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Compact dual-tower CPU cooler with 92mm brown fan, 110mm tall, copper fins visible

Noctua

Noctua NH-D9DX i4 3U CPU cooler 92mm 110mm height

SKU CH-JY86-HB2YC MPN NH-D9DX i4 3U

Cools Intel Xeon LGA20xx CPUs in 3U chassis with a 110 mm dual-tower heatsink and 92 mm PWM fan

  • TypeFan & Heatsinks
  • Fan Size92mm
  • CPU Socket CompatibilityIntel LGA2066, LGA2011-0 & LGA2011-3 (Square ILM & Narrow IL
  • Bearing TypeSSO2
  • RPM2000 RPM (Standard), 1550 RPM (with L.N.A), 400 RPM (PWM)
  • Air Flow46.44 CFM (Standard), 36.84 CFM (with L.N.A)
  • 3U-compliant 110mm height fits compact server cases
  • Dual-tower copper heatsink clears RAM and PCIe slots
  • NF-A9 92mm PWM fan with SSO2 bearing runs at 22.8 dBA
  • SecuFirm2 mounting supports Intel Xeon LGA2066 LGA2011-0 LGA2011-3 LGA1356 LGA1366
  • Includes NT-H1 thermal compound and Low-Noise Adaptor for quieter operation

Compact 3U cooler for Xeon servers

The Noctua NH-D9DX i4 3U is a 110 mm tall dual-tower air cooler built for Intel Xeon platforms using LGA2066, LGA2011-0, LGA2011-3, LGA1356 and LGA1366 sockets. Its 95 mm square footprint clears RAM and PCIe slots on current boards, making it suitable for rackmount workstations and quiet HTPC builds where vertical space is limited.

Replaces taller 4U coolers in 3U chassis

The 110 mm height is 15 mm lower than earlier 4U-compliant 9 cm DX coolers, allowing installation in 3U rack cases without sacrificing dual-tower surface area. Builders moving from bulkier heatsinks gain the clearance needed for low-profile DIMMs and full-length expansion cards while retaining SecuFirm2 mounting and NT-H1 thermal compound.

Sustained load runs at reduced fan speed

Under continuous thermal load the NF-A9 PWM fan operates between 400 and 2000 RPM, delivering 46.44 CFM at the standard 22.8 dBA level. With the supplied Low-Noise Adaptor the speed drops to 1550 RPM for 36.84 CFM at 16.3 dBA, keeping acoustic output low during extended render or compute sessions.

Points forts

  • 3U-compliant 110mm height fits compact server cases
  • Dual-tower copper heatsink clears RAM and PCIe slots
  • NF-A9 92mm PWM fan with SSO2 bearing runs at 22.8 dBA
  • SecuFirm2 mounting supports Intel Xeon LGA2066 LGA2011-0 LGA2011-3 LGA1356 LGA1366
  • Includes NT-H1 thermal compound and Low-Noise Adaptor for quieter operation

Caractéristiques

BrandNoctua
ModelNH-D9DX i4 3U
TypeFan & Heatsinks
Fan Size92mm
CPU Socket CompatibilityIntel LGA2066, LGA2011-0 & LGA2011-3 (Square ILM & Narrow ILM), LGA1356, LGA1366 (with Xeon backplate)
Bearing TypeSSO2
RPM2000 RPM (Standard), 1550 RPM (with L.N.A), 400 RPM (PWM)
Air Flow46.44 CFM (Standard), 36.84 CFM (with L.N.A)
Noise Level22.8 dBA (Standard), 16.3 dBA (w/ L.N.A)
Heatsink MaterialCopper
Fan Mounting Types to HeatsinkHorizontal
Max CPU Cooler Height110 mm
Fan Dimensions92.00 x 92.00 x 25.00 mm
Heatsink Dimensions95.00 x 95.00 x 110.00 mm
Weight531g
Features3U compatibility
The NH-D9DX i4 stands only 110mm tall. This is 15mm less than previous 4U compliant 9cm DX-line coolers and allows the NH-D9DX i4 to also fit 3U cases - ideal for noise-sensitive 3U applications in fields such as audio or video processing!
100% RAM compatibility
With its 95x95mm footprint, the NH-D9DX i4 does not overhang the RAM slots on LGA2011 Square ILM, LGA1366 and LGA1356. This gives the user full access to the memory modules and guarantees 100% compatibility with tall heatspreaders or optional memory fans.*
NF-A9 premium fan
The highly optimised NF-A9 premium
Package ContentsNF-A9 PWM premium fan
Low-Noise Adaptor (L.N.A.)
NT-H1 high-grade thermal compound
SecuFirm2 Mounting Kit
Fan-clips for second NF-A9
Poids d’expédition1.07 kg
Dimensions du colis178 × 178 × 157 mm

Questions sur cet article

How much clearance does the 110mm tall NH-D9DX i4 need above the CPU socket in a 3U chassis?

The cooler stands 110mm high with a 95mm square footprint, so it fits the 3U height limit and clears RAM slots on LGA2011 Square ILM and LGA1356 boards.

Which SecuFirm2 mounting parts do I use for an LGA2011-3 Narrow ILM Xeon, and what common step is missed?

Use the Narrow ILM brackets and backplate from the SecuFirm2 kit; the step often missed is installing the Xeon-specific backplate before placing the motherboard in the case.

When should I replace the supplied NT-H1 thermal paste on this Xeon cooler?

Noctua rates NT-H1 for at least three years without re-application; replace it only if you remount the cooler or see rising temperatures after that period.

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