£47.49 inc. vat

£39.57 ex. vat

In Stock

Order within for delivery on Tuesday, 21st February

Click & Collect Unavailable

Noctua NH-U12DO A3 AMD Opteron CPU Cooler

  • Performance optimised design
  • Can be turned by 90° for optimal positioning
  • Drop-in replacement for standard AMD coolers
  • Compatible with AMD G34, C32 and Socket F

View full description

View add-ons and accessories
QuickFind: 620776

Mfr part code: NH-U12DO-A3

  • {{ title }}
  • {{/lists}}

    Noctua NH-U12DO A3 AMD Opteron CPU Cooler Product Description

    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.

    Performance optimised design:

    The NH-U12DO 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.

    Supports G34, C32 and Socket F:

    Thanks to the new NM-A3 SecuFirm2â„¢ mounting system that includes brackets with both 3.5" and 4.1" hole spacing, the NH-U12DO 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 SecuFirm2â„¢ 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-P12 2x NF-P12 120mm premium fan:

    Featuring advanced aerodynamic optimisations and Noctua's premium-grade SSO-bearing, the award-winning NF-P12 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.

    • Socket compatibility - AMD 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
    • Material - Copper (base and heat-pipes), aluminium (cooling fins), soldered joints & nickel plating
    • Fan compatibility - 120x120x25mm
    • 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
    • Warranty - 6 Years

    Fan specifications  

    • Model - Noctua NF-P12
    • Bearing - SSO-Bearing
    • Blade geometry - Nine 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
    • Airflow - 92,3 m³/h
    • Airflow with L.N.A. - 78,5 m³/h
    • Airflow with U.L.N.A. - 63,4 m³/h
    • Acoustical Noise - 19,8 dB(A)
    • Acoustical Noise with L.N.A. - 16,9 dB(A)
    • Acoustical Noise with U.L.N.A. - 12,6 dB(A)
    • Input Power  - 1,08 W
    • Voltage Range - 12 V
    • MTBF - > 150.000 h

    Add-ons and Accessories

    Thermal Paste

    £2.49 inc. vat
    £2.62save £0.13
    £2.07 ex. vat
    £2.18save £0.11
    £2.99 inc. vat
    £3.59save £0.60
    £2.49 ex. vat
    £2.99save £0.50
    £6.38 inc. vat
    £5.31 ex. vat
    £6.78 inc. vat
    £7.28save £0.50
    £5.65 ex. vat
    £6.06save £0.41

    Technical Specifications


    Product Type Processor cooler
    Package Content Thermal paste, Ultra-Low-Noise Adaptor (U.L.N.A.), Low-Noise Adaptor (L.N.A.), SecuFirm2 Mounting Kit
    Width 12.6 cm
    Depth 12 cm
    Height 15.8 cm
    Weight 1.14 kg

    Heatsink & Fan

    Compatible With Socket F, Socket G34, Socket C32
    Processor Compatibility Opteron
    Heatsink Material Aluminum with nickel plated copper base
    Heatsink Dimensions 158 mm x 126 mm x 71 mm
    Fans Qty 2
    Fan Diameter 120 mm
    Fan Height 25 mm
    Fan Bearing SSO bearing
    Rotation Speed 900/1100/1300 rpm
    Air Flow 63.4/78.5/92.3 cfm
    Noise Level 12.6/16.9 /19.8 dBA
    Noise & Performance Details 19.8 dBA / 92.3 cfm at 1300 rpm ¦ 16.9 dBA / 78.5 cfm at 1100 rpm ¦ 12.6 dBA / 63.4 cfm at 900 rpm
    Rated Voltage 12 V
    Power Consumption 1.08 W
    Features 6 nickel plated copper heat pipes


    Mounting Kit Included
    MTBF 150,000 hour(s)

    Manufacturer Warranty

    Service & Support 6 years warranty
    Service & Support Details Limited warranty - 6 years

    Customer Questions

    Noctua NH-U12DO A3 AMD Opteron CPU Cooler Ask an owner

    Noctua NH-U12DO A3 AMD Opteron CPU Cooler Product Discussion

    Our comments box is a great way for you to view other people's feedback about products on Ebuyer.com, and add your own.

    • This tool is open to everyone.
    • You are responsible for the contents of your comments and any consequences that may arise as a result of them.
    • Comments that contain any of the following will be deleted: terms considered explicit and inappropriate; defamatory, obscene, unlawful, harmful, or offensive.