noctua NF-A12x25 PWM Premium Quiet Fan User Manual
- June 5, 2024
- Noctua
Table of Contents
noctua NF-A12x25 PWM Premium Quiet Fan
Installation
For installing the NF-A12x25 LS-PWM on a CPU heatsink or watercooling
radiator, please use the fan mounting mechanism supplied with said
product (fan clips, screws, etc.). For optimal cooling performance on
watercooling radiators, it is recommended to change the stock NA-AVP1 anti-
vibration pads for the included NA-AVG1 anti-vibration gasket in order to
reduce air loss between the fan and the radiator:
The NA-AVG1 gasket can also be used for other applications that benefit from a tighter seal with the fan. If you replace an existing 120mm fan with the NF- A12x25 LS-PWM in other devices, it is generally recommended to fix it with the screws (or other mounting mechanism) used for the original fan. When installing the NF-A12x25 LS-PWM as a case fan, you can either use the supplied mounting screws or NA-AV2 silicone anti-vibration mounts.
For installing the fan using the NA-AV2 mounts, please first pull the F side
through the fan’s mounting holes and then pull the C side through
the mounting holes of the case:
If the long ends of the mounts are in the way, you can use scissors to cut
them after installation. Note that this will then make them difficult
to reinstall in the future.
If you prefer anti-vibration mounts with flat case-side ends, please purchase the optional NA-AV4 mounts.
Connection
The NF-A12x25 LS-PWM comes with a 4-pin PWM fan connector for fully automatic
speed control via your motherboard’s 4-pin PWM fan
headers. Please note that the fan can also be connected to 3-pin fan headers
though. When connected to 3-pin fan headers, the NF-A12x25 LS-PWM will run at
full speed (unless the motherboard supports voltage based speed control). If
you’re using multiple NF-A12x25 LS-PWM fans, you can use the supplied y-cable
(NA-YC1) to connect several fans to one PWM fan header. This way, your
motherboard will set all the connected fans to run at the same speed. The NF-
A12x25 LS-PWM features a short 20cm primary cable in order to help you
minimise cable clutter in typical applications. If you need a longer cable,
please add the supplied 30cm extension (NA-EC1). The NF-A12x25 LS-PWM comes
with a Low-Noise Adaptor (NA-RC8) that allows you to reduce the fan speed from
1200 to 900rpm. You can either use the adaptor to set the fan to a fixed speed
of 900rpm (if speed control is deactivated) or to cap the maximum speed to
900rpm during PWM speed control.
Cleaning and Maintenance
Fans inside computer cases tend to accumulate dust over longer periods of
usage. In order to maintain maximum performance, please clean your
fans regularly using a duster, slightly moist tissue or canned air. Please be
careful not to use too much force in order to prevent any damage to
the fan. Please don’t use a vacuum cleaner as this may apply excessive force
to the fan. In order to ensure flawless operation over many years of usage,
the NF-A12x25 LS-PWM’s premium grade SSO2 bearing is fully sealed to prevent
the entering of fine dust particles. Please note that the fan is not designed
to be taken apart by the user. Removing the impeller from the frame will break
the sealing of the bearing and results in a loss
of warranty.
Warranty and Support
Even with high-grade products and strict quality control, the possibility of
defects cannot be eliminated entirely. Therefore, we aim at providing the
highest possible level of reliability and convenience by offering a warranty
period of 6 years and direct, fast and straightforward RMA service.
Should you encounter any problems with your NF-A12x25 LS-PWM, please don’t
hesitate to contact our support team