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So the 1000 RPM slow speed version is not a radiator fan. For that one should try the highspeed version that nominally runs at 1650 RPM. But let us now look at the PWM control: be quiet! SilentWings fans stand for state-of-the-art technology, virtually inaudible operation and superior cooling. The third generation of this award-winning fan series offers unrivalled and uncompromising performance with a broad range of meticulous optimisations. They feature a smooth-running 6-pole motor, an advanced fluid-dynamic bearing, a unique airflow-optimised fan blade design and a fan frame with funnel-shaped air inlets. The six poles of the motor produce a smoother transition between the magnetic poles. This results in very low vibration and silent operation with less energy consumption. And all the fans are built with PBT, the same plastic that's best for gaming keyboard keycaps. Be Quiet says in their testing these fans worked just fine for really long periods, and say that even for four of more years of maximum RPM, there shouldn't be any sign of impeller creep. That's basically when the constant spinning and centrifugal forces on the blades causes them to stretch out, which, you might have guessed, isn't ideal.
The headquarters are located in Glinde near Hamburg. Since 2002, here is where all products have been conceived and designed, and quality inspections and controls have been carried out. This is how be quiet! ensures that all products meet the high standards. Regular awards in categories such as "Best Fan", "Best Power Supply", "Best Cooler" and "Best PC Case" from specialized media as well as a high level of customer satisfaction ensure healthy and steady growth. With such a variety of PC fans on the market these days a manufacturer really needs something that makes their product stand out. Basic considerations when choosing a case fan are appearance, cost, noise level and performance which depending on your needs will carry different weights in your decision. With that in mind let’s see how the Silent 3 case fans measure up and if they might be a product you would consider. Introduction The only other problem to consider is that occasionally, components immediately adjacent to the motherboard fan header can get in the way of the larger 4-pin fan connector, physically preventing connection. This problem also occurs if you try to use an in-line fan speed controller such as the one made by Gelid. Now for PWM. You wouldn’t normally use a 1000-RPM fan on a rad, but this fan is PWM-controlled. So to compare it with other PWM fans: The Silent Wings 3 are quiet fans. Their airflow is about mid-range but they are among the quieter case fans. Arguably with the other corner mounts, it would be quieter still.To make the SilentWings 3 into an absolute high-end product, be quiet! utilizes an advanced fluid-dynamic bearing with a brass core. The combined technology in this fan allows a lifespan of 300,000 hours. This applies to all four variants of the two available sizes (120 and 140 millimeters): be quiet! offers the SilentWings 3 in a 3-pin and PWM variant, and these are both also available as High-Speed editions. be quiet! lives up to its name: 20years experience in the field of noise reduction and silence make be quiet! products probably the most silent on the market. The Silent Wings 3 fan is a premium product. When you buy the fan retail it comes with two different fittings for the corners. However, we are reviewing the fans that came with the Pro 900 case, so our review will focus on the 140 mm 1000 RPM PWM fans that were included. The image above shows the fan with what be quiet! calls “hard plastic fittings.” These may be hard on the outside but on the inside, there is rubber for reducing noise when a screw holds it tight. On the intake side the air tube flares at the corners to make the “funnel-shaped air inlets” previously noted. This corner shaping is in aid of static pressure. On the exhaust side, the air path is a straight tube. Intake and Exhaust Views
Today we’re having a look at the be quiet! Silent Wings 3 case fans that came with the recently reviewed Dark Base Pro 900. These fans are available in 120/140mm sizes at two different speeds of 1000 RPM and 1650 RPM as PWM or DC and are available at many retail outlets. Anyway, AquaComputer eventually added similar circuitry to the SPLITTY9 Active and QUADRO products, which helped mitigate the problem down the road.that's interesting... exactly what i use Will for sure investigate a bit further... Thank you very much for that information, had no clue about that! But all in all there's definitely something to like here for PC gamers. Fans are an often overlooked piece of any PC build, but they really make a difference to your PC gaming experience, both in terms of cooling performance and noise. It's good to see some firm competition (namely from Noctua) keeping manufacturers striving for more. Undoubtedly the fans are an integral factor in minimizing the noise levels of the products in the be quiet! portfolio.Specially developed Silent Wings and other be quiet! fans are used throughout all product ranges. They are equipped with a variety of noise-reducing features, such as special bearings, smooth motors, optimized airflow and vibration decoupling. Thanks to these fans be quiet! products attain a perfect balance of ideal cooling performance and virtually inaudible operation. The fans were installed with what be quiet! calls “hard plastic fittings” on the corners. Belying their name they have rubber cores designed to attenuate vibrations. To finish the job they fasten these fans with rubber washers. Installed fans close up A Closer Look
Fluid dynamic bearings are an expensive option. FDB adds to the cost of a fan. Frame-shaping we have seen before. SpecificationsSome comments on their features: Most fans have four poles. In their PDF about these fans, be quiet! says that six poles contribute to a smoother transition between magnetic poles, less vibration, reduced power consumption and low start-up voltage. On the other hand, this usually is found only in more expensive fans.
The airflow was assessed using a standard measure, cubic feet per minute, or CFM. The air entered a sealed 8″x8″x8″ box (200+ mm on a side) where it was allowed to mix. The air left the box through an exhaust port, where it was measured with the vane head of an Extech AN100 anemometer, averaging 10 readings per fan setting. The fans were tested in an unobstructed state, with a metal mesh dust filter and on a 30 FPI rad. Test Results Despite its high performance, the SilentWings 3 from be quiet! is almost inaudibly quiet: the 120-millimeter variant produces a sound level of 16.4 decibels, while the 140 mm model produces only 15.5 decibels. The highly efficient, three-phase 6-pole fan motor and the rubberized frame contribute positively to this: both parts reduce vibrations to a possible minimum. In addition, the advanced, high-quality IC motor control effectively prevents electrical interference. As you can see on both intake and exhaust, these fans offer “optimized airflow” by providing their blades with a wavy shape. The furrows follow the air across the blades to smooth the airflow. It seems to work: these are quiet fans.
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The people at be quiet! sell you the retail fans with what they call “anti-vibration fittings” as well. They say, “Removable anti-vibration mountings on all four edges of the fan reduce vibrations transmitted to the PC case to an absolute minimum.” The corner fittings look nice, but because I never had them in hand I can only say the the pictures from be quiet have the fittings looking nice. Could be BeQuiet phased out the SW3s because there was a problem with using the pwm versions with AquaComputer Aquaeros. An image from be quiet! showing an anti-vibration fitting on the corner. BTW, be quiet! has a PDF manual that shows you how to take these corners off. The manual has a diagram that helps us see just how vibrations are not transmitted with this corner fitting. Anti-Vibration Fitting Test Setup
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