Bottom intake fans

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pass62

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Aug 24, 2014
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Hi guys,

I have tried to find an answer to this but cant.

I want to put a bottom intake fan into my case. However because of the gap under the case being quite tight, Should I use a high pressure fan or an airflow fan? I worried an airflow fan might struggle to suck air in through the air filter and the tight gap efficiently.


Thanks
 
Solution
J
heres the deal there just fans this one looks to give you the best cfm's at the rated rpm and that's what I would look at
http://www.newegg.com/Product/Product.aspx?Item=N82E16835181045

in theory the greater cfm at the lowest rpm is what you want cause at a lower rpm should be less noise with out sacrificing air flow

a fan running 2000 rpm and pushing 30 cfm or a fan running 1600 rpm pushing 30 cfm??

seems the 1600 would have a better fan blade to get the same air as the one that need 2000 rpm [opinion]
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pass62

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I thought there was a difference? I think maybe they are called high static pressure fans. Something to do with blade design?
 
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pass62

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Aug 24, 2014
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junkeymonkey

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Nov 11, 2013
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heres the deal there just fans this one looks to give you the best cfm's at the rated rpm and that's what I would look at
http://www.newegg.com/Product/Product.aspx?Item=N82E16835181045

in theory the greater cfm at the lowest rpm is what you want cause at a lower rpm should be less noise with out sacrificing air flow

a fan running 2000 rpm and pushing 30 cfm or a fan running 1600 rpm pushing 30 cfm??

seems the 1600 would have a better fan blade to get the same air as the one that need 2000 rpm [opinion]
 
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pass62

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Aug 24, 2014
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Thanks junkeymonkey! I will get the Corsair AF120s then :)
 
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Davil

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Feb 2, 2012
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Static pressure is more important for thick radiators with tightly packed fins and that's really it. I wouldn't recommend the corsair series of fans to be honest. If you want something good check this one out http://www.frozencpu.com/products/12312/fan-797/Aerocool_Shark_White_Edition_120mm_x_25mm_High_Air_Pressure_Fan_w_White_LEDs.html?tl=g36c437s1127. It's about a dB louder so you wouldn't be able to tell the difference and it moves about 30cfm more so a much better fan.
 
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