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SilenX: the data and findings thread - Page 16

post #151 of 190
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Quote:
Originally Posted by stargate125645 View Post
You have never had tolerance for people disagreeing with you or pointing out something you didn't like...

http://www.overclock.net/2162528-post94.html
Taken straight from the horse's mouth.

Not a big deal bud, just something I thought was ironic.
Quote:
I will let you know when they arrive.

Regarding the noise levels of these fans--if you mount them using the metal screws provided they are considerably louder than if you mount them using the silicon grommets provided.

Any obstructions (vents/mesh/grill) in the case where they are mounted will make noise too.

And undersize holes in the case for the fans will make noise.

I have an Aerocool streamliner and I found it's airflow to be anemic--there are NO Aerocool streamliners pushing 72 cfm so I don't see the point of the comparison???

Ditto the TT icage fan--which is an interesting fan (like the 140mm streamliner)--but not a high cfm fan by any stretch.

Any fan in the 70 cfm range is fair game though--and I invite comparisons of the SilenX with comparable cfm fans.

Subjective dba readings are...well....subjective.

Even dba readings using equipment and controlled settings are still all over the place--hence the wildly different ratings you see for fans posted by vendors.

And the RPM at which the test fans rotate determines the "pitch" of the noise--and depending on the individual's hearing different pitches may seem louder or more annoying.

For instance I find the TT Thunderblades to by very "Whiney" and annoying at full tilt--they produce the same cfm as the SilenX--which is easy enough to test with strips of Toilet paper held at specific distances and I have done that...

While I find the 200mm or 250mm fans I have to be very pleasant due to their lower pitch--despite being "louder" than the SilenX at the same aprox. cfm--they have more of a "rumble" than a whine--which seems less loud to me.

So it's in the ear of the beholder

That said I still think these fans are rated correctly RE dba and cfm despite claims by others to the contrary.

Thanks!
And there it is. And that is what I thought at that point. I then went to XS and talked with Vapor and he PMed me the findings which he has yet to publish and saw that I thought wrong.

I then read Vapor's thread again and again to try and see if any fans at all match their MFR stated spec...nope. Except maybe the San Ace--so I bought it.

And your point is? that is ironic that I still like the SilenX fans? That I am testing them to show that there is no difference between them and 110 and 103 mfr rated cfm fans? What's the irony?

As far as tolerant of people disagreeing with me--I don't give a flying #$% at a rolling donut what people think of me or whether they disagree or not.

I have a life and I have an art and I have a business and those things are important to me--not someone's opinion.

I have to live with myself and I find it easiest to do when I have no ulterior motive, no plots, no manipulative scheme. I bought the fans and sold them because I am passing along a great deal to my fellow members. I made a dollar a sale..not hardly worth the aggravation TBH...although I met a lot of neat people doing it.


I have been the same CyberDruid since day one...nothing new here. When Pook started his rant againt them without even PMing me I just lost interest in being a merchant here of SilenX fans. He had effectively used his wpersonality and opinion to poison the well against perfectly good fans.

No one to this day has shown me another fan that is just as good and quiet. Where is the fan? I am testing the fans I could easily purchase and even some that I had to hunt down. I am still looking for the perfect fan. Until that day I have my stash of SilenX to use...

What get's me peeved is here I am spending time and money to do something anyone could do--but are too stingy or lazy to do and I wonderwhy nother...no matter what I find someone who already knows it all will just twist whatever I post here to their own POV anyway.

We have no disagreement about fan app be critical.

Until I saw independent tests I was under the impression and thought that the SilenX fans were rated correcttly.

I did not spread mis-information--I did not "get over" on someone to make a dollar (literally).

I still think the SilenX are great fans. If I had to schoose any of these fans for my next build it would be SIlenX--although I have to say the Hiper I am testing right now is very nice indeed.

48C at load and as quiet as any fan I have heard.

Hiper HiperFlow seems to be one of thebest fans so far RE noise/performance. on THIS test bed. Whether it would work for someone els I cannot say.
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post #152 of 190
Quote:
Originally Posted by CyberDruid View Post
ANd you point is?
My point is that your opinion changed, which is precisely what I said, and what I just proved. You need to relax.
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post #153 of 190
Thread Starter 
My opinion is these are still the best fans for looks/performance/noise for my apps.

It is unchanged.

The fact that ALL fans are misrated is not really a big surprise. The fact that I am willing to accept and digest data is no biggy either.

My opinion is that fans are a personal taste like a hat or pair of shoes, Someone wants Blue LEDs, someone wants bragging rights of 110 cfm, someone wants dead silence...it's all out there--just gotta find what you like. I like SilenX. And HiperFlow

Never saw the Hiper Flow before. It's pretty, it's quiet, it keps the rig at below 50C...win win win.


Time for another fan, I will use the Rosewill NewEgg had in stock. The one Pook loves is out of stock.
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post #154 of 190
Thread Starter 
I ran the system down really to ambient as I went out for a bit and when I fired it up into desktop it was in the 30s. But it did not take long for the temps to jump to 49-50C. The fluctuate between 48-49C with an occasional drop to 47C. I would rank this fan above the Silverstone FN121 in cooling but below the HiperFlow and SilenX "90" cfm. The FN122 got up to 52C at times and hung around 50-51, the RoseWill hangs around 49-50C and the others all hovered around 47-48...not that big of a difference.

The fan is not loud by any means...it is louder thean the PSU next toit..which the the FN122 was not.
Nor was the HiperFlow nearly as loud as the Rosewill, yet it cools better.

The Claimed spec for the RoseWill: 77.26cfm 2000RPM 35.48 dba

The Claimed Spec for the HiperFlow: 49.7 cfm 1500 RPM 19 dba

The Rosewill is a plain black fan...but I believe this is the same fan that Rosewill markets as a clear bodied LED fan. This HiperFlow is chromed and has 4 blue LEDs.

I could not hear the HiperFlow unless I litened to it a few inches away. The Rosewill I can distinctly hear from where I am sitting.

I was bringing this up becasue I find it really odd that a lower cfm rated fan that is obviously slower and quieter could cool better than a high cfm fan?

That is why trying to judge a fan is not just CFM--or how you "think" it is going to perform.

I made the mistake early ono of doling out advice about things that worked for me in my apps...without a HUGE duisclaimer: may not apply to your app. It's really a leraning experience...I have about another half dozen to test, so I do hope that there are a few other gems in there like the HiperFlow...

Final thought on Rosewill: a good fan for $5 but not as effective as the other fans tested so far with about 1C better than the next down on the list the FN122.


Now to test a SilenX non LED Fan with the same rating as the RoseWill. I will be back in about 15 minutes with the start up and other temps as I am curious to se if this fan is about the same as the ROsewill in terms of noise/performnace. At 4 times the price it should be...let's find out.
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post #155 of 190
Thread Starter 
While I let the sys cool down I screwed around with a SilenX and RoseWill that have close to same cfm spec. But the Rosewill dba is specd a lot higher...but I found they are very close to the same sound level--they have different sounds--but almost at the same level to my ear. The divider would be which one is louder than the PSU...

I went over and plugged in the Rosewill again and a spare SilenX--which is a diferent sound than when they are on the shroud...but still I was wanting to hear them again side by side. The difference is mainly to my ear in pitch with the Rosewill being only slightly louder than the PSU and the SilenX about the same or depending on how it was placed, slightly quieter than the PSU...

Again they both had totally different sounds on the shroud than on edge on the wood table or held in my hand--3 completely different sounds.

So that is an eye opener...the SilenX is not Loud but I can definitely hear it over the other stuff in the room if I am directly in front of it.. The Rosewill was about the same TBH, and it was just a bit harsher--with a higher pitch--and I could clearly hear that over everything else....

Temps are pretty steady at 49C with an occasional fluctuation to 50C.

Overall about exactly the same as the Rosewill..and not nearly as good as the HiperFlow. I think the HiperFlow is quieter than the Rosewill by far and when I shut off the rig before the next test I will listen to the Rosewill the Silenx and the HiperFlow again and try to describe what I am hearing.

At this point I would have to go with HiperFlow for the best performance to sound ratio so far. The "72" cfm SilenX just is not putting out and the temps show it. The HiperFlow was able to maintain 1 C lower on this setup despite a lower CFM rating.

GO figger...

Next up Cooler Master Silent Fan 44.03 CFM 1200 RPM 19.8 dba
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post #156 of 190
Excellent work, seems you've gotten a ton done while I was at a Red Sox game
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post #157 of 190
Thread Starter 
I need to step outside and look at the full moon for a while. I have been inside alll week it feels like...
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post #158 of 190
Quote:
Originally Posted by Burn View Post
That sounds great- I wish I had a dB meter and Anemometer to do testing with, fans are quite possibly the #1 debated topic..Why? Because no matter what flavor of cooling you choose, you always use fans, regardless of what you are cooling.
so those are the only two things you need? My dad has tons in his Physics labs at university. I could borrow them easily. I was under the impression there was more testing than just that; i could test my fans although they are generic and post results if anyones interested. got nidec beta v's and a system papst and a thunderblade.
    
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post #159 of 190
Guys, please put down your weapons and just let CD do his work. We're not asking him to rescind any of his past beliefs, as we all well know, even the best of us make mistakes sometimes. Just let the guy do his work and we can get some hard evidence as to what fans he recommends for use with cases and what he recommends with radiators. I think if we all can do that, it would make this a much more pleasant thread to contribute to and we can get a lot more useful information, rather than bickering back and forth about past opinions :\\

@ Sreenath- Talk to CD, he's the guy with all the fans at this point. I would have done it in the first place, but the tools would be used much better by CD because he's the man with the fan...s...
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post #160 of 190
Quote:
Originally Posted by txtmstrjoe View Post
Not quite true.

By changing the fans and keeping all other variables and conditions static, you're seeing the effects of the changes to just one variable, i.e., the fans.

It's true that the fans being used are but one part of the cooling system. But if you change nothing else except for the fans, then the data collected from changes to the fans is a direct consequence of the changing variable. Change the fans, you have a change in observed temperatures. It's a simple, direct correlation.
Right, according to that if you were at ambient temps with Silenx fans, then you "tested" 30million CFM fans on the same loop and were at ambient also, then you would have to say they perform the same which is just ridiculous since they potentially dissipate much more heat.

A valuable test doesn't just keep variables the same, it also controls those variables in terms of the effects they have on the criteria of judgment.

I'm all for shutting up now and letting the man do his work, as like any benchmark here it's still interesting to me.
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