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Bigger intake fans or exhaust?

post #1 of 4
Thread Starter 
Hey guys,

just wondering if it would be better to have larger intake fans with small exhaust or small intake with big exhaust?

More specifically say a Corsair 650D with a H100 on the top,
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post #2 of 4
its either going to be positive pressure vs negative pressure. could try both and see what helps you the most.
    
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post #3 of 4
big intake and small exhaust
   
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post #4 of 4
depends on placement. 120mm fans tend to have more static pressure, resulting in a tighter, longer "throw" of current, which is why I like them for intake, especially when far from components. They also tend to be smoother at high rpm. Large exhaust can cover more area (such as top mounted) and dont need to be running as high since they're working with the natural current, more so than creating current.
    
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