Fan Fake, Or Real Deal? - Overclock.net

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post #1 of 18 Old 12-04-2009, 09:56 AM - Thread Starter
 
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http://www.newegg.com/Product/Produc...82E16835103062

Comes in red and green, available from tigerdirect also.
Question: They're rated for 90cfm @ 19DBa on every site I checked. Can anyone confirm the validity of this?

Thanks,
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post #2 of 18 Old 12-04-2009, 09:59 AM
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It most certainly will not. Try silentpc for more informed reviews of case fans.

http://www.overclock.net/air-cooling...le-fans-3.html
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post #3 of 18 Old 12-04-2009, 09:59 AM
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They're legit. IIRC, they're replacement fans for HAF 922/932 intakes. If you're interested, they're fine.

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post #4 of 18 Old 12-04-2009, 09:59 AM
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Quote:
Originally Posted by the_geek View Post
http://www.newegg.com/Product/Produc...82E16835103062

Comes in red and green, available from tigerdirect also.
Question: They're rated for 90cfm @ 19DBa on every site I checked. Can anyone confirm the validity of this?

Thanks,
the_geek
Improbable. The test that manufacturers do to come up with these numbers is a complete mystery. If they do have any significant airflow while being very quiet they will have zero static pressure.
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post #5 of 18 Old 12-04-2009, 10:00 AM
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Yes they are very quiet I have the red version
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post #6 of 18 Old 12-04-2009, 10:01 AM
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Quote:
Originally Posted by the_geek View Post
http://www.newegg.com/Product/Produc...82E16835103062

Comes in red and green, available from tigerdirect also.
Question: They're rated for 90cfm @ 19DBa on every site I checked. Can anyone confirm the validity of this?

Thanks,
the_geek
They are indeed quiet, but the 19dB is unfortunately the rating for its slowest speed. Worse yet is that the box these come in (and also now Cooler Master's website) say it's rated at 69.69 CFM. This rating of 69.69 CFM seems much more reasonable for how powerful these feel.

I have the blue LED version of this fan, and it's a really quiet fan at 2000 CFM. It's much quieter than I anticipated. If you don't mind the space-age looking black-light type of appearance these have in the dark (they don't really emit much light, but you can certainly see the light), then I absolutely recommend this fan both as a case fan and moreso as a CPU heatsink fan.

These also have a static pressure (or air pressure) rating of 3.04 mmH2O. It certainly feels like this is accurate (judging how the air pressure felt right in front of the fan).

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post #7 of 18 Old 12-04-2009, 10:02 AM
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here's the deal with these fans, they do pump out 90cfm but with not the best static pressure, the 19db rating isn't from when it's at max rpm though, its probably more around 1600 or 1500 rpm opposed to 2000rpm, still at 2000rpm they aren't that loud, i'd say under 309db at 2000rpm

good fans though, I have like 4-5 I believe

also the package of my red led still says 90cfm


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post #8 of 18 Old 12-04-2009, 10:02 AM
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blahh they arent 90cfm. they do push plenty of air tho. GREAT fan for the price

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post #9 of 18 Old 12-04-2009, 10:03 AM
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They are amazing fans I replaced all three of my 120mm intake fans with the green ones and they are very quite and lowered temps by about 3C
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post #10 of 18 Old 12-04-2009, 10:03 AM
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Yep, they're 69 CFM. A Cooler Master representative said they crank all the way up to 90 CFM though with PWM... I think he's lying though TBH.

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