NH-D9 DX-3647 4U - Noctua

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• Products
  • CPU coolers retail
  • CPU coolers workstation & server
  • Fans
  • Thermal compound
  • Accessories
    • Heatsink covers
    • Mounting kits
    • Fan mounting & anti-vibration
    • Fan control
    • Cables and adaptors
    • Cleaning
    • Fan kits
    • Screwdrivers
    • Fan grills
    • Fan hubs
  • Noctua HOME
  • Partner products
  • Merchandise
  • Discontinued Products
  • Product lines
    • IndustrialPPC
    • Chromax
    • Redux
    • Noctua HOME
  • Overview: Noctua product lines
  • Buying guides
    • Fans
    • CPU coolers
  • Roadmap of upcoming products
• Technologies
• Industrial Applications
• Support
  • Support
  • Buying guides
  • FAQs
  • Compatibility Lists (Noctua Compatibility Centre)
  • Installation Manuals
  • Installation Videos
  • Mounting and Upgrade Kits
  • Fan mounting clips
  • RMA Form
  • Support contact
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About NoctuaLegal InformationContact us NH-D9 DX-3647 4U

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NH-D9 DX-3647 4U SPECIFICATIONS Reviews Service Buy Noctua’s DX line CPU coolers have become a default choice in premium grade quiet cooling solutions for Intel Xeon processors. The NH-D9 DX-3647 4U features a larger, custom-designed contact surface and supports both square and narrow type LGA3647-0 platforms. Based on the proven, 92mm size NH-D9L heatsink and equipped with two of Noctua’s award-winning, PWM controlled NF-A9 92mm fans (high-efficiency 2500rpm version), it combines strong performance with excellent compatibility for 4U systems and other space-restricted applications. Topped off with the professional SecuFirm2™ mounting system and pre-applied NT-H1 thermal compound, the NH-D9 DX-3647 4U forms a complete premium quality package for quietly cooling LGA3647 based Xeon workstations and servers. Please note that the NH-D9 DX-3647 4U is a dedicated version for the Intel LGA3647 socket. Due to its customised larger base, it cannot be used on any other sockets and is incompatible with Noctua’s standard mounting kits. / Details DX series for Intel XeonFirst 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 LGA3647The 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). Enlarged contact surfaceAt 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 socketsThe 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. Compact 92mm size for best compatibilityThanks to its compact footprint (95x95mm with center fan only, second fan can be installed on either side depending on available space) and a total height of only 134mm, the NH-D9 DX-3647 4U provides excellent PCIe compatibility and is small enough to fit most 4U size rack-mount enclosures. Dual NF-A9 PWM fansThe NH-D9 DX-3647 4U is equipped with two of Noctua’s award-winning NF-A9 92mm fans in their high-speed 2500rpm HS-PWM variant. This push/pull dual fan configuration makes it possible to achieve a level of cooling performance that is remarkable for such a compact cooler and comes close to the bigger NH-U12S DX-3647. PWM support and y-cable The NF-A9 premium fans supplied with the NH-D9 DX-3647 4U 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 compoundNoctua’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 warrantyNoctua products are renowned for their impeccable quality and outstanding longevity. True to this legacy, the NH-D9 DX-3647 4U heatsink is built to last, and like all Noctua fans, the supplied NF-A9 units feature an MTTF rating of more than 150,000 hours. The entire package comes with a full 6-year manufacturer’s warranty. Product Details Notes and warnings Please note that the NH-D9 DX-3647 4U is a dedicated version for the Intel LGA3647 socket. Due to its customised larger base, it cannot be used on any other sockets and is incompatible with Noctua’s standard mounting kits. Cooler Specification Socket compatibility Intel Xeon LGA3647-0 Height (without fan) 134 mm Width (without fan) 95 mm Depth (without fan) 95 mm Weight (without fan) 584 g Height (with fan) 134 mm Width (with fan) 95 mm Depth (with fan) 120 mm Weight (with fan) 769 g Material Copper (base and heat-pipes), aluminium (cooling fins), soldered joints & nickel plating NSPR 134 Max. TDP see NSPR Fan compatibility 2x 92x92x25mm Scope of delivery

• 2x NF-A9 HS-PWM premium fan
• Y-split cable
• NT-H1 high-grade thermal compound (pre-applied)
• SecuFirm2™ mounting kit for LGA3647
• Noctua metal case-badge

Warranty 6 Years FAN Specification Model 2x Noctua NF-A9 HS-PWM Bearing SSO2 Max. rotational speed (+/- 10%) 2500 RPM Min. rotational speed @ 20% PWM (+/-20%) 400 RPM Max. airflow 96,3 m³/h Max. acoustical noise 30,6 dB(A) Input power (max.) 1,68 W Voltage range 12 V MTTF > 150.000 h INSTRUCTIONS AND INFORMATION SHEETS (PDF) FAQs Motherboard Compatibility Case Compatibility CPU Compatibility RAM COMPATIBILITY Installation Manual (PDF) Information Sheet (PDF)

Disclaimer:We create and update our compatibility lists with the utmost care. Unfortunately, mainboard manufacturers tend to change certain components and heatsinks without pointing it out by using corresponding revision names. If you run into problems while installing our coolers on one of the mainboards listed as being compatible, please don't hesitate to contact our support team at support@noctua.at.Please also keep in mind that other components such as narrow or small cases as well as memory modules with special (higher) heat-spreaders can cause compatibility-issues.For use in systems from Dell, HP or Lenovo, please note this FAQ.

Can't find the motherboard you're looking for? Please don't hesitate to contact our support team at support@noctua.at in order to obtain compatibility information for motherboards that aren't listed below.

Our case compatibility list helps you to quickly identify which PC cases offer sufficient clearance for which Noctua CPU coolers. The compatibility indication is based on the height of the coolers (including fans) as well as the maximum CPU cooler height specification given by the chassis manufacturer. Caution: Please note that the fans of some tower coolers (especially larger models with 140mm fans, e.g. NH-D15 or NH-U14S TR4-SP3) may overhang the RAM slots and that this can cause compatibility issues if RAM modules taller than 32mm are used. While the fans can be moved upwards to increase RAM clearance, this will increase the total height of the cooler and thus requires additional clearance inside the chassis. As a rule of thumb, if the fan overhangs the RAM, the maximum CPU cooler height specification of the case must be at least the size of the fan plus the height of the RAM minus 7mm (accounting for the height of the socket and CPU). For example, if a cooler uses a 140mm fan that overhangs the RAM and 46mm tall RAM modules are used, the max. CPU cooler height specification should be at least 179mm (140+46-7=179). For further information and instructions on how to move up the fan for each cooler model, please click the height specification link. Disclaimer: We create and update our compatibility lists with utmost care. However, case manufacturers sometimes change parts or details of their products without prior notice or explicitly indicating a revision. Therefore, Noctua cannot accept any liability, nor in any other way be held responsible, for the following compatibility information.

Can't find the case you're looking for? Please don't hesitate to contact our support team at support@noctua.at in order to obtain compatibility information for cases that aren't listed above.

When modern CPUs use their turbo modes, they can (depending on the configuration of the UEFI BIOS) dissipate much more heat than indicated by the manufacturer’s TDP (Thermal Design Power) specification. Just like manual overclocking, this puts higher demands on the cooling solution. Our CPU compatibility list helps you to choose the cooler model that is best suited for a given CPU and your individual requirements as far as turbo and overclocking headroom are concerned. We classify our coolers according to the following categories: best turbo/overclocking headroom medium turbo/overclocking headroom low turbo/overclocking headroom compatible without turbo/overclocking headroom compatible with certain restrictions (see comment) incompatible (see comment)

For further information on CPUs exceeding their TDP ratings and how to configure the UEFI BIOS in order to avoid excessively high temperatures, please see this FAQ.

Please also see our general buying guide, motherboard compatibility list and FAQs for further help on how to select the best cooler for your configuration.

Can't find the CPU you're looking for? Please don't hesitate to contact our support team at support@noctua.at in order to obtain compatibility information for CPUs that aren't listed here.

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