noctua's NM-A3 SecuFirm2™ mounting system makes it possible to install the cooler rotated by 90° in order to allow for an optimal positioning of the cooler and to evade compatibility issues on dual socket mainboards.
Drop-in replacement for standard AMD coolers
Screwing directly to the standard AMD backplate, the NM-A3 SecuFirm2™ mounting system makes the new A3 revision a true drop-in replacement. Choose the appropriate mounting brackets, fix the two spring screws and you're done!
2x NF-B9 92mm premium fan
Featuring advanced aerodynamic optimizations and Noctua's premium-grade SSO-bearing, the award-winning NF-B9 is renowned for its exceptional quietness and long-term stability. The dual fan configuration allows for increased performance and safeguarding against failure.
NT-H1 thermal compound
Noctua's much-acclaimed NT-H1 is a well proven pro-grade TIM solution that provides minimum thermal resistance, excellent ease-of-use and outstanding reliability, which makes it suitable for use in professional server and workstation environments.
Socket compatibility AMD G34, C32, F (3.5" & 4.1")
Height (without fan) 125 mm
Width (without fan) 95 mm
Depth (without fan) 71 mm
Height (with fan) 125 mm
Width (with fan) 95 mm
Depth (with fan) 95/120* mm
Weight (without fan) 540 g
Weight (with fan) 630/720* g
Material Copper (base and heat-pipes), aluminium (cooling fins), soldered joints & nickel plating
Fan compatibility 2x 92x92x25mm
Scope of Delivery 2x NF-B9 premium fan
2x Ultra-Low-Noise Adaptor (U.L.N.A.)
2x Low-Noise Adaptor (L.N.A.)
NT-H1 high-grade thermal compound
SecuFirm2™ Mounting Kits
Warranty maufacture 6 Years
Model Noctua NF-B9
Rotational Speed (+/- 10%) 1600 RPM
Rotational Speed with L.N.A. (+/- 10%) 1300 RPM
Rotational Speed with U.L.N.A. (+/- 10%) 1000 RPM
Airflow 64,3 m³/h
Airflow with L.N.A. 52,6 m³/h
Airflow with U.L.N.A. 41,1 m³/h
Acoustical Noise 17,6 dB(A)
Acoustical Noise with L.N.A. 13,1 dB(A)
Acoustical Noise with U.L.N.A. 7,9** dB(A)
Input Power 1,32 W
Voltage Range 12 V
MTBF > 150.000 h