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120mm vs 140mm fan?

Last response: in Components
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November 8, 2011 12:05:59 AM

Hi there, I am building a new computer and have a decision on fans for my case. I have narrowed it down to these two options.

http://www.pccasegear.com/index.php?main_page=product_i... 120mm

http://www.pccasegear.com/index.php?main_page=product_i... 140mm

I can install either of these fans sizes in my case and on my CPU cooler.

This is my case: http://www.pccasegear.com/index.php?main_page=product_i...

And this is my CPU cooler: http://www.pccasegear.com/index.php?main_page=product_i...

They can in install either 120mm or 140mm fans. I will be buying 9 fans, 2 for my CPU cooler and 7 for the case (3 for the top, 2 for the front, 1 for the bottom and 1 for the back.

I think that I should go with the 120mm because it pushes almost 15CFM more than the 140mm at the same noise level.

Could you please help me on this one!

Thanks!

More about : 120mm 140mm fan

November 8, 2011 12:53:54 AM

It seems that no one can answer this. Would the bigger 140mm be better for airflow and cooling or the higher CFM 120mm fan?

Thanks!

Best solution

a c 665 ) Power supply
a c 787 à CPUs
November 8, 2011 1:07:35 AM
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Higher CFM means more airflow! More cooling comes with more airflow!
The only thing the 140mm has is that it rotates slower and therefore is slightly more quiet!
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November 8, 2011 1:49:54 AM

So the 120mm it is?

Thanks!
November 8, 2011 7:55:39 AM

Would it be a better idea to have a 140mm fan for the CPU cooler because it will cool more of the surface area? Or is it still better to get a 120mm fan that pushes ~ 15 CFM more?

Thanks and I really need an answer since I am buying soon.
a c 665 ) Power supply
a c 787 à CPUs
November 8, 2011 9:54:00 AM

The CFM is what provides the cooling so the 120mm is going to be the better.
a b à CPUs
November 8, 2011 10:05:02 AM

JUst what are you building that you need 7 case fans for? Has Nvidia come out with nuclear powered GPU's?
November 8, 2011 11:31:59 AM

Well the case I am getting supports 3 top fans, 2 front fans, 1 back fan and 1 bottom fan. It also supports 1 180mm side fan. I was just curious what fan would be better. Thanks! I thibk ill go with the 120mm fan.
November 8, 2011 8:19:58 PM

Whats the point of the link? It isn't even better than the fans I suggested. It is only capable of 76CFM vs a fan that spins 100 RPM slower and 34CFM more. I don't care about noise.

Thanks for the answers and i think the scythe 1900 RPM fan is the best on the site.
November 14, 2011 11:21:29 PM

Best answer selected by appleshaq.
!