Noiseblocker BlackSilent Fan XS1-50mm

Product Information

The fans will be introduced, first, individually with descriptions and pictures. Next we see their specifications as a group. Then we shall look at their actual performance by comparing them with each other. So let’s get started. PWM Fans Arctic Cooling Case fans generally come in two core sizes including 120mm and 140mm versions. Apart from the fan diameter and location of the holes to attach to the chassis both are pretty much the same. Occasionally cases have a front or top 200mm - 230mm fan but with manufacturers producing more slim and sleek case designs, the larger fans are getting integratedless. Water Cooling Radiator Fans These fans come under their IT series of fans which are marketed for the PC users and the enthusiasts. We are reviewing the B12-PS and B12-P versions of the eLoop in 120mm category. The B12-PS fans are rated at 12V DC with an input power of 0.95W using the 0.082Amperes. The starting voltage for these fans is 6.2V. The fans are rated at 400 to 1500 RPM at 12V. The NB-eLoop fans mostly need 70-90% of a number of revolutions compared to the available low noise axial fans to produce a comparable cooling capacity and volume thanks to its aerodynamically optimized loop rotor.

Conceived for industrial heavy duty applications that require enhanced cooling performance and advanced ingress protection, Noctua’s industrialPPC (Protected Performance Cooling) line comprises ruggedized high-speed versions of the company’s award-winning retail models.

Testing was performed on the Microsoft Windows 10 x64 Professional edition build version 1709. Noctua NT-H1 thermal paste was used. The fans were put on 50% and 100% of their speed. The pump of the CLC was put on 100% of the speed. Asus RealBench v1.44 was used to stress test the CPU. RealTemp was used to monitor the temperatures. Fans come in a range of different sizes from 40mm all the way up to 220mm with the average PC chassis fan coming in two sizes including the 120mm and 140mm variant. Chassis Fans The NB-eLoop X B14-P ARGB works in a range between 0 and 1500 RPM, thanks to PWM technology, generating a considerable static pressure of up to 2.310 mm H2O. However, it becomes absolutely impressive when looking at the airflow, i.e. the air flow rate. A remarkable 186 m³/h (109.47 cfm) at maximum are generated here despite the low speed range. At 12 Volt voltage and full speed the fan is still not louder than a maximum of 29.6 dB(A) - this is a remarkable achievement in the world of air cooling. Cable management, Decoupling and LightingFurthermore, the NB-eLoop has cable management: Only a very short 4-pin cable is attached to the fan itself, the length of which can be varied using two supplied adapter cables. Thanks to the choice of a polycarbonate material, in particular Makrolon, the chassis is also vibration dampened and additional dampeners are still included as standard. Below you can find the best 40mm fans for computer cooling and for cooling other devices. These 40mm fans can also be used as replacement fans for various devices and components including Flex ATX PSU. 40mm Fans 12V Noctua NF-A4x10 FLX Fan The bionic loop fan is the world’s first such design to feature a bionic frame and bionic rotors. Combination of these two with the SLI2 and position invariant magnetic bearings have enabled the NB to deliver a product which delivers the same or better performance level as can be had from the axial fans but at much less noise level. The fans are modular as well. Unlike standard axial fans with fixed power connector, these fans don’t have fixed connectors.

SPL testing on a rad might be misleading because fans -- even when mounted on a rad -- can use the CFM box as a sounding board. I have thought about building a testing chamber out of something large and stiff, but I would have no place to put it . . . and there would still be no assurance that fans did not use it to make a sounding board. Think guitar or violin to get a notion. The NF-F12’s, the NF-F12 industrialPPC’s, and the NF-P12 were provided by Noctua. Noctua NF-P12 Rosewill PWM fans can be used with PWM splitters, where they all get their power directly from the PSU while tghey get speed control from the motherboard. There were two clear winners here, the Nidec Gentle Typhoon PWM and the Medium speed San Ace “Silent” PWM fans. It is too bad that these fans are among the hardest to get.

Quiet, reliable and affordable.

The next column shows the nominal fan speed in RPM. The next to the last column tells you how much noise the fan makes, the Sound Pressure Level at 1 meter, stated in decibels with an A weighting (dBA) which is reasonably close to what you might hear. And finally, the last column shows the airflow the fan produces, stated in cubic feet per minute, or CFM. In our first testing we, try to validate the stated/rated airflow value by the manufacturer. The rated airflow value of B12-PS is 58.1 CFM at full speed. In my testing, the airflow value comes to the 64.25 CFM validating the rated airflow value. The rated airflow value for B12-P is 77.9 CFM. The tested value is 89.90 CFM. The static pressure is rated at 1.475 mmH₂O at 12V. The air flow is rated at less than 58.1 CFM equivalent to 98.7 m³/h. The sound pressure is rated at less than 21.2 dB(A) at 100CM. The loudness level is 0.440 Sone (N) at 100CM. The MTBF is 140000 Std./hours. Operating temperature for the fans is -10°C to +60°C. The Deepcool UF120 has been around since 2009. It is still for sale. This fan’s claim to fame is its rubber coating which attenuates vibrations. Further, it comes with four silicon vibration isolators. I have used most vibration isolators, and these are the best kind. Other accessories include a PWM-style 12-volt power tap (a so-called Molex adapter) and wires that shunt 12 volts and 5 volts together to get you a 7 volt Molex adapter. Both the GF120 and the UF120 were supplied by Deepcool.

All the outputs all turned out to be underestimates, to one degree or another. The SPL varied. In some instances the fan made fewer dBA than specified.The ambient noise for the current testing was 30 dBA. To measure noise levels that were softer than that, the sound pressure level was measured 10 cm from each fan. The sound pressure level was adjusted to 1 meter by subtracting 20 dB. The sound pressure meter was a Tenma 72-942. This fan tester has a microphone that is not accurate under 30 dBA. That means an adjusted measurement of 10 – 15 dBA is not accurate; the fan could easily be quieter than that. But this is the limit of all but the most expensive SPL meters. Test Stand Noctua’s industrialPPC line also uses a 3-phase motor. Most motors you see have four poles inside. These have six. You may wish to compare the specifications to the results, so I placed the table near the chart. The first column identifies the fan. The second says what kind of bearing it has. The third column tells the current draw in amps. SP means Static Pressure, which is stated in mm H2O. As said before, the blades are a translucent blue and have a slightly bumpy texture to them. This seems odd for a fan as it will increase air turbulence and therefore noise. It could also prove fatal with trapping dust over long periods of operating; our testing will let us know. Remembering all of these caveats you should be able to make an intelligent decision on which PWM fans to get. Thanks for reading our case fan roundup. Let us know your favorite PWM fans in the comments below.