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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



    Noctua
    28.08.2014 - ocinside.de NH-D15
    Test verdict: "Mit dem NH-D15 ist Noctua wirklich ein Meisterwerk gelungen!" (Jens Pressel, ocinside.de)
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    27.08.2014 - Sitegeek.fr NF-S12A FLX
    Test verdict: "Bref, une référence absolue dont vous ne pouvez être déçue et que je vous recommande chaudement." (Cadoret Gwenael, Sitegeek.fr)
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    25.08.2014 - TruePCGaming.com NF-S12B redux-1200 PWM
    Test verdict: "The Redux fans, are by a significant margin, the best value-for-money cooling product I’ve used and a worthwhile investment." (John Williamson, TruePCGaming.com)
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    23.08.2014 - RealHardTechX.com NA-SRC7
    Test verdict: "En definitiva, el set de adaptadores NA-SRC7 es un excelente complemento de la serie redux, que también puede usarse conjuntamente con otros muchos ventiladores de 3 y 4 pines y que desde RealHardTechX animamos a utilizar a los fanáticos del silencio, que nos consta que sois muchos. Recomendado." ((José Romero, RealHardTechX.com)
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