Noctua NF-A12x25 G2 PWM Fan Installation Guide
Designed in Austria
Introduction
Dear Customer, Congratulations on choosing the Noctua NF-A12x25 G2 PWM. Noctua fans are known for their impeccable quality and outstanding durability. The NF-A12x25 G2 PWM, like all Noctua fans, features an MTTF rating of over 150,000 hours and a 6-year manufacturer's warranty. Each fan undergoes a thorough quality control check before leaving the factory to ensure flawless operation. We are confident that you will appreciate the research and care invested in this product. Enjoy your NF-A12x25 G2 PWM!
Sincerely, Roland Mossig, Noctua CEO
This document provides instructions for the installation, operation, and cleaning of your NF-A12x25 G2 PWM. Should you encounter any difficulties during installation, please visit the FAQ section on our website (faqs.noctua.at) or contact our support team at support@noctua.at. This manual is available in various languages on our website: www.noctua.at/manuals
Included Parts
- NA-YC1: 4-Pin PWM Y-Cable
- NA-EC1: 30cm Extension Cable
- NA-RC7: 4x NA-AV2 Low-Noise Adapters (L.N.A.)
- NA-AVG1: Anti-Vibration Mountings
- 4x Fan Screws
1 Installation
Caution: Please remove the protective paper from the inside of the fan frame before use.
Before installing the fan, consider the desired airflow direction for your system. The fan's airflow direction is indicated by arrows on the fan frame. When installing the fan in a PC, also pay attention to the position of the fan connectors on your motherboard to determine the best fan orientation for effective cable management.
To install the NF-A12x25 G2 PWM onto a CPU cooler or water cooling radiator, please use the mounting hardware (fan clips, screws, etc.) supplied with the respective product.
The included NA-AVG1 gasket can be used instead of the pre-installed anti-vibration pads to achieve optimal cooling performance with water cooling radiators and other applications that benefit from a tighter seal with the fan.
When replacing an existing 120mm fan in other devices with the NF-A12x25 G2 PWM, it is generally recommended to use the original fan's mounting hardware (screws, etc.).
When mounting the NF-A12x25 G2 PWM as a case fan, you can use either the supplied mounting screws or the NA-AV2 silicone anti-vibration mountings.
Mounting with screws: Insert the screw from the fan side (F) through the fan's mounting hole and then through the case's mounting hole. Screw the nut onto the screw from the other side.
Mounting with NA-AV2 anti-vibration mountings: Insert the mounting pin through the fan's mounting hole. Then pull the pin through the case mounting hole. If the long ends of the mounting pins interfere, they can be trimmed with scissors after installation. However, re-mounting with trimmed ends will be significantly more difficult.
If you prefer anti-vibration mountings that sit flush on the case side, please purchase the optional NA-AV4 mountings.
2 Connection
The NF-A12x25 G2 PWM features a 4-pin PWM connector for automatic speed control via your motherboard's 4-pin PWM headers. Please note that the fan can also be operated on 3-pin fan headers. If you operate the NF-A12x25 G2 PWM on a 3-pin header, the fan will run at full speed (unless your motherboard supports voltage-based speed control).
If you are using multiple NF-A12x25 G2 PWM fans, you can use the included Y-cable (NA-YC1) to connect multiple fans to a single PWM header. This allows your motherboard to control the speed of all fans identically.
The NF-A12x25 G2 PWM comes with a short 20cm primary cable to avoid cable clutter in typical applications. If you need a longer cable, connect the included 30cm extension cable (NA-EC1).
The NF-A12x25 G2 PWM includes a Low-Noise Adapter (NA-RC7) that allows the maximum speed to be reduced from 1800rpm to 1500rpm. You can either use the adapter to run the fan at a constant 1500rpm (if your motherboard's speed control is disabled) or to cap the maximum speed at 1500rpm when using PWM control.
3 Cleaning and Maintenance
Dust often accumulates on fans used in computer cases over time. To ensure maximum fan performance, please clean it regularly with a feather duster, damp cloth, or compressed air spray. Please be careful not to apply excessive force to avoid damaging the fan. Do not use a vacuum cleaner, as this can lead to excessive stress on the fan.
When using a compressed air spray, please hold the fan blades firmly to prevent them from spinning at very high speeds, which could cause bearing damage.
To ensure flawless operation for many years and prevent the ingress of even the smallest dust particles, the SSO2 premium bearing of the NF-A12x25 G2 PWM is completely sealed. Please note that the fan must not be disassembled by the customer. Removing the rotor from the frame will destroy the seal and void the warranty.
4 Warranty, Support and FAQs
Even with high-quality products and strict quality controls, the possibility of a warranty claim can never be entirely ruled out. Therefore, we have made it our goal to offer you the greatest possible reliability and convenience through a 6-year warranty period and direct, fast, and uncomplicated warranty processing.
Do not hesitate to contact our support team at support@noctua.at if you encounter any problems using your NF-A12x25 G2 PWM.
Please also consult the FAQ section on our website: faqs.noctua.at
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