Magnetic fans?
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Magnetic fans?
I just recently heard about these, are they any good?
http://www.enermaxusa.com/catalog/produ ... cts_id=101
From the specs it shows 17dba @ 1000rpm I assume? Isn't this pretty loud for something claiming to be noiseless compared to the other fans enermax offers which push more air and run with only 8-14dba?
http://www.enermaxusa.com/catalog/produ ... cts_id=101
From the specs it shows 17dba @ 1000rpm I assume? Isn't this pretty loud for something claiming to be noiseless compared to the other fans enermax offers which push more air and run with only 8-14dba?
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Re: Magnetic fans?
Be advised that the promoted "noise levels" in the US of A are total fantasy. In Italy, Enermax puts some actual measured (at 100% RPM) noise levels on them... which are vastly higher.Hello- wrote:I just recently heard about these, are they any good?
I reviewed the Cluster (PWM) and Magma recently in the User Reviews forum. I'd like to see some measured performance data on the new fans under controlled air-impedance values... but there are no such measurements available anywhere (sigh).
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I own two of these, had them in a Lian Li A05b. Used them for a positive pressure airflow scheme. They were incredibly quiet. Couldn't hear them over the idle/seeks of a Raptor drive. Their specifications say they're rated for 1000rpm, but all the monitoring software, and the BIOS for my motherboard say the fans spin at a max of ~950rpm with 12v. At that speed I really can't hear from ~2 feet away.
You'll always have the noise of the air being moved, and with quality fans, this is all you hear now.
The benefit with this technology would be that your fans wont "wear out" over time, since theirs no actual physical contact whatsoever between the motor and fan.
The Technology is still new, and will likely be improved upon before its perfected, but its a good step in the right direction.
The benefit with this technology would be that your fans wont "wear out" over time, since theirs no actual physical contact whatsoever between the motor and fan.
The Technology is still new, and will likely be improved upon before its perfected, but its a good step in the right direction.
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Even a high quality fan will show some bearing noise at higher speeds. These magnetic fans have the benefit of zero bearing noise at all speeds. The one issue I have with them is their power draw, it's a bit high, probably why they don't spin exactly at 1000rpm.Aris wrote:You'll always have the noise of the air being moved, and with quality fans, this is all you hear now.
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Re: Magnetic fans?
I misspoke. Since you just recently heard about an enermax fan, I (incorrectly) assumed you were writing about the new Twister line.Hello- wrote:I just recently heard about these, are they any good?
http://www.enermaxusa.com/catalog/produ ... cts_id=101
From the specs it shows 17dba @ 1000rpm I assume? Isn't this pretty loud for something claiming to be noiseless compared to the other fans enermax offers which push more air and run with only 8-14dba?
The Marathon has been around for over a year. In my equal-airflow tests, it's the quietest 7-blade fan, and second only to the new 9-blade Slipstream for noise at equal airflow. Warning: there apparently is some sample variance, because SPCR's tests on the same fan showed a single-tone noise that my samples (3ea) don't have.