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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
17.04.2015 - CoolingTechnique.com NH-L9x65
Test verdict: "Tirare delle conclusioni su questo genere di proposte non è mai semplice, se però si analizzano le premesse con il quale l'NH-L9x65 viene venduto possiamo sicuramente direi che il bersaglio è stato nuovamente centrato da parte di Noctua." (Damiano Villa, CoolingTechnique.com)
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17.04.2015 - OverclockersClub.com NH-U9S
Test verdict: "Noctua is in a great place market wise, because of good performance and quality fans. Any users who either do not have the internal retail space or is looking for lower temperatures versus using the stock cooler. This is what this cooler is intended for. It may be a little pricey for my taste, but you get a lot for what you pay." (Isaiah Rossiter, OverclockersClub.com)
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17.04.2015 - El Chapuzas Informático NH-L9x65
Test verdict: "El Noctua NH-L9x65 es quizás uno de los mejores disipadores ultra-compactos que podemos encontrar en el mercado, pues con su altura de tan solo 65 mm permite ser instalado en chasis realmente muy muy bajos. (Iván Martínez, El Chapuzas Informático)
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16.04.2015 - Razorman.net NH-L9x65
Test verdict: "El rendimiento de este Noctua NH-L9x65 es muy bueno y a la vez muy silencioso. El proceso de instalación es sencillísimo y es ideal para equipos HTPC o mini-itx." (Ana Rey Carballeira, Razorman.net)
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