Corsair ML Pro fans

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JackNaylorPE


With water cooling, we still see parroted posts about needing high SP fans. While there was a time when high SP fans were needed. the reason they were needed was that high fpi rads were the norm back then. Now we see this advice being repeated today without acknowledging...
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synphul

synphul

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Mar 11, 2011
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They have specs similar to the industrial ppc fans for the most part except the noctua fans are 7dba quieter and come with a 6yr warranty where the corsairs come with a 5yr. Not to mention pricing, currently the noctua's ippc 120mm are around $5-10 cheaper.

If you compare the 140mm fans, the noctua's beat them on performance. The noctua 140mm ippc 2000 puts out 10cfm more than the ml 140, 1.18 mm/h2o higher static pressure and does so at almost 6dba less than the corsair ml 140. Again with 1yr longer warranty and is a few dollars cheaper.

About the only thing corsair may have going for it is easy fan blade removal for cleaning and led options. With the way corsair's been steadily increasing the price of their fans noctua are no longer all that expensive. The mag lev bearing is novel but it's not reducing any major noise issues.

Newer fans typically suffer more from wind noise than fan bearing noise which is why a fluid bearing vs a non contact bearing like mag lev makes no difference. In fact the more 'traditional' type bearing fan is looking to be quieter so the issue is with the fan blades design/angle etc and ultimately the wind noise they generate even when pushing nearly identical amounts of airflow.
 
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JohnnyLucky

JohnnyLucky

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Jack - WOW The other skeleton is still haunting the forum.

synphul - That's pretty much what I'm thinking too. I am currently using the Noctua industrial fans for overclocking purposes and will continue to use them for a new case mod project. Just got curious since the Corsair specs are close to Noctua.

BTW - Magnetic levitation fans are nothing new. Bought my first pc back in 1984 and have been building and upgrading ever since. Back then Sunon and several other companies had mag lev fans available, Sunnon still does. Dell even had one for their OptiPlex pc's.
 
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JackNaylorPE

JackNaylorPE

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Be aware that Coirsair PWM fans have an issue with being "ganged" ... add to many to a channel and speed control disappears.

http://www.overclock.net/t/1506812/the-best-pwm-rad-fans-going-to-be-very-exact-spec-needs/30

The one thing I would advise is to completely ignore published specs.... when martinsliquidlab was searchable you could go down the 50+ chart of tested fans and find than 1 or 2 actually met published specs.

A fan might blow 80 cfm at 0 SP..... and ) cfm at 1.33 SP.... so instead of saying the fan moves 50 cfm at 1.0 SP, they put 80 cfm / 1.33 on the package.

I always wondered why Noc never tossed a pair of those 2000 rpm fans on their coolers ... this is the only instance where I have seen the Noc fans improved upon (3C at 300 rpm slower).

http://www.overclockersclub.com/reviews/phenteks_f140/3.htm

 
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JohnnyLucky

JohnnyLucky

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Jack wrote: "I always wondered why Noc never tossed a pair of those 2000 rpm fans on their coolers ..."

That's exactly what I have in my current personal pc - a Noctua twin tower heatsink with three 140mm 2,000 rpm industrial fans. I'll probably do something similar with my new build.

Zahid Shabir - I would expect Corsair to eventually have RGB LED fans. Thermaltake did the same thing with their Riing Series fans. At first they were single color fans. Later Thermaltake added RGB fans.

 
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JackNaylorPE

JackNaylorPE

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No, I mean why didn't Noc do it themselves ... my guess is noise. Ya can get an extra 1C cooler out of the Cryorig R1 Ultimate but the D15 is like 5 dbA quieter.

I'm surprised Phanteks hasn't done the RGB thing ... they already have the Luxe with built in RGB exterior LEDs, you can add interior RGB LEDs and since it already has the built in RGB color control panel, seems like the proverbial no brainer
 
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JohnnyLucky

JohnnyLucky

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Jack - Interesting that you mentioned the Cryorig R1 Ultimate. Technical reviews werre very favorable. I just happen to have one in a spare parts bin. A youngster purchased one without checking dimensions. The heasink was too tall for his midtower case so I bought it for half price. I'm considering installing it with Noctua industrial fans. The Cryorig is designed for use with 140mm round frame fans but that can easily be corrected using a case mod solution.
 
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Z

Zahid Shabir

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i know of the riing fans but i expect to see ML fans drop in price by around $5 by the end of the year and by the end of next year more fan manufacturers to include RGB
 
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JackNaylorPE

JackNaylorPE

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With water cooling, we still see parroted posts about needing high SP fans. While there was a time when high SP fans were needed. the reason they were needed was that high fpi rads were the norm back then. Now we see this advice being repeated today without acknowledging that high fpi rads are very rare. With little to be gained performance wise anymore due to increases in efficiencies in CPU and GPU designs, it's all about noise. To reduce noise, rad manufacturers went to low - medium fpi designs where high SP fans serve no purpose.

Similarly, the fan speed and SP is selected based upon the spacing between fins on the heat sink. The efficiency of the assembly will peak when these two factors are perfectly matched.... using faster rpm fans will undoubtedly increase cooling but it will also reduce efficiency due to the trying to force the proverbial 5 cuft of air thru a 2 cuft sized opening. So while cooling will increase, the relative increase in cooling will be far less than the increase in rpm. And all that means more turbulence and a lot more noise.

So yes, I think it will be an interesting experiment. I don't think it will be viable at full speed due to noise, but you may find toning it down to a 500 - 1500 rpm range quite viable.

 
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