Noctua NH-U12S DX3647

RM679.00

  • 2x NF-A12x25 PWM fan
  • 4-pin Y-cable
  • NT-H1 high-grade thermal compound (pre-applied)
  • SecuFirm2™ mounting-kit for LGA3647
  • Noctua metal case-badge

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Noctua NH-U12S DX3647

Noctua NH-U12S DX3647 Noctua’s DX line CPU coolers have become a default choice in premium grade quiet cooling solutions for Intel Xeon processors. The NH-U12S DX-3647 features a larger, custom-designed contact surface and supports both square and narrow type LGA3647-0 platforms. Based on the proven, 120mm size NH-U12S heatsink and equipped with two of Noctua’s award-winning, PWM controlled NF-A12x25 120mm fans, it provides an excellent balance of performance, compatibility and quietness of operation. Topped off with the professional SecuFirm2™ mounting system and pre-applied NT-H1 thermal compound, the NH-U12S DX-3647 forms a complete premium quality package for quietly cooling LGA3647 based Xeon workstations and servers. Please note that the NH-U12S DX-3647 is a dedicated version for the Intel LGA3647. Due to its customised larger base, it cannot be used on any other sockets and is incompatible with Noctua’s standard mounting kits.
Noctua NH-U12S DX3647

DX series for Intel Xeon

First introduced in 2008, Noctua’s DX line CPU coolers have become a standard choice when it comes to quiet, premium grade air cooling solutions for Intel Xeon processors. Thanks to their superior acoustic efficiency, they are ideal for workstations and servers that run in noise sensitive environments (e.g. audio/video production, content creation, engineering, etc.).

Customised for LGA3647

The new DX-3647 line coolers are dedicated, customised solutions for Intel’s professional LGA3647 platform, which makes them an ideal fit for both Skylake-SP based Xeon Scalable CPUs (Platinum, Gold, Silver or Bronze, Purley series) and Xeon-Phi processors (code names Knight’s Landing or Knight’s Mill).
Noctua NH-U12S DX3647

Enlarged contact surface

At 70x56mm, the heatsink’s copper contact surface is more than double the size of the standard model. Tailored to fit the enormous integrated heat-spreaders (IHS) of Intel’s LGA3647-based processors, this customised design allows for an optimal heat flow from the CPU over the base to the heatpipes and on to the cooling fins.

Supports square and narrow type LGA3647-0 sockets

The heatsink’s SecuFirm2™ mounting system includes two sets of brackets in order to support both square and narrow type LGA3647-0 sockets. Thanks to pre-installed mounting screws and the included processor clips (square type and narrow type without Omni-Path fabric connector, with fabric connector on request), the installation procedure is easy, quick and secure.
Noctua NH-U12S DX3647

120mm size for excellent performance and compatibility

With five heatpipes and two next-generation NF-A12x25 120mm fans, the NH-U12S DX-3647 achieves outstanding cooling performance while maintaining excellent compatibility: At 158mm height and 125mm width, it is short enough to fit most modern tower cases and stays clear of the top PCIe slot on many motherboards.

Dual NF-A12x25 PWM fans

The NH-U12S DX-3647 is equipped with two of Noctua’s award-winning, next-generation NF-A12x25 120mmm fans. This exquisite, state-of-the art push/pull dual fan configuration allows it to achieve a remarkable level of quiet cooling performance despite its relatively compact size.
Noctua NH-U12S DX3647

PWM support and y-cable

The NF-A12x25 premium fans supplied with the NH-U12S DX-3647 support PWM for convenient automatic speed control through the motherboard, which allows them to run near silent at lighter loads and to speed up only when necessary. The supplied y-cable makes it possible to power and control both fans simultaneously from a single motherboard fan header.

Pre-applied NT-H1 thermal compound

Noctua’s much-acclaimed NT-H1 is a pro-grade TIM solution that provides minimum thermal resistance and outstanding long-term stability. Having the paste pre-applied to the heatsink base ensures optimal bond-line thickness and saves precious time in installation. Ideal for system integrators!
Cooler Specifications Noctua NH-U12S DX-3647
Socket compatibility Intel Xeon LGA3647-0
Height (without fan) 158 mm
Width (without fan) 125 mm
Depth (without fan) 45 mm
Weight (without fan) 626 g
Height (with fan) 158 mm
Width (with fan) 125 mm
Depth (with fan) 97 mm
Weight (with fan) 1018 g
Material Copper (base and heat-pipes), aluminium (cooling fins), soldered joints & nickel plating
NSPR 157
Max. TDP see NSPR
Fan compatibility 120x120x25
Scope of delivery
  • 2x NF-A12x25 PWM fan
  • 4-pin Y-cable
  • NT-H1 high-grade thermal compound (pre-applied)
  • SecuFirm2™ mounting-kit for LGA3647
  • Noctua metal case-badge
FAN Specification Noctua NF-A12x25 PWM chromax.black
Bearing  SSO2
Max. rotational speed (+/- 10%) 2000 RPM
Max. rotational speed with L.N.A. (+/- 10%) 1700 RPM
Min. rotational speed (PWM, +/-20%) 450 RPM
Max. airflow 102,1 m³/h
Max. airflow with L.N.A. 84,5 m³/h
Max. acoustical noise 22,6 dB(A)
Max. acoustical noise with L.N.A. 18,8 dB(A)
Voltage range 12 V
MTTF
> 150.000 h
Similar Product NH-U12S
Weight 1.5 kg
Dimensions 25 × 20 × 15 cm

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