Wednesday, April 18, 2012

Noctua NF-F12 PWM Fan Review


Noctua, the computer hardware manufacturer of CPU coolers, and case fans, mostly designed with PC enthusiasts in mind, supplied us with their latest NF-F12 PWM case fan. Noctua has really dedicated all their time and research into designing and testing the NF-F12 PWM fan. This outstanding PWM case fan delivers rapid amounts of air while operating at an extremely low noise level, especially when running at full speed. Noctua definitely reinvents the wheel this time around with their NF-F12 PWM fan. This fan will cost you around $25, and even though it sounds a little high, its definitely worth it. Let’s take a closer look at the packaging and specifications.










Noctua did a very nice job on the packaging of the NF-F12. The box has two Velcro strapped doors, one on each side of the box so you can look inside and see what’s included in the box, while also allowing consumers to read the specification information located on both front and back flaps. They provide a few animations of how the NF-F12 performs like, thermal imaging, airflow visualization, and Noctua also includes an exploded view of the NF-F12 case fan.

The NF-F12 PWM fan comes in a plastic package that holds both the fan and all its accessories. The package includes a manual, Noctua NF-F12 PWM fan, mount screws, anti-vibration mounts, a 4-pin Y slitter, a Low-Noise Adapter (L.N.A), and a 30 cm 4-pin extension cable. The Low-Noise Adapter allows fan speeds to be reduced from 1500 RPM to 1200 RPM speed, to produce a lower operating noise level without affecting performance. If loud case fan noise bothers you, this LNA will suit your needs, even though the Noctua NF-F12 its still super quiet without it.






This is where all the magic happens; we will get into what makes the Noctua NF-F12 so much more advanced than other fans out there. The NF-F12’s dimensions are 120 x 120 x 25 mm and is put to use where high static pressure and airflow are needed the most, like CPU heatsinks and water cooling radiators. The 4-pin PWM fan connection, used for controlling fan speeds, is sleeved from the fan all the way to the connector; definitely nice that they include this. The NF-F12 uses a new 7 blade impeller design called Heptaperf that goes hand in hand with Noctua’s focused flow technology; Focused flow technology focuses the airflow to flow straight through the fans base, delivering a more clean and direct flow of air to a desired area.





The Noctua NF-F12 features a stepped inlet design to deliver a more turbulent airflow into the fans path; this improves overall airstream compression, while also allowing the NF-F12 to operate at a lower noise level. Inner Surface Microstructures significantly suppress flow separation from the suction side of the blades, this helps improve airflow and static pressure efficiency on the suction side, while also limiting fan noise. The Stator guide vanes are set in a varying angular distance and also feature Vortex-Control Notches. Both are there to help spread noise emissions over a wider amount of space; this allows the fan to be more agreeable to the human ear. 





The Noctua NF-F12 PWM uses a second generation SSO2 full metal bearing that is machined from solid brass; this allows the NF-F12 to have a longer lifespan while also improving fan blade stability.  Another way Noctua improves on the NF-F12’s stability is by placing the motor magnet closer to the fan blade’s shaft. The new NE-FD1 PWM IC incorporates SCD technology; this reduces noise at low fan speeds, considering the NF-F12 PWM can run as low as 300 RPM. 




The NF-F12 incorporates four rubber vibration pads at each corner of the fans base to keep vibration at a minimum along with included vibration dampening when using the four included Anti-Vibration mounts. This is a great addition especially when mounting the NF-F12 on a side panel, which causes the plastic to directly touch the metal panel. With the pads installed fan vibration is entirety eliminated.






Specifications:

Size
120x120x25 mm
Connector
4-pin PWM
Bearing               
SSO2
Blade Geometry
Heptaperf™
Frame Technology
Focused Flow™
Rotational Speed (+/- 10%)
1500 RPM
Rotational Speed with L.N.A. (+/- 10%)
1200 RPM
Min. Rotational Speed (PWM)
300 RPM
Airflow
93,4 m³/h
Airflow with L.N.A
74,3 m³/h
Acoustical Noise
22,4 dB(A)
Acoustical Noise with L.N.A.
18,6 dB(A)
Static Pressure 
2,61 mm H2O
Static Pressure with L.N.A.
1,83 mm H2O
Max. Input Power
0,6 W
Max. Input Current
0,05 A
Voltage               
12 V
MTBF
> 150.000 h
Scope of Delivery
Low-Noise Adapter (L.N.A.)
    4-Pin Y-Cable
    30cm Extension Cable
    4 Vibration-Compensators
    4 Fan Screws
Warranty
6 years


 Details:

Focused Flow™ Frame
Designed for pressure demanding applications such as heatsinks and radiators, the Focused Flow™ frame features eleven stator guide vanes that straighten, channel and focus the airflow, which allows the NF-F12 to rival the performance of conventional fans running at much faster speeds. 

Varying Angular Distance and Vortex Control Notches
The NF-F12’s stator guide vanes are set out in Varying Angular Distance and feature Vortex-Control Notches. Both measures help to spread the noise emission over a broader frequency spectrum and thus make the fan’s sound pattern more agreeable to the human ear. 

Heptaperf™ Impeller
Custom designed for the new Focused Flow™ frame and to work in tandem with the eleven stator guide vanes, the NF-F12’s seven blade Heptaperf™ impeller has been carefully optimized to achieve a perfect balance between power and quietness.

Stepped Inlet Design
Noctua’s Stepped Inlet Design adds turbulence to the influx in order to facilitate the transition from laminar flow to turbulent flow, which reduces tonal intake noise, improves flow attachment and increases suction capacity, especially in space restricted environments. 

Inner Surface Microstructures
With the tips of the fan blades ploughing through the boundary layer created by the Inner Surface Microstructures, flow separation from the suction side of the blades is significantly suppressed, which results in reduced blade passing noise and improved airflow and pressure efficiency.

Integrated Anti-Vibration Pads
Integrated Anti-Vibration Pads made from extra-soft silicone minimize the transmission of minute vibrations while maintaining full compatibility with all standard mounting systems and fan clips used on heatsinks. 

SSO2 Bearing
The NF-F12 is the first fan to feature the further optimized second generation of Noctua’s renowned, time-tested SSO bearing. With SSO2, the rear magnet is placed closer to the axis to provide even better stabilization, precision and durability.

Metal bearing shell
In order to guarantee the highest possible degree of manufacturing precision, minimum tolerance and excellent long-term stability, the NF-F12 sports a CNC milled bearing shell made entirely from brass. 

Custom designed PWM IC with SCD
Supporting fully automatic PWM speed control, the NF-F12 uses Noctua’s novel, custom designed NE-FD1 PWM IC that integrates Smooth Commutation Drive (SCD) technology. By providing smoother torque impulses, SCD suppresses PWM switching noises and thus makes the fan quieter at lower speeds. 

Ultra-Low Power Consumption
The NF-F12 draws only 0.6W, which is more than 50% less than many fans in the same speed range. This doesn’t only make it eco-friendly but also cuts down the electricity bill: Compared to a typical 2W fan, this allows you to save about half the price of the NF-F12 after 
5 years of continuous use.

Low-Noise Adaptor
The NF-F12 is supplied with a Low-Noise Adaptor (L.N.A.) that reduces the maximum fan speed from 1500 to 1200rpm. The L.N.A can be used either to run the fan at a fixed speed of 1200rpm or to cap the maximum speed when using automatic PWM control.

Extensive Cabling Options
The fans short 20cm primary cable minimizes cable clutter in typical applications while the supplied 30cm extension provides extended reach when necessary. Both cables are fully sleeved and a 4-pin y-cable allows connecting a second NF-F12 fan to the same PWM fan 
header for automatic control.

6 years manufacturers warranty
Noctua fans are renowned for their impeccable quality and outstanding longevity. Like all Noctua fans, the NF-F12 features an MTBF rating of more than 150.000 hours and comes with a full 6 years manufacturer’s warranty.






Temperature Tests:

In this test we will be comparing the Noctua NF-F12 fan with the COOLER MASTER A12025, and the  Rosewill RFA-120 when used with Cooler Maters Hyper 212 Evo CPU Heatsink. All fans in this test were ran at 100% speed to maintain correct readings. Load temperatures were tested using Prime95, we understand prime95, and ambient temperatures were 23°C.

Test Platform:

Motherboard: MSI 870A-G54 (FX)
Power Supply: OCZ ModXstream-Pro 600w







When comparing the temperatures across the board, it’s obvious to tell that the Noctua NF-F12  PWM performs extremely well. Even though the Reeven ColdWing12 has better idle temperatures in both stock and overclocked frequencies, it’s load temps that count the most, considering the fact that computers mostly spend their time in some sort of load, gaming, applications, etc. There is no doubt that the Noctua NF-F12 is in a class of its own, it provides the maximum amount of airflow with all of its latest technologies and as an added bonus, while maintaining a very low noise level, even when under full load (100% RPM).



Conclusion:

With all of the research involved with the development of the Noctua NF-F12 PWM fan, it’s clear to see why this fan dominates them all. From the stepped inlet design to its second generation SS02 bearing, all the technologies that are involved in making this PWM case fan what it is today really makes the consumer (myself) very proud. Noctua has done a superb job creating a real work of laborious art. Even though the NF-F12 PWM is a little on the pricey side, we believe its a real bang for your buck, considering all the extra features that are packed into it. So in the end If you're looking for a great PWM fan for your CPU Heatsink, radiators, or just your computer case, the Noctua NF-F12 PWM will not disappoint, especially with the added 6 year warranty, that is if you can fork over enough dough for the $23 price tag. I would like to thank Noctua for supplying us this excellent fan.

Pros

Quiet
Airflow
State-of-art design
PWM control
Accessories
Warranty


Cons

Price





Verdict

Performance
10
Value
9.5
Quality
10
Features
10
Installation
10
Final Score
9.75










More information on the Noctua website: http://noctua.at/main.php?show=productview&products_id=42&lng=en