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SilenX: the data and findings thread

post #1 of 190
Thread Starter 
http://www.xtremesystems.org/forums/...79#post2225979
Please take a look at the entire thread that is behind the single post I linked.

Vapor over at XS is doing a lot of fan testing. I have asked him to test the 72cfm SilenX and the 90cfm Silenx and want to see what the real numbers are and what the pressures are and how they perform on a rad. I believe he already has some SilenX fans but I have asked him if I could send him one of each that I have on hand to see if they vary from batch to batch. I am always one to put my money where my mouth is.

This thread is strictly for data and findings. There is another thread on the Forum in Off Topic for ranting and raving about them

I thought it would be good to know just want the Guru of all Fan Gurus finds and publish that here.

Too bad no one here has the technical expertise or test gear to perform these sorts of fascinating comparisons. Until that time we will look to XS for hard data and scientifically based testing.

Let's see what Vapor has to say about these fans.
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post #2 of 190
*waits patiently...but eagerly*
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post #3 of 190
Thread Starter 
LOL

to fill time I will be combing Vapor's threads to post some of his findingas on more popular fans.

I have a feeling it will be a real eye opener.

As far as I know there are no fans that have met their mfr spec in all regards. Which should help put some persepective on this matter. Plus having Vapor's wisdom here even if third hand is a blessing we all need.

He has some great quotes which I find very enlightening regarding fan truisms and the difficulty of testing highlyy subjective elements like perceived noise.

On persons music is another person's noise--just ask your parents

So I think it will be interesting to dig through Vapor's link some more and publish a collection of "Vapor Wit and Wisdom" re fans and fan tests.
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post #4 of 190
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.

I too am looking forward to some hard evidence, compared to other fans and to finally be done with SilenX's claims, whether they are true or not.
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post #5 of 190
Quote:
Originally Posted by CyberDruid View Post
As far as I know there are no fans that have met their mfr spec in all regards.
He seemed pretty happy with the Nexus fans. (I luv my nexuses)

Quote:
Originally Posted by CyberDruid View Post
Too bad no one here has the technical expertise or test gear to perform these sorts of fascinating comparisons.
Well, actually...
post #6 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.
You also need a sound chamber cause ambient noise will have an impact.

Also, the other major reason they are so debated.... they are probably the most up-marked component. Yate Loon Real Silent sell wholesale cost less than $2.00. Nexus fans (which are the same fans by design) cost around $11-18 retail. CoolJag fans are $7 retail and they seem as SilverStones which are $12-16
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post #7 of 190
No matter how much a fan is tested, the results should never be taken as gospel. As with everything else, the end user in no way has the ability to reproduce such testing environments and their home PC is in no way an ideal platform to perform these tests either. I find it when deciding between things like fans and heatsinks, to add/subtract 5 units of measure (dba, cfm, degrees, etc.), to find out what the actual results will be once I install said piece of hardware in my case. My PC case may not have the ideal pressure, air flow may be screwed up, or God forbid, it's installed the wrong way .
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post #8 of 190
Quote:
Originally Posted by DuckieHo View Post
You also need a sound chamber cause ambient noise will have an impact.

Also, the other major reason they are so debated.... they are probably the most up-marked component. Yate Loon Real Silent sell wholesale cost less than $2.00. Nexus fans (which are the same fans by design) cost around $11-18 retail. CoolJag fans are $7 retail and they seem as SilverStones which are $12-16
On a side note I just got my cooljag last night and it is pretty nifty. I also got two orange Yate loons to match my two orange Nexii.
post #9 of 190
Quote:
Originally Posted by Melcar View Post
No matter how much a fan is tested, the results should never be taken as gospel. As with everything else, the end user in no way has the ability to reproduce such testing environments and their home PC is in no way an ideal platform to perform these tests either. I find it when deciding between things like fans and heatsinks, to add/subtract 5 units of measure (dba, cfm, degrees, etc.), to find out what the actual results will be once I install said piece of hardware in my case. My PC case may not have the ideal pressure, air flow may be screwed up, or God forbid, it's installed the wrong way .
The values themselves should never be taken as gospel... especially when provided by manufactors with different testing conditions. However, a comparison of fans using the same testing procedure is valid. The numbers don't matter as much as how they compare relative to each other.

Quote:
Originally Posted by iandh View Post
On a side note I just got my cooljag last night and it is pretty nifty. I also got two orange Yate loons to match my two orange Nexii.
I responded to that in another thread today...
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post #10 of 190
Quote:
Originally Posted by Melcar View Post
No matter how much a fan is tested, the results should never be taken as gospel. As with everything else, the end user in no way has the ability to reproduce such testing environments and their home PC is in no way an ideal platform to perform these tests either. I find it when deciding between things like fans and heatsinks, to add/subtract 5 units of measure (dba, cfm, degrees, etc.), to find out what the actual results will be once I install said piece of hardware in my case. My PC case may not have the ideal pressure, air flow may be screwed up, or God forbid, it's installed the wrong way .
Actually, I think one's own rig is the best equipment on hand when testing any kind of component/component combination. Why? Because each system is unique, and the results you get are the results you get. You observe what you observe, you know? You do your own tests, and you get your own results. It does you no good to be dishonest with your own findings.

I think the best approach would be to take anybody else's findings with a grain of salt, a healthy kind of skepticism, if only because of the uniqueness of his own situation. Some users may find that their results will coincide with you own; others may be way off.

Computers are not homogeneous machines; this is especially true in the world of custom PCs. Even in a laboratory, where variables are controllable, any little change in conditions will result in a "skewed" report. Besides, even in the most ideal kind of situation, such results aren't exactly "real-world" either, because, by definition, they are idealized. The real-world is not a static environment like a laboratory is.

In conclusion, when it comes to all kinds of equipment, do your own tests. Get your own results. Your findings will not be the same as someone else's. Understanding this is the most important principle, I think, when it comes to any kind of real-world usage of any kind of machinery.
    
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