Tom's Hardware > Forum > Overclocking > General Discussions > Simple Case Cooling Question:

Simple Case Cooling Question:

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doomsdaydave11   05-07-2008 at 12:31:22 AM

Would 2 of these super cheap 80mm case fans: http://www.newegg.com/Product/Prod [...] 6835150007
Outperform a single high performance 120MM fan? http://www.newegg.com/Product/Prod [...] 6835185060

 

Thanks.

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Lord Gornak   05-07-2008 at 12:47:09 AM
- 0 +

The 120mm produces almost double the air flow of two of the 80mm. So, no IMO.

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rsetter1   05-07-2008 at 01:17:52 AM
- 0 +

Is this some kind of test ?
The specs.
80's- 31.73cfm x2=63.46cfm
120-110.31cfm
uhhhhhh lets see...the 120 flows more.

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doomsdaydave11   05-07-2008 at 01:35:38 AM
- 0 +

I already noticed that... but what conditions are they using? Why should I trust something the company that makes it says? Instead of being an ******* just answer the question.

------------------------------ E8400 3.6Ghz | 4GB DDR2-800 | HD4870 | 780GB HDD Space | VX550W | WinXP | Win7-64 | Ubuntu Studio 8.10

 

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Lord Gornak   05-07-2008 at 07:36:35 PM
- 0 +

It's not about trusting what they say, it's the physics of surface area. Larger fans push and pull more air at lower speeds that smaller fans do at higher speeds.
The 120mm Scythe you used as an example outputs 110.31cfm.
This 90mm Scythe: http://www.newegg.com/Product/Prod [...] Tpk=scythe has a max output of 55.5cfm, half of what a fan that is 30% larger pushes.

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jerreece   05-07-2008 at 08:06:29 PM
- 0 +

The larger fan will push more air, and likely be quieter than having 2 smaller fans. So the 120mm is a win-win situation. Not to mention it could possibly draw less power too (not like that's a very sizeable draw anyhow).

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