Fan PQ curve testing

Quote:

Originally Posted by Martinm210

Yeah, I would suggest Part 2 also, or Vapors testing. This first round one was my first attempt and it was only an attempt at measuring the PQ power curve. It was not an attempt at all to measure noise either.

Anyone want a box of fans?

I need to get rid of them...

I'd happily get the box if you wanna send it to Greece :D

BTW I read part2, and also I received my sunbeam rheobus and tested a couple of fans I had around and that were in your test. These were the Zalman ZM-F3 and the Nanoxia FX12-2000.
My ear testing showed me that the Zalman was comfortable listening up to about 7-8V while the Nanoxia started being noticable at about 5V. Checking your graphs it seems that 60db is the point where I start to get annoyed...

By the way, the Scythe Slipstream super high and the Yate loon RPMs on your test seem a bit too high. The scythe is rated for 1900rpm and your testing shgows it reaches 2150. That's not very much off considering manufacturers declare a 10 difference. But the Yate loon is rated for 2200rpm and in practice it shows as reaching 2600rpm on 12V , that's a 18% difference, is that true?

The gentle typhoons sure look like excellent fans, but they just cost too much. I can't get them locally, and buying from the US they will cost me about 180$ for 8 pieces that I need....that's just too much...
The Zalmans I got locally for just 3 euros per piece, dirt cheap and they are kinda nice, but they are out of stock so I can't get 6 more, and they are sleeve bearing :(
Is there any suggestion on a cheap ball bearing fan that can reach about 2000rpm?

Lastly, is there any info on Sharkoon power fans? In this list :
http://www.sharkoon.com/html/produkt.../index_en.html

I can get the 120mm power fan (2400rpm) kinda cheap (4.5 euros), and they also got a cheap 140mm with 1500rpm which I can get for 8 euros (in contrast, the more powerfull Koolance 140mm 1700rpm is 15 euros...).
But I can't find any sharkoon tests online for either the 120mm or the 140mm part....any info on them?

Fan PQ curve testing - Part 1