Here are numbers from my prelim testing (usually very close to final results):
Sharkoon Silent Eagle 2000 @ 7V:
CFM/dBA: 48.7/27.3
Yate Loon SM @ 12V:
CFM/dBA: 58.5/32.9
Subjectively: the Sharkoon beats the pants off the Yate SM and SH. The SM and SH are not as impressive as the SL...
Does the noise 'quality' of the Sharkoon 2000 hold up well with undervolting? I ended up getting the 1000 due to availability, but I'm kinda wishing I'd been patient and waited on the 2000 now. The 1000 is great, but since I basically can't hear it at all @ 12v, it seems like there's some room to go faster.
Yeah, no extraneous noises undervolting.
Vapor, i would like to know the noise level and cfm of the D12SH-12s @ 12V. if the D12SM-12s are 32dB i'm now worried.
SH's @ 12V:
Petra: 76.7CFM, 37.2dBA
J-T: 70.1CFM, 36.6dBA
Thanks Vapor. That is not what I was expecting from the Yate Loon SM so it changes my thought processes. Last request... Could I get the numbers for the Sharkoon Silent Eagle 2000 @ 12V? Thank you for spending the time to research this topic in such an in-depth manner. It sheds a lot of light on which fans are truly the best and benefits a multitude of people.
Keep in mind that everyone (potentially) measures dBA differently, which is why (I assume) Vapor listed the 'adjusted DB' charts... he found a fan that was rated close to how he was measuring and adjusted all the others accordingly (again, I'm guessing on the process, so it may be more or less involved than that).Originally Posted by Ar3s
true spanki. so i have to ask what distance from the fan were the noise level taken at ?
This round I'm measuring at 10cm....last round was 12cm. I get very, very different numbers than what I'm showing.
What I show are 'adjusted dB'...essentially I take the numbers from a few fans I trust (Yate Loon SL, Deltas) and get a y = M*x + B equation to adjust them down to 1M numbers that we're all used to.
Last round, they were spot on. This round, I've only tweaked the equation slightly....it's SL-justified, but I'm thinking it's too tight (meaning lows are too high and highs get lowered). Haven't tested the Deltas yet....
Either way, since it's a simple Mx + B form, where M is less than 1 and B is negative, for adjusting....if one fan is respectively louder than another, it'll stay that way no matter what the adjustment is.
Honestly, I don't think the adjusted dB numbers I've been showing are final, but their source numbers will not be changing.
EDIT: okay, I think I just finalized my adjustment equation....not a big change really, but a better fit now at all data points.
Vapor , I am gonna use 6 fans for my case ( Cm stacker 830) , which shall i pick for silent but enough airflow for a clocked system , 6 x Sharkoon Golf or 6 x yates, eitherway 1) connect them by molex, 2 with a fancontroller?
If you get the Sharkoon's, you're going to want to get a fan controller. At around 7V, they're better performers than Yates at 12V, and they have the overhead to 12V if you ever need more cooling. Six of them at 12V would be too loud, IMO.
BUT, 6xSharkoon2000 + Fan controller costs a lot more than Yate Loon SLs....depends how much you have left in your build budget.
hehe yea they cost a fair bit more then the yates lets say 1.5x, but I think it might still fit my budget, if so which fancontroller shall I get for it, there arent much around here in the Netherlands, only brands like Zalman/Scyth/
f.e: Sunbeam Chromatic Windmill /ZM-MFC1(6 fans( which I already got for references, but if this 1 is good enough, will spare me some money/ ZM-MFC2(4 fans)/Scythe Kamameter( 4 fans)/Zalman ZM-MFC1 Plus ( 6 fans , but not really available yet).
See posts 279-289 of this thread, page 12.hehe yea they cost a fair bit more then the yates lets say 1.5x, but I think it might still fit my budget, if so which fancontroller shall I get for it, there arent much around here in the Netherlands, only brands like Zalman/Scyth/
f.e: Sunbeam Chromatic Windmill /ZM-MFC1(6 fans( which I already got for references, but if this 1 is good enough, will spare me some money
I have the same situation and have decided to go with the YL SL's for the price/performance. I just couldn't justify spending around $100/+ for case fans. For noise I'm putting them on a fan controller. I figure with 7+ 120mm fans running, things should stay nice and cool even at 7v or so. But hey, if your not on a budget go with the Sharkoon's.
Scythe kamameter is really good.
i'm getting 7 Scythe Minebea NMB High fans. i hope running them all at 12v won't make the noise unbearable.
Maybe I've just gotten really picky about noise...but...well....hope you have nice headphones :-/
Vapor
Whats your current opinion on the ebmpapst 4412fgml for quiet pc's as i've heard that the fans make alot of motor noise below 9v. ?
The 4412FGML undervolts well...or at least mine does. There's a tad more subtle motor noise than the Sharkoon under 7-8V, but it's still better than what low speed fans can pull off. Do note that it doesn't get to ambient noise levels at any voltage (IIRC....it may at minimum running voltage, I forget), so there is a slight motor noise present...but considering the airflow and the overall noise, it's not bad.
BUT, if others have had problems....then....well, maybe there is an issue overall.
Thanks
In your opinion is the noise a low hum or a high pitched noise where the looms are trying to volt up ?
oh crap.. i do but damnnnnn man that would suck.
Ah, sorry for the late reply....should stop relying on thread subscription to be 100%.
Anyway, the noise is kinda a low hum....it's a little higher than low, but definitely not high-pitched or obtrusive. In a (good) case, the noise is mostly killed, unlike a high pitch.
ALSO: Just got the FM123, Sharkoon 1000, and a Coolink SWiF-1202, but have only briefly tested the FM123....and I've got to say it is the most positional fan I've ever heard.....pointing down, it makes this HORRIBLE click (even just free-spinning it with your hand), pointing sideways, it's got a normal tone, and pointing up it makes a high-pitched noise. It also MUST be run on the included rheobus(the rheobus is GREATLY improved over the FM121/122's though....up to three heads can be put on one backplate and it's all black, and has an off position....and a better resistor).
That said, it's 97CFM* and 120x120x25....definitely a better option than the overspecced FM121. (*97CFM is prelim...the fan was exhibiting a form of break-in I've seen on Yates as well...so that will probably go up 102 if I had to guess).
Next week I'll also be getting an FN122....really excited for that one.
Thanks Vapor
Fantastic Thread for Fan Fetishists
Tremendous review--I love your attention to detail and painstaking accuracy.
This is a valued resource that many of us over at OverClock.net are gleaning our data from--I have to say we always turn to XS for the real reviews and findings from hard data.
Can I ask you Vapor in a nutshell what is your opinion of the SilenX Ixtrema 90 CFM fans and Silenx 120mm fans in general? I have a personal interest in this as I was planning to vend these fans on my site and really need to hear the real deal from the Expert in these matters. I was thinking these fans provide the best balance of CFM to DBA for a case fan--but I could be wrong....
Thanks in advance
CyberDruid
I think that it is already mentioned that the SilenX are crap, the real performance isnt on pair with what it claimed.( CFM wise)
Having personally used the 120mm 47cfm 11db (lol) fan, I can say they're rubbish, well, certainly that model is.
Is barely pushes any air, and you can hear it running no problem.
They're overpriced and rubbish.
I replaced mine with an Akasa Amber fan I had lying around, which wasnt much louder, but pushed FAR more air.
E6400 L628 @3.4 1.4V
Ultra 120 Extreme
2GB team Xtreem @ DDR2-850 4 4 3 10
Abit Quad GT
X1800XT flashed to XTPE 700/1600
OCZ GameXstream 600W
I have read through the thread looking for test data on the SilenX--please link me to what I am missing. I would not have asked if I had seen the data posted.
Subjective opinions we have plenty of over at OverClock.Net--it's hard data and findings that are lacking.
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