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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
19.12.2014 - ElektronikTest.dk NH-U9S
Test verdict: "Køleevne Vi ligger jo ikke på samme niveau som de store modeller, men stadig godt klaret i forhold til størrelsen af køleren. Og med en ekstra blæser på, er der ingen tvivl om at de slår mange, hvis ikke alle andre kølere i denne klasse." (John Thorn, ElektronikTest.dk)
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18.12.2014 - Tom's Hardware NH-L12
Test verdict: "For a Mini-ITX CPU cooler, the Noctua NH-L12 is somewhat of a luxury product. But like any luxury item, this heat sink comes with all the bells and whistles. While the price might be high compared to competing coolers, the NH-L12’s quality, configurability and extras make this cooler a value nonetheless." (Thomas Soderstrom, Tom's Hardware)
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18.12.2014 - hardwarepoint.net NH-U14S
Test verdict: "Der NH-U14S ist noch leistungsfähiger als der ohnehin schon gut abschneidende Dark Rock 3 und hält somit die CPU noch kühler. Hinzu kommt das bessere Montagesystem, was am Ende auch einen teureren Einkaufspreis nach sich zieht." (Dennis Heinze, hardwarepoint.net)
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18.12.2014 - Donanimhaber Forum NH-U9S
Test verdict: "Uzun lafın kısası ufak form faktörde bir bilgisayar topluyorsanız ve size ram,ekran kartı, kasa uyumuyla sıkıntı yaşatmayacak bir hava soğutma çözümü arıyorsanız NH-U9S ye bakmanızı mutlaka tavsiye ederim. Zira şu an piyasada pek alternatifi ortada gözükmüyor. Altı sene garantide cabası." (Ali Emre Alıcı, Donanimhaber Forum)
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