Anyone ever read this article? About true db of 80mm fans.

[Nemmeh]

I've just been reading up on how to quiet systems down lately, as well as postly some topics here for you guys help.

Well, I wrote down all the fan models and everything so I could look up the specs, as I was doing so I stumbled onto this article..

Is there any truth to this?

If infact, these tests are accurate.. then geez.. a Panaflo L1A puts out over 54db? Anyone care to comment?

Article just kinda caught me off guard.

http://www.directron.com/directron/noise.html

 

[WobbleWobble]

Good article, thanks for the link!

 

[RalfHutter]

It's a very flawed article. Read this for an explanation.

 

[Davegod]

they say themselves that their comparison is pointless in the real world - unless you sit with your head 1 inch away from your PC. Measuring at 1 meter makes more sense because this is a more realistic distance your head might be from it, and I beleive certain sound frequencies travel better than others. If there is two fans of equal dB, where one is designed so that little of it's sound is actually picked up by the user, and another is not, this article would rate them both the same - even though to the user the effect could well be markedly different. Further, by placing 1 inch away, any tiny variation of fan position etc is FAR more significant than it would be at 1 meter. I'd assume that at 1 inch even the tightness of the clamp would be significant.

clearly also totally goes against their own point - "(4) Most manufacturers list "absolute noise" level measured in a sound-prove lab. Such data are not realistic and difficult to use in real life".

"This study is however independent from any manufacturers"
- there is a directron product at #2, although I presume really this is just some OEM. Independent from any manufacturers maybe, but blatantly not from any retailers. Retailers have different markups on different products, they would definately have an interest in being biased (not to say there's any evidence that that actually are).

Interesting article, but I dont give it the slightest bit more usefulness or accuracy than many of the other articles out there. Considering noise is such a subjective topic anyway, its one thing I would place heavy value on the judgement of people on boards like this, and I'm pretty sure there's been a lot of opinions given that run contrary to the order of quietness given there.

 

[Nemmeh]

Yeh, I trust everyone's real life experiences and opinions on products than what a site reviewed it at... When you hear the good comments about certain fans from a ton of people vs 1 site.. I tend to believe the people.

 

[pspada]

That "review" blows and/or sucks, much like the fans they are talking about.

 

[Zebo]

Originally posted by: RalfHutter
It's a very flawed article. Read this for an explanation.

Owned.

There is no excuse for using fans that have thermal resistors against fans running at full bore.