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 optimized 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.
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Noctua NH-U9DO A3 Quiet CPU Cooler
Noctua NH-U9DO A3 Quiet CPU Cooler
Noctua NH-U9DO A3 Quiet CPU Cooler
Socket Compatibility
- Intel AMD G34, C32, F (3.5" & 4.1")
Features
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Performance optimized design
The NH-U9DO 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 optimized fin stack and an enlarged
contact surface suitable for socket G34 allow for further improved performance. |
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Supports G34, C32 and Socket F
Thanks to the new NM-A3 SecuFirm2™ mounting system that includes
brackets with both 3.5" and 4.1" hole spacing, the NH-U9DO
A3 supports Socket F as well as the newer G34 and C32 sockets. |
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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. |
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Drop-in replacement for standard AMD coolers
Screwing directly to the standard AMD backplate, the NM-A3 SecuFirm2™ 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! |
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2x NF-B9 92mm premium fan
Featuring advanced aerodynamic optimizations and Noctua's premium-grade
SSO-bearing, the award-winning NF-B9 is renowned for its exceptional
quietness and long-term stability. The dual fan configuration allows
for increased performance and safeguarding against failure. |
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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. |
CPU Cooler Specifications
| CPU Cooler Specifications |
| 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 (1 fan) / 120 mm (with 2 fans) |
| Weight (without fan) |
540 g |
| Weight (with fan) |
630g (1 fan) / 720 g (with 2 fans) |
| Material |
Copper (base and heat-pipes), aluminum (cooling fins), soldered joints, nickel plated |
| Socket compatibility |
AMD G34, C32, F (3.5" & 4.1") |
| Fan compatibility |
2x 92x92x25mm |
| Includes |
- 2x NF-B9 premium fan
- 2x Ultra-Low-Noise Adapter (U.L.N.A.)
- 2x Low-Noise Adapter (L.N.A.)
- Y-Split Cable
- NT-H1 high-grade thermal compound
- SecuFirm2™ Mounting Kits
|
| Warranty |
6 Years |
Fan Specifications
| Fan Specifications |
| Model |
Noctua NF-B9 |
| Bearing |
SSO-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 |
| Airflow |
64,3 m³/h |
| Airflow with L.N.A. |
52,6 m³/h |
| Airflow with U.L.N.A. |
41,1 m³/h |
| Acoustical Noise |
17,6 dB(A) |
| Acoustical Noise with L.N.A. |
13,1 dB(A) |
| Acoustical Noise with U.L.N.A. |
7,9 dB(A) |
| Input Power |
1,32 W |
| Voltage Range |
12 V |
| MTBF |
> 150.000 h |