Noctua NF-A6x25 5V PWM User manual

After you’ve identified the individual leads, please proceed
with the following steps to install the OmniJoin adaptor:
Installation
If you replace an existing 60mm fan with the NF-A6x25 in devices
such as storage or network solutions, it is usually best to use the
screws (or other mounting mechanism) used for the original fan.
When installing the NF-A6x25 as a case fan, you can either use
the supplied mounting screws or silicone anti-vibration mounts. In
order to install the fan using the silicone mounts, please first pull the
silicone mounts through the mounting holes of the case. Then put the
fan onto the silicone mounts and pull them through the mounting
holes of the fan:
Connection
The NF-A6x25 5V PWM features a standard 4-pin PWM fan connector.
However, please note that the fan can also be connected to standard
3-pin fan headers. When connected to 3-pin fan headers, the NF-
A6x25 5V PWM will run at full speed (no PWM control). If you would
like to connect the fan to a 2-pin fan header, please use the supplied
OmniJoin adaptor set as described below. Note that the NF-A6x25
5V PWM features an integrated polarity protection so there’s no risk
of damaging the fan due to reversed polarity. However, the fan will
not work when it is connected the wrong way around, so please make
sure that it is connected correctly when using 2-pin connections.
If you’re using multiple NF-A6x25 5V PWM fans, you can use the
supplied y-cable (NA-YC1) to connect several fans to one PWM fan
header. The NF-A6x25 5V 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).
NF-A6x25 5V PWM | User Manual
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-A6x25’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.
Using the OmniJoin adaptor set
The supplied OmniJoin adaptor set allows you to easily connect the
NF-A6x25 to proprietary fan headers if you want to replace a 60mm
fan in devices such as network or storage solutions.
Please first identify the individual leads of the OmniJoin adaptor and
the original fan. The OmniJoin adaptor uses black for ground (GND)
and red for +5V. The black lead of the adaptor has to be matched
with the original GND lead and the red adaptor cable with the original
+5V lead. Many fan cables use the same colours as the OmniJoin
adaptor, but please note that there is no guarantee for this, so make
sure to correctly identify the GND and +5V leads of the original fan.
Please refer to the manual that came with the device or contact the
device manufacturer if in doubt.
Step 1
Cut off the connector of the fan that was originally used in the device.
Make sure not to cut the cable directly at the connector, there should
be at least 2-3 centimetres of cable left:
Note that it is not necessary to remove the insulation from the cables.
Step 2
Then take one of the supplied 3M Scotchlok™ connectors and insert
the GND lead of the original cable and the black lead of the OminJoin
adaptor into the two holes of the Scotchlok™ connector. Make sure
that both leads are fully inserted and pushed all the way back.
Step 3
Then use flat nose pliers to push down the white button of the
Scotchlok™ connector. Make sure that the button is not jammed and
pushed all the way down. If the button is jammed, push it down from
both sides of the Scotchlok™ connector using the flat nose pliers.
After you’ve fixed the original fan’s cable to the OmniJoin adaptor
using the Scotchlok™ connectors, simply connect the NF-A6x25 to
the adaptor in order to use it in your device.
OmniJoin Adaptor
3M ScotchlokTM connectors
Connector of the original fan
+5V
GND Make sure to correctly
identify the GND and
+5V leads of the
original fan!
2-3cm minimum!
Repeat Step 2 and 3 for the +5V lead.
Caution: Being a 5V fan, the NF-A6x25 5V PWM can not be run at
12V and will be damaged when used with typical 12V power sources
such as PC mainboard fan headers.

www.noctua.at Designed in Austria, Noctua’s premium cooling components are internationally renowned for their superb qui-
etness, exceptional performance and thoroughgoing quality. Having received more than 3000 awards and
recommendations from leading hardware websites and magazines, Noctua’s fans and heatsinks are chosen by
more than a hundred thousand satisfied customers around the globe. [email protected] |www.noctua.at
geräuschoptimierte Premium-Komponenten
sound-optimised premium components
Dear customer,
Congratulations on choosing the Noctua NF-A6x25.
We from Noctua always strive to achieve superior quiet cooling
performance regardless of whether it’s a big 140mm fan or a small
40mm one. That’s why the NF-A6x25 sports many of the features
and advanced aerodynamic design measures of our award-winning
larger models, making it perhaps the most thoroughly optimised
60mm fan on the market. Each Noctua fan is double checked for
flawless operation by our quality control team before it leaves the
factory and I’m confident that you will be able to sense some of the
research, attention and care we’ve put into making this product.
Enjoy your NF-A6x25!
Yours sincerely,
Roland Mossig, Noctua CEO
This document includes some instructions
for installing, running and cleaning your
NF-A6x25. Should you have any further
questions, our support team (support@
noctua.at) will be glad to assist you at
any time.
USER MANUAL
Please also have a look at the regularly
updated FAQs on our website:
http://www.noctua.at/faqs
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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-A6x25, please
don’t hesitate to contact our support
team ([email protected]).