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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.



Socket compatibilityAMD 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
MaterialCopper (base and heat-pipes), aluminium (cooling fins), soldered joints & nickel plating
Fan compatibility2x 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.)
  • Y-Split Cable
  • NT-H1 high-grade thermal compound
  • SecuFirm2™ Mounting Kits
  • Warranty6 Years


    Fan specifications
     
    ModelNoctua NF-B9
    BearingSSO-Bearing
    Rotational Speed (+/- 10%)1600 RPM
    Rotational Speed with L.N.A. (+/- 10%)1300 RPM
    Rotational Speed with U.L.N.A. (+/- 10%)1000 RPM
    Airflow64,3 m³/h
    Airflow with L.N.A.52,6 m³/h
    Airflow with U.L.N.A.41,1 m³/h
    Acoustical Noise17,6 dB(A)
    Acoustical Noise with L.N.A.13,1 dB(A)
    Acoustical Noise with U.L.N.A.7,9** dB(A)
    Input Power1,32 W
    Voltage Range12 V
    MTBF> 150.000 h



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    Test verdict: "Poza tym wentylator zachował wszystkie cechy NF-F12, dlatego otrzymuje od nas ocenę 5/5 oraz dwie rekomendacje, po raz pierwszy wśród wentylatorów w kategorii jakość oraz doskonała wydajność." (Marcin Żyto, Tweaks.pl)
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    29.10.2014 - Micougnou.com NF-F12 industrialPPC-2000 PWM
    Test verdict: "C'est du lourd. Les performances sont excellentes" (Nicolas Henriques, Micougnou.com)
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    29.10.2014 - modding.fr NF-A4x10 5V
    Test verdict: "La série A n’entache en rien la réputation de Noctua, bien au contraire elle la sublime! Les performances collent proportionnellement aux dimensions des ventilateurs et avec un travail efficace sur le niveau sonore. Les optimisations présentes sur le cadre tout comme les pales, mais aussi au niveau du moteur et du roulement, contribuent à cette efficacité tant au niveau performance que sonore." (Bertrand Curras, modding.fr)
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    29.10.2014 - PCReviews.es NF-P14s redux-1500 PWM
    Test verdict: "Los ventiladores Noctua Redux tienen un magnífico rendimiento, gran diseño y son muy silenciosos, además son muy económicos. ¿Qué más se puede pedir de unos ventiladores?" (David Diaz Villa, PCReviews.es)
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