![]() Two recordings of each noise level were made, oneįrom a distance of one meter, and another from one They represent a quick snapshot of what we heardĭuring the review. Hard to ensure there is no audible degradation from the original WAVįiles to these MP3s. Then converted to LAME 128kbps encoded MP3s. ![]() Made with a high resolution, studio quality, digital recording system, This is where to look if you just want to cut to the chase The green box below describes how we make our recordings and what you’re supposed to do with them.Īt the end of the roundup is a conclusion that summarizes the best and the Five seconds of ambient noise, followed by the fan running in the constantĪirflow test, recorded at a distance of one meter.Īirflow test, recorded at a distance of one foot (30 cm).Īs always, we recommend that you listen and compare the recordings in a specific way.Recorded at a distance of one foot (30 cm). Alternating ambient noise and the fan running at 5V, 7V, 9V, and 12V,.These recordings can be used to make A/B comparisons betweenįans to help illustrate the differences between them. In addition, every fan was recorded four times, according Use these to find specific information about the fan The rest of you: Sit back and enjoy! We hope you find our workĪ large pile of 120mm fans, not all of which made it into this test.Įach fan in this roundup has its own data table and write-up that summarizes Users who want to know exactly how the fans were testedĪrticle. Of fan technologies can be found in our recent article, Anatomy For users who are interested, a more technical discussion Fans produce noise - the faster the fan, the more noise it producesįor our purposes, the best fan is the one that pushes the most air for the.Fans are designed to push air - the faster the fan, the more air it.Not need to know how a fan works to get the most out of this article. We have kept theory to a minimum, so you do This roundup is primarily a summary of our test results with a few interesting Noctua, a highly reputed Papst, and a couple dark horses from ARX. We also looked at an Antec Tri-Cool (whichĬomes stock in many Antec cases), some much hyped fans from Scythe and Now, we’veĮxamined another half dozen (or a dozen, depending on how you count) fans,Ī surprising number of which are suitable for a quiet system.Īs with the last roundup, we started with the Nexus that has been our fan Was published about two weeks ago, but that only looked at 80mm fans. We usually recommend using a 120mm fan if possible - but which one to Same cooling at a lower speed, and thus a lower noise level. Or, from a silencing perspective, a larger fan can provide the ![]() Means that hot components can be kept cooler, allowing greater headroom for ![]() The advantage of the larger size shouldĬome as no surprise to most: A larger fan produces more airflow. Were standard and a case that accepted larger fans was worthy There will be a new methodology article coming soon.Īlthough 120mm fans are now commonplace, it wasn’t long ago that 80mm fans We’ve updated airflow dataįor some but not all fans only fans that fared well acoustically were retested Revision to improve accuracy and repeatability. Our fan airflow measurement system has recently undergone a major Competition was tough, and it wasn’t easy to decide which fans we liked most. This time, we look at 120mm fans from Nexus, Noctua, Scythe, EBM/Papst, Antec and ARX. We can think of the differing pressures as positive (absolute pressure of the fan) and negative pressure (pressure drop experienced after heat sink/exchanger).Our second fan round-up is here. Because we are looking at utilising higher static pressure fans for possible heat sink or radiator cooling work, the static pressure differential then becomes the difference in air pressure on the inlet and exhaust of the chosen application. Ok so that makes sense so far doesn't it? Essentially static pressure, or more accurately the measure of it, is the difference in pressure. As the pressure differential rises, airflow drops. There is an inverse relationship between airflow and static pressure. It is essentially a measure of the differential air pressure between the air pressures inside an application vs ambient air pressure outside of an application, which for airflow calculation purposes is usually 0 (zero). So what is Static Pressure? Static Pressure is usually stated either in inches of water (inH2O) or in millimeters of water (mmH2O). Furthermore I hope that by covering the basics it will help the newer members grasp what we are trying to achieve a little easier. I thought it would be pertinent to run over some basic theory in relation to static pressure and its benefits, as all fans are not created equal.
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