140mm fans for radiator, need advice

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boxleitnerb
Posts: 39
Joined: Sat Jan 27, 2007 7:11 am

140mm fans for radiator, need advice

Post by boxleitnerb » Tue Feb 15, 2011 11:34 pm

Hi!

I got a reasonably good deal for 9 noiseblocker black silent pro pk2. Mostly, I am content with them, but rather out of curiosity I would like to know if there is an even better choice.

What bugs me a little are 2 things:
One or two fans start at 4,5-5V. 9 start at 5,5-6,5V where I can begin to hear them. Voltage loss at the adapter cable? My fan controller has a turning knob. Just before they begin to spin as I crank up the voltage (from 0V upwards) they...screetch. My old Yate Loon D12SL-12 were completely silent, they just started when the voltage was high enough, but without a sound.

Second thing: There is a grinding/rattling sidetone (not the air movement itself). It is barely noticable at a distance of about 70cm, but one or two of the nine stand out a little.

Is there a 140mm fan out there that has a perfect bearing that makes no noise whatsoever?

JamieG
Posts: 822
Joined: Fri Dec 26, 2008 10:31 pm
Location: Melbourne, Australia

Re: 140mm fans for radiator, need advice

Post by JamieG » Wed Feb 16, 2011 2:08 pm

Yate Loon make a 140mm fan as well - speed is 1,000rpm at 12V from memory.

I haven't used this fan so I can't comment on its noise characteristics.
My PCs:
Main PC (E5200, G31, Lian Li Q07) | Gaming PC (E6850, X38, 5870 Vapor-X, P182) | HTPC (4850e, 780G, 3450, NSK2480B)

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