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  ZeDen.net Review

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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 optimised 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.



NH-U9P 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 optimised fin stack and an enlarged contact surface suitable for socket G34 allow for further improved performance.

SecuFirm 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.

Kit 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.

Kit 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!

NF-B9 2x NF-B9 92mm premium fan
Featuring advanced aerodynamic optimisations 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 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.




Noctua
28.02.2015 - ComputerForum.de NH-C12P SE14
Test verdict: "Mit dem Noctua NH-C12P SE14 runden die Kühlerspezialisten aus Österreich ihr Portfolio großer Top-Blower zwischen NH-C14 und NH-L12 mehr als gelungen ab. Der in seiner Urform NH-C12P bereits mehr als sieben Jahre am Markt befindliche Kühler aus der Alpenrepublik weiß durch seine herausragende Verarbeitung, beste Materialien und schiere Liebe zum Detail ebenso zu begeistern, wie durch seine für einen Top-Blower sehr guten Kühlwerte, die er durchweg unter geringster Geräuschentwicklung erreicht." (Benedikt Weiß, ComputerForum.de)
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27.02.2015 - PC Games Hardware 04/15 NF-A14 FLX
Test verdict: "Im Einsatz überzeugt Noctua durch eine geringe Lautstärke und eine angemessenen Kühlleistung, vor allem aber durch das eindeutig leiseste Lager im Test. Egal wie weit wir den Lüfter, unter Nutzung einer Lüftersteuerung mit Start-Boost, drosselten: Auch bei minimaler Luftbewegung können wir keine Nebengeräusche heraushören." (Torsten Vogel, PC Games Hardware 04/15)
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27.02.2015 - TechSupportForum.com NH-U9S
Test verdict: "The conclusion leaves me with the same thoughts that I have when I review any Noctua cooler and those are the thoughts of reviewing an excellently crafted product. Noctua coolers are known across the board for outstanding quality and it’s shown even further with each unit having a six year warranty. These little coolers are small, compact, and certainly worth the investment for any mATX, ATX or mini-ITX system." (Justin Vendette, TechSupportForum.com)
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