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-4189 features a larger, custom-designed contact surface for LGA4189 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-4189 forms a complete premium quality package for quietly cooling LGA4189 based Xeon workstations and servers.
Please note that the NH-U12S DX-4189 is a dedicated version for the Intel LGA4189 socket. Due to its customised larger base, it cannot be used on most other sockets and is incompatible with Noctua’s standard mounting kits.
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 LGA4189
The new DX-4189 line coolers are dedicated, customised solutions for Intel’s professional LGA4189 platform (Whitley), which makes them an ideal fit for both Ice Lake-SP based 3rd generation Xeon Scalable CPUs (Platinum, Gold, Silver or Bronze) and W-3300 series Xeon processors for workstations (Ice Lake-64L).
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 LGA4189-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.
SecuFirm2™ mounting system with standard Intel parts
Integrating standard Intel parts such as the anti-tilt mechanism, Torx® T30 PEEK nuts and LGA4189-4 (P4) CPU carrier frame, the cooler’s mounting system is fully compliant with Intel’s installation guidelines and provides a familiar mounting procedure for experienced LGA4189 users. A Torx® T30 mounting tool is included.
LGA4189-4 (P4) CPU carrier frame
120mm size for excellent performance and compatibility
With five heatpipes and two next-generation NF-A12x25 120mm fans, the NH-U12S DX-4189 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-4189 is equipped with two of Noctua’s award-winning, next-generation NF-A12x25 120mm 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.
PWM support and y-cable
The NF-A12x25 premium fans supplied with the NH-U12S DX-4189 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!
6-year manufacturer’s warranty
Noctua products are renowned for their impeccable quality and outstanding longevity. True to this legacy, the NH-U12S DX-4189 heatsink is built to last, and like all Noctua fans, the supplied NF-A12x25 units feature an MTTF rating of more than 150,000 hours. The entire package comes with a full 6-year manufacturer’s warranty.
Socket compatibility Intel Xeon LGA4189
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
Max. TDP see NSPR
Fan compatibility 120x120x25
Scope of delivery
2x NF-A12x25 PWM premium fan
NT-H1 high-grade thermal compound (pre-applied)
SecuFirm2™ mounting kit for LGA4189
CPU carrier frame for LGA4189-4 (P4)
NM-SMT5 Torx® T30 mounting tool
Noctua metal case-badge
Warranty 6 Years
Model 2x Noctua NF-A12x25 PWM
Max. rotational speed (+/- 10%) 2000 RPM
Min. rotational speed (PWM, +/-20%) 450 RPM
Max. airflow 102,1 m³/h
Max. acoustical noise 22,6 dB(A)
Input power 1,68 W
Voltage range 12 V
MTTF > 150.000 h