Noctua NH-L9i CPU Cooler
* In stock.
The NH-L9i is a premium quality quiet CPU cooler for Intel LGA115x based HTPCs and Small Form Factor systems. At a super-low profile of only 37mm, the NH-L9i is ideal for extremely slim cases and due to its 95x95mm footprint, it provides full compatibility with tall RAM modules and VGA cards on mini-ITX mainboards. The custom designed SecuFirm2™ mounting system for LGA115x makes installation a child's play and thanks to the highly optimised NF-A9x14 premium fan that supports fully automatic speed control via PWM, the NH-L9i runs remarkably quiet. Topped off with Noctua's renowned NT-H1 thermal compound, the NH-L9i fuses everything users have come to expect from Noctua's larger coolers into a super-compact package for slim HTPC systems.
Caution: The NH-L9i is a highly-compact low-profile quiet cooler designed for use in small form factor cases and HTPC environments. While it provides first rate performance in its class, it is not suitable for overclocking and should be used with care on CPUs with more than 65W TDP (Thermal Design Power). Please consult the TDP guidelines below to find out whether the NH-L9i is recommended for your CPU.
37mm Low Profile
Due to the slim 23mm heatsink and the NF-A9x14 low profile fan that measures only 14mm in thickness, the NH-L9 stands a mere 37mm tall, which makes it ideal for use in compact HTPCs or Small Form Factor cases that offer minimum clearance for CPU coolers.
100% RAM Compatibility
The NH-L9i has a 95x95mm footprint that complies exactly with the Intel LGA115x socket keep-out zone. This means that it won't cause issues with chipset coolers and doesn't overhang the RAM slots, so it's fully compatible with tall memory modules.
100% Compatibility with PCIe Cards on Mini-ITX
Most Intel LGA115x based mini-ITX mainboards have the PCIe slot sitting right next to the 95x95mm socket zone. While larger coolers that exceed this zone are likely to block the PCIe slot, the 95x95xmm sized NH-L9i provides full compatibility with PCIe cards.
NF-A9x14 PWM Premium Fan
The highly optimized NF-A9x14 premium fan features Noctua's proprietary AAO frame as well as sophisticated aerodynamic design measures. Supporting PWM for fully automatic speed control, the NF-A9x14 allows the NH-L9i to stay remarkably quiet.
Allowing to reduce the maximum speed of the NF-A9x14 fan from 2500 to 1800rpm, the included Low-Noise Adaptor (L.N.A.) makes it possible to achieve near-silent setups using CPUs with less than 65W TDP.
Custom-designed SecuFirm2™ Mounting for LGA115x
The NH-L9i bundles a custom-designed SecuFirm2™ mounting system for LGA115x that offers extended compatibility with mini-ITX boards and makes installation easier than ever, all while maintaining the trusted SecuFirm2™ quality.
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.
6 Years Manufacturer's Warranty
Noctua products are renowned for their impeccable quality and outstanding longevity. Like all Noctua fans, the supplied NF-A9x14 features an MTBF rating of more than 150.000 hours and the entire NH-L9i package comes with a full 6 years manufacturer's warranty.
|Noctua NH-L9i CPU Cooler Specification
|LGA1150, LGA1155, LGA1156
|Height (without fan)
|Width (without fan)
|Depth (without fan)
|Height (with fan)
|Width (with fan)
|Depth (with fan)
|Weight (without fan)
|Weight (with fan)
|Copper (base and heat-pipes), aluminum (cooling fins), soldered joints & nickel plating
|Scope of Delivery
|Noctua NF-A9x14 PWM
|Max. Rotational Speed (+/- 10%)
|Max. Rotational Speed with L.N.A. (+/- 10%)
|Min. Rotational Speed (PWM)
|Max. Airflow with L.N.A.
|Max. Acoustical Noise
|Max. Acoustical Noise with L.N.A.
|> 150.000 h
|Noctua NH-L9i: TDP Guidelines
|Intel Sandy Bridge
|65W or less
|Recommended with good case ventilation only
|Intel Ivy Bridge
|65W or less
|Recommended with good case ventilation and Intel Turbo Mode disabled only
|65W or less
|Recommended with good case ventilation, Intel Turbo Mode disabled and typical workloads only (not recommended for continuous 100% load on all CPU cores).
|65W or less
*Caution: Intel's unlocked K-series CPU's dissipate more heat than indicated TDP with most mainboards' default BIOS settings. For this reason, our recommendation does not include -K series CPUs unless the heat dissipated is limited to the TDP by choosing appropriate BIOS settings.
CPU temperatures depend on various different factors, so please take note of the explanations below and keep in mind that our recommendations can only serve as general guidelines for typical setups.
- Our recommendations are based on an ambient temperature of 25°C or less. If your ambient temperature is significantly higher (30°C or more), we don't recommend running the NH-L9i on 77W Ivy Bridge or 95W Sandy Bridge CPUs. For all other setups, please ensure good case ventilation when ambient temperature is 30°C or more.
- Our recommendations assume that the cooler is installed in a typically equipped, properly ventilated HTPC system. If you are using particularly hot components inside your system, it may be necessary to use stronger case ventilation to ensure sufficient CPU cooling performance.
- Our recommendations assume that the fan is used with PWM control (configured so that it can speed up to 100% when necessary) but without the supplied Low-Noise Adaptor. If you would like to use the NH-L9 with the supplied Low-Noise Adaptors, we recommend choosing CPUs with less than 65W TDP.
If you are a reseller or a system builder we offer special pricing on bulk orders of this product. Contact us at email@example.com or call Toll Free (877) 205-2020 for more information.