Published on 28th September 2009 by
Originally Posted by DiosjeninAny chance you could work an SFF21F and/or an SFF21E into a follow-up article?
Originally Posted by dragontailHighly recommend the Sharkoon Silent Eagles. Running 3 in my system; two case fans and one on a Scythe Ninja and they rock. Very quiet, but unlike a lot of the other quiet fans, it provides a decent amount of airflow.
Originally Posted by GotyI think the method for determining CFM is flawed in this article (if only for expressly determining only CFM).
As the garbage bag fills up with air, a pressure gradient forms from one side of the fan to the other, therefore bringing the static pressure of the fans into consideration. i.e. The airflow of each fan will fall off as the garbage bag gets inflated, with fans exhibiting higher static pressure performing better near the end of the test and therefore giving the impression of higher CFM.
I think a slightly better test setup would have been to create a shroud leading to an anemometer, which would remove the static pressure of each fan from consideration until the radiator test (which is where static pressure should actually come into play, anyhow).
Originally Posted by LizardWe tested both these fans quite a years back (CPC Issue 36), but the testing methodology is pretty much unchanged so the results are more or less comparable.
In short, the 1,200rpm SFF21E moved 61cfm at 25.5dBA, while the 1,600rpm SFF21F moved 76cfm at 33.7dBA. As such, I'd say the SFF21E is a good (albeit expensive) fan, while the SFF21F is too noisy for comfort.
Originally Posted by capmoqHave really been waiting for something like this. Really nice job.
Would have wanted to see such fans also:
1. Enermax Magma
2. Noiseblocker NB-Multiframe M12-P
3. Cooler Master 120mm Case Fan
Originally Posted by TSR2however I am slightly intrigued as to why you gave the TK-121 an 8 for value, when its main use appears to be shifting air through the radiator?
Originally Posted by StickehI'm so glad when i built my system i bought sharkoon!!
Originally Posted by talladegano yate loons. :(
Originally Posted by Otto69 build up a higher pressure to keep the bag inflated than it does merely to circulate air. What this test is doing is akin to trying to "inflate" a glass bottle by blowing in the mouth, then complaining when not enough air passes.
Originally Posted by RedStak I would like to see included Noiseblocker 120mm fans, I think they're among the best i've seen....
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