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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 m/h
    Airflow with L.N.A.52,6 m/h
    Airflow with U.L.N.A.41,1 m/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
    21.09.2014 - QuentinRademaker.nl NH-D15
    Test verdict: "Overall performance is great, and I must admit its dead silent even on full load. Who says bigger isnt always better!" (Quentin Rademaker)
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    21.09.2014 - RealHardTechX.com NF-A9 PWM
    Test verdict: "Distinguimos al ventilador NOCTUA NF-A9 PWM con nuestro premio a la excelencia RealHardTechX Award y recomendamos su compra a todos nuestros lectores." (Jos Romero, RealHardTechX.com)
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    20.09.2014 - HWready.it NF-A4x10 5V
    Test verdict: "Detto ci senza fronzoli e giri di parole, se necessita di ventole di prima scelta non rimarrete delusi della serie NF Noctua." (Santoro Luigi, HWready.it)
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    19.09.2014 - WarLegend.net NH-D15
    Test verdict: "Je recommande le NH-D15 qui est silencieux et efficace ! Amis overclockeur, amis gamers, foncez ! Vous avez l un ventirad qui tient un OC aussi bien quun ventirad watercooling (voir mieux que certains)." (Godin Charles, WarLegend.net)
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