120mm Fan Roundup

Control: management of fans, temp/rpm monitoring via soft/hardware

Moderators: NeilBlanchard, Ralf Hutter, sthayashi, Lawrence Lee

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Joined: Sat Mar 11, 2006 4:04 pm

120mm Fan Roundup

Post by green » Sat Oct 03, 2009 10:50 pm

Posts: 4
Joined: Tue Jun 30, 2009 10:20 pm
Location: Europe

Post by Floppy » Sun Oct 04, 2009 12:15 pm

IMO the airflow measuring procedure is incorrect. It also gives unrealistic results and unrealistic differences between fans as the testing procedure used by xbitlabs (tests in the bottle). And it only gives an idea about how different fans will operate in trash bags. :)
I've found nothing about the sound character of the fans (ticking, bearing noise, etc.). And why they've measured the SPL from 50cm distance? If the sound level meter is unable to measure the SPL from the standard 1 meter distance then it must be measured from 25cm (and after that 12 dba should be subtracted from the results to get the SPL equal to the measured from 1 meter), not any other distance. IMO not a very useful review.

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