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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-P12 120mm fans, the NH-U12DO A3 cools even the hottest high-end Opteron processors at minimum noise levels. Bundled with Noctua's industrial-grade NT-H1 thermal compound, the NH-U12DO A3 forms a complete premium quality package for quietly cooling AMD workstations and servers.



Socket compatibilityAMD G34, C32, F (3.5" & 4.1")
Height (without fan)158 mm
Width (without fan)126 mm
Depth (without fan)71 mm
Height (with fan)158 mm
Width (with fan)126 mm
Depth (with fan)95/120* mm
Weight (without fan)800 g
Weight (with fan)970/1140* g
MaterialCopper (base and heat-pipes), aluminium (cooling fins), soldered joints & nickel plating
Fan compatibility120x120x25mm
Scope of Delivery
  • 2x NF-P12 premium fan
  • Ultra-Low-Noise Adaptor (U.L.N.A.)
  • Low-Noise Adaptor (L.N.A.)
  • NT-H1 high-grade thermal compound
  • SecuFirm2™ Mounting Kits
  • Warranty6 Years


    Fan specifications
     
    ModelNoctua NF-P12
    BearingSSO-Bearing
    Blade geometryNine Blade Design
    Rotational Speed (+/- 10%)1300 RPM
    Rotational Speed with L.N.A. (+/- 10%)1100 RPM
    Rotational Speed with U.L.N.A. (+/- 10%)900 RPM
    Airflow92,3 m³/h
    Airflow with L.N.A.78,5 m³/h
    Airflow with U.L.N.A.63,4 m³/h
    Acoustical Noise19,8 dB(A)
    Acoustical Noise with L.N.A.16,9 dB(A)
    Acoustical Noise with U.L.N.A.12,6 dB(A)
    Input Power1,08 W
    Voltage Range12 V
    MTBF> 150.000 h



    Noctua
    22.09.2014 - mod-your-case.de NF-A8 ULN
    Test verdict: "Preislich ist der NH-A8 ULN nicht der günstigste 80mm-Lüfter auf dem Markt, dafür gehört er aber zu den leisesten seiner Sorte und wurde zudem mit einem großen Lieferumfang ausgestattet. " (Patrick Seus, mod-your-case.de)
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    22.09.2014 - DVTests.com NF-A14 industrialPPC-2000 PWM
    Test verdict: "Outstanding job, Noctua, with the new industrialPPC series!" (Dobrin Krastev, DVTests.com)
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    21.09.2014 - mod-your-case.de NF-A4x10 5V
    Test verdict: "Mit knapp 13€ ist der Lüfter war nicht gerade günstig, die eigenen Nerven werden es einem jedoch recht schnell danken, wenn z.B. die quirligen Lüftergeräusche aus dem heimischen NAS gemindert werden." (Patrick Seus, mod-your-case.de)
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    21.09.2014 - QuentinRademaker.nl NH-D15
    Test verdict: "Overall performance is great, and I must admit it’s dead silent even on full load. Who says bigger isn’t always better!" (Quentin Rademaker)
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