Noctua NF-A12x25 G2 PWM SX2-PP Handleiding

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NOCTUA NF-A12x25 G2 PWM Sx2-PP

INSTALLATION MANUAL

This document includes some instructions for installing,

running and cleaning your NF-A12x25 G2 PWM Sx2-PP

fan set.

Should you encounter any difficulties, please check the

FAQs on our website (faqs.noctua.at) and don’t hesitate to

contact our support team at support@noctua.at.

Multilingual versions of this manual are available on our

website: www.noctua.at/manuals

Dear customer,

Thank you very much for choosing the Noctua NF-A12x25

G2 PWM Sx2-PP.

The NF-A12x25 G2 PWM Sx2-PP is a set of two NF-

A12x25 G2 PWM square-frame 120mm fans for push-pull

operation such as on water cooling radiators.

When two fans operate in a push-pull configuration

running at the exact same speed, their acoustic interaction

can lead to undesirable harmonics phenomena such as

intermittent vibrations or periodic humming. Therefore,

the two NF-A12x25 G2 PWM fans contained in the Sx2-PP

set are slightly offset in speed (+/- ~25rpm) in order to

ensure optimal acoustics in push-pull configurations.

Enjoy your NF-A12x25 G2 PWM Sx2-PP fans!

Yours sincerely,

Roland Mossig, Noctua CEO

Included mounting parts:

2x NA-EC1

30cm extension cables

8x NA-AV2

anti-vibration mounts

2x NA-RC7

Low-Noise Adaptors (L.N.A.)

NA-YC1

4-pin PWM splitter cable

2x NA-AVG1

anti-vibration gaskets

8x fan screws

Caution: Please remove the protective paper from the inside

of the fan frames before use.

Before installing the fan, consider the desired airflow

direction for your setup. The fan’s airflow direction is

indicated by arrows on the fan frame.

When using the fan in a PC, also take note of the placement

of the fan headers on your motherboard. This will help

you determine the best fan orientation for effective cable

management.

For installing your NF-A12x25 G2 PWM fans on a CPU

heatsink or watercooling radiator, please use the fan

mounting mechanism supplied with said product (fan clips,

screws, etc.).

The included NA-AVG1 gasket can be used instead

of the pre-installed anti-vibration pads for optimal

cooling performance on watercooling radiators and other

applications that benefit from a tighter seal with the fan.

To replace an existing 120mm fan with the NF-A12x25 G2

PWM in other devices, it is generally recommended to use

the original fan‘s mounting hardware (screws etc.).

When installing the NF-A12x25 G2 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.

Installation

1

F = fan side C = case side

If you prefer anti-vibration mounts with flat case-side ends,

please purchase the optional NA-AV4 mounts.

Then turn the fan around and 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.

Connection

2

The NF-A12x25 G2 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

G2 PWM will run at full speed (unless the motherboard

supports voltage based speed control).

If you’re using multiple NF-A12x25 G2 PWM fans, you can

use the supplied splitter 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 G2 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 G2 PWM comes with a Low-Noise Adaptor

(NA-RC7) that allows you to reduce the fan speed from

1800 to 1500rpm. You can either use the adaptor to set

the fan to a fixed speed of 1500rpm (if speed control is

deactivated) or to cap the maximum speed to 1500rpm

during PWM speed control.

Cleaning and maintenance

3

Fans inside computer cases tend to accumulate dust over

longer periods of usage. 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. When using compressed air to clean the fan, hold

the fan blades to prevent them from spinning at high speeds

and avoid bearing damage.

To ensure flawless operation over many years of usage, the

NF-A12x25 G2 PWM 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.

Product specificaties