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Why not spare your hearing with Acoustic PC’s Quiet Computer Cooling and Soundproofing
Solutions. Acoustic PC Stocks Quiet Computer Parts. Quiet PC Fans, Quiet CPU Coolers, Quiet
Power Supply, Quiet Computer Cases, PC Sound Dampening insulation, Ant-vibration Noise
Reduction materials such as Silicone Fan Mounts, Sorbothane Feet for Ultra Low noise PC's. We
also sell Silent PC Hardware components and Gaming products such as Fanless Silent Video
cards, SSD Drives, Professional Gaming peripherals for serious Gamers. Audio products & more.
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Noctua NH-L9i Ultra Quiet Low Profile CPU Cooler
Noctua NH-L9i Ultra Quiet Low Profile CPU Cooler.
Noctua NH-L9i Ultra Quiet Low Profile CPU Cooler


Description
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.



Noctua NH-L9i Quiet CPU Cooler Features.

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 to 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 optimised 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.

Low-Noise Adaptor
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 Quiet CPU Cooler Technical Specification

Noctua NH-L9i Quiet CPU Cooler Specification
Socket compatibility        LGA1150, LGA1155, LGA1156, LGA 1150
Height (without fan)        23 mm
Width (without fan)         95 mm
Depth (without fan)        95mm
Height (with fan)        37 mm
Width (with fan)        95 mm
Depth (with fan)         95 mm
Weight (without fan)        345 g
Weight (with fan)        420 g
Material        Copper (base and heat-pipes), aluminium (cooling fins), soldered joints & nickel plating
Fan compatibility        92x92x14mm, 92x92x25mm

Scope of Delivery        
NF-A9x14 PWM premium fan
Low-Noise Adaptor (L.N.A.)
NT-H1 high-grade thermal compound
SecuFirm2™ Mounting Kit
Screws for 92x92x25mm fans
Noctua Metal Case-Badge
Warranty        6 years

Fan Specifications
Model        Noctua NF-A9x14 PWM
Bearing        SSO2
Max. Rotational Speed (+/- 10%)        2500 RPM
Max. Rotational Speed with L.N.A. (+/- 10%)         1800 RPM
Min. Rotational Speed (PWM)        300 RPM
Max. Airflow        57,5 m³/h
Max. Airflow with L.N.A.         40,8 m³/h
Max. Acoustical Noise        23,6 dB(A)
Max. Acoustical Noise with L.N.A.        14,8 dB(A)
Input Power        2,52 W
Voltage Range        12 V
MTBF        > 150.000 h


More Information

Datasheet for Noctua NH-L9i


Noctua NH-L9i: TDP Guidelines
Intel Sandy Bridge        65W or less        Suitable
95W        Recommended with good case ventilation only
Intel Ivy Bridge        65W or less        Suitable
77W        Recommended with good case ventilation and Intel Turbo Mode disabled only
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.
Noctua NH-L9i CPU Cooler included components.
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