heading

Dotado de medidas avanzadas de diseño aerodinámico, como canales de aceleración de flujo (Flow Acceleration Channels) y el marco AAO de Noctua, el NF-A6x25 es un ventilador silencioso, de primera calidad y altamente optimizado con un tamaño de 60 x 25 mm. La versión PWM usa el NE-FD1 IC especialmente diseñado por Noctua para un control de velocidad totalmente automático mediante conectores de ventilador de 4 pines y está provisto de un Adaptador de Reducción de Ruido que reduce la velocidad máxima de 3000 a 2100 rpm durante el control PWM. La magnífica suavidad en su funcionamiento, el rodamiento SSO2 y la reconocida calidad de Noctua lo convierten en una opción de primer orden para las más elevadas exigencias.

Detalles
Tamaño reducido del cubo del motor

Tamaño reducido del cubo del motor

Gracias a su diseño simplificado y compacto del motor, el cubo del motor del NF-A6x25 es más pequeño que el de los ventiladores convencionales de 6 cm. Esto hace posible una superficie de aspas mayor y, por tanto, contribuye al mayor flujo de aire y rendimiento de presión del ventilador.
Canales de aceleración del flujo

Canales de aceleración del flujo

El impulsor del NF-A6x25 cuenta con canales de aceleración del flujo en el lado de succión. Al acelerar el flujo de aire en la parte exterior de las aspas más importante, se reduce la separación del flujo en el lado de succión y, por tanto, se consigue una mejor eficiencia y menor ruido de vórtice.
Marco AAO

Marco AAO

Los marcos AAO (optimización acústica avanzada) de Noctua cuentan con almohadillas antivibración integradas, así como con el diseño de entrada paso a paso y las microestructuras de superficie internas (ambos propiedad de Noctua), que perfeccionan aún más la eficiencia sonora y el rendimiento del ventilador.
Diseño de entrada paso a paso

Diseño de entrada paso a paso

El diseño de entrada paso a paso de Noctua añade turbulencia a la entrada de aire para facilitar la transición de flujo laminar a flujo turbulento, lo que reduce el ruido de entrada tonal, mejora la adjunción de flujo e incrementa la capacidad de succión, especialmente en entornos con espacio restringido.
Microestructuras de superficie interna

Microestructuras de superficie interna

Con los extremos de las aspas del ventilador en colisión con la capa límite creada por las Inner Surface Microstructures (microestructuras de superficie interna), la separación del flujo desde el lado de succión de las aspas mengua de forma significativa, lo que resulta en un ruido de paso entre las aspas menor, mejor flujo de aire y mayor eficiencia de presión.
Almohadillas antivibración integradas

Almohadillas antivibración integradas

Las almohadillas antivibración integradas, fabricadas en silicona extrasuave, minimizan la transmisión de las vibraciones por minuto, a la vez que mantienen la compatibilidad con todos los tornillos estándar y otros sistemas de montaje.
Rodamientos SSO2

Rodamientos SSO2

El NF-A6x25 cuenta con la segunda generación, aún más optimizada, de los renombrados rodamientos SSO de Noctua, de eficacia probada. Con SSO2, el imán trasero se coloca más cerca del eje para proporcionar mejor estabilización, precisión y durabilidad.
PWM IC de diseño propio con SCD (Unidad de Conmutación Suave)

PWM IC de diseño propio con SCD (Unidad de Conmutación Suave)

Con soporte total para un control de velocidad PWM automático, el NF-A6x25 PWM usa el nuevo NE-FD1 PWM IC de diseño propio de Noctua que se integra con la tecnología Smooth Commutation Drive (SCD, Unidad de Conmutación Suave). Proporcionando impulsos de par más suaves, el SCD disminuye los ruidos de cambios del PWM y hace que el ventilador funcione de forma más silenciosa a velocidades bajas.
Low-Noise Adaptor (Adaptador de Reducción de Ruido)

Low-Noise Adaptor (Adaptador de Reducción de Ruido)

El NF-A6x25 PWM viene con un Low-Noise Adaptor L.N.A. (adaptador de reducción del ruido) que reduce la velocidad máxima del ventilador de 3000 a 2100 rpm. El L.N.A. se puede usar tanto para usar el ventilador a una velocidad fija de 2100 rpm como para fijar una velocidad máxima al usar el control de PWM automático.
Opciones de Cableado Extensible

Opciones de Cableado Extensible

El corto cable principal de 20cm del ventilador minimiza el lío de cables en situaciones típicas mientras que el cable de extensión de 30cm que se suministra permite un alcance extra cuando resulta necesario. Ambos cables están totalmente forrados.
6 años de garantía del fabricante

6 años de garantía del fabricante

Los ventiladores de Noctua son reconocidos por su impecable calidad y destacada longevidad. Al igual que todos los demás ventiladores Noctua, el NF-A6x25 ofrece un tiempo medio de vida entre fallos (MTBF) de más de 150 000 horas y viene con una garantía total del fabricante de 6 años.
NF-A6x25 PWM
Especificaciones ventilador
Dimensiones
60x60x25 mm
Espacio entre orificios de montaje
50x50 mm
Conexión
4 pines
Rodamiento
Geometría de las aspas
Tecnología del marco
Velocidad de rotación (+/-10%)
3000 RPM
Velocidad de rotación con L.N.A. (+/-10%)
2100 RPM
Velocidad de rotación min. (PWM, +/-20%)
550 RPM
Sonoridad
19,3 dB(A)
Sonoridad con L.N.A.
13,7 dB(A)
Presión estático
2,18 mm H₂O
Presión estático con L.N.A.
1,29 mm H₂O
Potencia max.
0,96 W
Amperaje max.
0,08 A
Voltaje
12 V
MTTF
> 150.000 h
Volumen de entrega
  • Adaptador para reducción del ruido (L.N.A.)
  • Cable de 4 pines en forma de Y
  • Cable de extensión de 30 cm
  • 4 Vibration-Compensators
  • 4 tornillos de ventilador
Garantía
6 años
NF-A6x25 PWM
NF-A6x25 PWM Video
A-Series fans
08.11.2015 // AndroidPC.es
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NF-A6x25 PWM Opinión

Después de probar los modelos NF-A6x25 PWM, NF-A6x25 FLX, NF-A4x10 FLX y NF-A4x10 5V nos dan ganas de dejar un ventilador en nuestras placas pasivas, pero preferimos no hacerlo, como ya sabéis nos gustan los sistemas pasivos. Ciertamente es estos productos pueden ofrecen una mejora térmica en nuestros dispositivos si vamos a exprimirlos y además no nos molestan con ruidos. Si tenemos algún modelo pasivo con problemas térmicos añadirle un pequeño ventilador bien dimensionado siempre es una solución, sobretodo si tienen la calidad de estos modelos.
Resultado del análisis: "Los recomendamos sin ninguna duda para quien quiera mejorar el rendimiento de su miniPC o AndroidPC con problemas térmicos." (Joaquin Prida Trujillo, AndroidPC.es)
15.04.2015 // ByTheWay.gr
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NF-A6x25 PWM Opinión

Κλείνοντας,οι επιδόσεις του νέου NF-A6x25 PWM είναι εξαιρετικές. Καταφέρνει να έχει σπουδαίες επιδόσεις και εξαιρετικά επίπεδα θορύβου με τον low noise adapter που προσφέρει η εταιρία. Set it and forget it προσέγγιση και μπορούμε να εγγυηθούμε το "forget it" κομμάτι. Η επιμονή στην λεπτομέρεια της Noctua είναι προφανής. Μερικές από τις αναφερόμενες τεχνολογίες θυμίζουν μελέτες αεροδυναμιστών παρά κατασκευαστών computer parts και η παρεχόμενη εγγύηση των 6 ετών είναι χωρίς προηγούμενο σε μια αγορά που η 3ετής πλέον θεωρείται πολυτέλεια. Σκεφτείτε το, το 2020 οι ανεμιστήρες σας θα είναι ακόμα εντός εγγύησης και μάλιστα από μια εταιρία που συνηθίζει να την τιμά, χωρίς αστείες δικαιολογίες.
Resultado del análisis: "Η Noctua δείχνει ότι δεν αγχώνεται να διώξει το premium χαρακτήρα της ούτε από την τιμολογιακή της πολιτική, και ειλικρινά δεν περιμέναμε κάτι διαφορετικό εκεί. Όμως, αυτό που έχουμε να παρατηρήσουμε είναι η κορυφαία ποιότητα κατασκευής σε συνδυασμό με τον εξαιρετικό σχεδιασμό που επιφέρουν καλύτερες επιδόσεις, ενώ ταυτόχρονα μπορούν και προσφέρουν ήσυχη και απρόσκοπτη λειτουργία ακόμα και σε πολύωρη χρήση." (Nasioulis Evangelos, ByTheWay.gr)

NA-FC1

  • Controlador compacto y altamente flexible para ventiladores PWM de 4 pines
NF-A6x25 PWM

NA-SAC5

  • Cable adaptador para ventiladores S-ATA de hasta 4 pines
NF-A6x25 PWM

NA-SEC1

  • Cables de extensión de 4 pines
NF-A6x25 PWM

NA-SAV2

  • Soportes anti-vibración
NF-A6x25 PWM

Manual de instalación (PDF)

Hoja de datos (PDF)

What pin configuration do Noctua 12V fans use?

All Noctua fans feature the standard pin-configurations set out in the Intel and AMD specifications. These standard pin-configurations are used on most mainboards and fan controllers today:

pin configuration

Can I use Noctua fans in my system from Acer, Apple, Dell, HP, Lenovo or other major brands?

Noctua 12V fans comply with the established specifications for standard PC systems issued by Intel and AMD. Systems from Acer, Apple, Dell, HP, Lenovo or other major brands often deviate from these specifications e.g. by using proprietary fan headers, custom pin-alignments or pin-configurations, different methods of fan speed control, etc. This can lead to compatibility issues when using Noctua fans in systems from said brands. Some of these problems can be avoided with some technical knowledge, but especially BIOS related issues (e.g. errors or shutdowns due to low fan speed) can often not be resolved. As a result, Noctua does not officially support systems from Acer, Apple, Dell, HP, Lenovo or other major brands.

Can Noctua fans be used to replace noisy stock fans in NAS devices?

Noctua fans such as the 40, 60, 80 or 92mm NF-A series models are ideal for replacing noisy stock fans in NAS devices in order to make them quieter and thousands of users have managed to significantly reduce the noise levels of their NAS units this way. However, while it is easy and straightforward to replace the fans in some cases, it can be very difficult in others, so Noctua strongly recommends that users carefully research if it is possible to easily replace the fan(s) of their NAS device before purchasing a Noctua fan for this purpose. Some of the common issues that can occur when replacing NAS fans are:

  • Different pin assignment: Whereas Noctua fans use the standardised pin assignment for PC fans (see this FAQ for details), some NAS units use different assignments. For example, some devices have the power and GND or rpm and PWM pins swapped. Therefore please carefully verify that your NAS device uses the same pin assignment as standard fans. Experienced users may also change the pin assignment by cutting and resoldering the fan cables, but please note that this will void your Noctua manufacturer’s warranty.
  • Different pin functions: Noctua fans use the standardised pin functions for PC fans (see this FAQ for details); however, some NAS units use fans where certain pins serve a different function. For example, some devices use the RPM pin for “power good” signals. Therefore please carefully verify that your NAS device uses the same pin functions.
  • Firmware speed control: Some NAS devices demand a certain maximum or minimum fan speed. If the new fan doesn’t have the same or similar maximum or minimum speed, the device may display errors or even shut down.
  • Different starting voltage: Most NAS devices use voltage-based speed control. If the new fan has a higher starting voltage than the original fan, it may not start up right away. This may lead the NAS device to display errors or even shut down because it suspects a fan failure.
  • Different power draw: Some NAS devices monitor the fan’s power draw. If the new fan has a lower power consumption than the stock fan, the device might display errors or even shut down.

Please note that most NAS manufacturers don’t provide detailed documentation regarding fan compatibility and control, so users who want to replace the fans of their devices usually have to rely on “How to” guides, blog and forum posts or video tutorials. For example, there are excellent video tutorials available for changing the fans in popular Synology NAS models (DS416j, DS1515+ and DS1812+ in English, DS416/DS415/DS916/DS216/DS214 and DS1515+ in German). Please also note that fan compatibility and control can vary from model to model and even from revision to revision even if the devices stem from the same manufacturer. As a result, it is important to make sure that the information or guidelines you rely on when replacing your NAS fan are applicable to your specific model as well as your specific hardware and firmware revision.

Due to the possible issues listed above, Noctua recommends that only experienced users attempt to replace their NAS fans. Please note that since there are so many different NAS models and most of them lack documentation for aspects such as fan compatibility and control, Noctua customer support cannot assist you with compatibility issues when replacing NAS fans. Please contact your NAS manufacturer for any questions regarding aspects such as the device’s pin alignment or fan monitoring and control.

Which Noctua fan or CPU cooler should I buy? How to choose the right model?

Not sure which Noctua product to buy? Our detailed buying guides for fans and CPU coolers help you to choose the model that works best for you.

How can I check if my 4-pin fan header supports PWM?

Some mainboards feature 4-pin fan headers that actually don‘t use a PWM signal on Pin 4 to control the fan speed but rather reduce the voltage on Pin 2 (like a standard 3-pin fan header). As the fan speed at minimum voltage is usually higher than the speed at 20% PWM duty cycle, the fan can not reach as low minimum speeds under voltage control as under PWM control. Please refer to your mainboard manual to check whether or not your mainboard has 4-pin fan headers that control the fan speed by reducing voltage on Pin 2 rather than by changing the PWM duty cycle on Pin 4:

4 pin fan header types

Note that mainboard manufacturers use different terms to indicate that Pin 4 is not being used for PWM control (e.g. “+5V”, “VCC” or “NC”), but if one of these terms is used, you can be sure that the fan header does not support PWM. If Pin 4 is described as “Speed Control” or “PWM” or the like, you can be sure that the fan header supports PWM.

Unfortunately, the description of Pin 2 is not always a clear indication as some manufacturers use terms such as “Fan PWR” or “Power” for both types of fan headers. However, if Pin 2 is described as “Speed Control”, you can also be sure that the fan header does not support PWM based speed control. If Pin 2 is described as “+12V”, this is a clear indication that the fan header supports PWM.

Please also note that in some cases, the descriptions of the pin layouts in the mainboard manuals may not be correct and some models actually allow you to switch the fan headers from voltage control mode to PWM control mode in the BIOS even though the pin descriptions do not indicate PWM support. We thus recommend to look for these options in the BIOS before taking other measures. In case of doubt, please contact your mainboard manufacturer.


If your mainboard features other 4-pin fan headers that use PWM for speed control, you can run multiple fans from these headers using Y-split cables. Make sure not to exceed the specified maximum power draw of the fan headers (usually 10-12W) though.

How should I clean my Noctua fan?

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 do not use a vacuum cleaner as this may apply excessive force to the fan and do not put the fan under running water as water residues inside the motor may lead to short circuits.
In order to ensure flawless operation over many years of usage, Noctua’s premium grade SSO bearings are 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.

Can I run 4-pin PWM fans on 3-pin fan headers?

PWM fans come with a 4-pin connectors for fully automatic speed control via your mainboard’s 4-pin PWM fan headers. Please note that 4-pin fans can also be connected to your mainboard’s 3-pin fan headers though. When connected to 3-pin fan headers, the fan will run at full speed (unless the mainboard supports voltage based speed control).

Can I disassemble my fan for cleaning (or other purposes, e.g. painting)?

In order to ensure flawless operation over many years of usage, all Noctua fans come with a premium grade SSO bearing, which 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.

It is thus recommended to clean your fans 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.

How big is the NH-D15S and how much clearance does it provide for RAM and mainboard heatsinks? Copy

Yes, Low-Noise Adaptors (L.N.A.s) can be used with y-cables, but please make sure to use one L.N.A. per fan and to place the L.N.A.s between the y-cable and the fans as shown below. Never use one L.N.A. for two (or more fans) by placing it between the mainboard and the y-cable!

D15S

I'm experiencing fan speed issues with my motherboard from Supermicro, what can I do?

The BIOS of many motherboard models from Supermicro expects a certain minimum fan speed (usually 700rpm), which is higher than the minimum fan speed that can be achieved with Noctua's PWM fan models. The BIOS may interpret the low minimum RPM of Noctua fans as a fan error and thus try to run the fan at 100% for a short period before going back to automatic control.. This can result in oscillating fan speeds and fan speed warnings in the BIOS or the fan management console.

Unfortunately there is usually no option to set a lower minimum value that would suit the low minimum speed of Noctua PWM fans.The issue can thus only be resolved by either disabling automatic fan speed control in BIOS, which will cause the fans to run at a constant speed, or by requesting a modified BIOS file from Supermicro, which takes the minimum fan speed of Noctua fans into account (charges might apply).

Can Noctua fans be used to replace noisy stock fans in switches, routers or other network devices?

Noctua fans such as the 40, 60, 80 or 92mm NF-A series models are ideal for replacing noisy stock fans in switches, routers and other network devices in order to make them quieter and thousands of users have managed to significantly reduce the noise levels of their units this way. However, while it is easy and straightforward to replace the fans in some cases, it can be very difficult in others, so Noctua strongly recommends that users carefully research if it is possible to easily replace the fan(s) of their network device before purchasing a Noctua fan for this purpose. Some of the common issues that can occur when replacing pre-installed fans are:

  • Different pin assignment: Whereas Noctua fans use the standardised pin assignment for PC fans (see this FAQ for details), some network devices use different assignments. For example, some devices have the power and GND or rpm and PWM pins swapped. Therefore please carefully verify that your device uses the same pin assignment as standard fans. Experienced users may also change the pin assignment by cutting and resoldering the fan cables, but please note that this will void your Noctua manufacturer’s warranty.
  • Different pin functions: Noctua fans use the standardised pin functions for PC fans (see this FAQ for details); however, some network devices use fans where certain pins serve a different function. For example, some devices use the RPM pin for “power good” signals. Therefore please carefully verify that your device uses the same pin functions.
  • Firmware speed control: Some network devices demand a certain maximum or minimum fan speed. If the new fan doesn’t have the same or similar maximum or minimum speed, the device may display errors or even shut down.
  • Different starting voltage: Most network devices use voltage-based speed control. If the new fan has a higher starting voltage than the original fan, it may not start up right away. This may lead the device to display errors or even shut down because it suspects a fan failure.
  • Different power draw: Some network devices monitor the fan’s power draw. If the new fan has a lower power consumption than the stock fan, the device might display errors or even shut down.

Please note that most network device manufacturers don’t provide detailed documentation regarding fan compatibility and control, so users who want to replace the fans of their devices usually have to rely on “How to” guides, blog and forum posts or video tutorials. Please also note that fan compatibility and control can vary from model to model and even from revision to revision even if the devices stem from the same manufacturer. As a result, it is important to make sure that the information or guidelines you rely on when replacing your fans are applicable to your specific model as well as your specific hardware and firmware revision.

Due to the possible issues listed above, Noctua recommends that only experienced users attempt to replace their pre-installed fans in network devices. Please note that since there are so many different devices and most of them lack documentation for aspects such as fan compatibility and control, Noctua customer support cannot assist you with compatibility issues when replacing pre-installed fans. Please contact your network device manufacturer for any questions regarding aspects such as the device’s pin alignment or fan monitoring and control.

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