Cabinet cooling doubts

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Agera One

Agera One

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Apr 11, 2014
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Take this Cooler Master HAF 912 Combat Cabinet for example... I have four questions.

Question 1: The cooling system section under "specs" tab for that cabinet shows front, top, side, rear fans. The overview tab shows the intake and exhaust direction. Does this direction depends on the mobo-fan connection or we can change it?

Question 2: Should I utilise (or install) as much number of fans as possible for a full-time gaming purpose system? (room temperature ~30 C; no overclocked components; no after market cooling system; no AC in room)

Question 3: Cooling efficiency in Two 120 mm fans VS one 200 mm fan (with same RPM, fan profile & CFM on all fans)?

Question 4: Which will be efficient method for cooling?
a) Intake air > Exhaust air
b) Exhaust air > Intake air
c) Intake air = Exhaust air
 
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Conor17777

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Aug 23, 2014
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The most efficient way for cooling would be :
Exhaust air > Intake air
This is because the intake fans will only push air in so long as the air in the case is being pushed out.
Ontop of this, to reduce temperatures inside the case i would advise fitting a 200mm fan in the top of the case,
2x 120mm in the front of the case and a 120mm at the exhaust rear of the case.

Good luck :)
 
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smackers_12

smackers_12

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Jul 4, 2013
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Intake air>exhaust air will keep dust out. Depending on what way you screw the fan in is weather it will be intake or exhaust. You shouldn't need the max number of fans in a system depending on what is in it. Now question 3 is interesting. Common sense would say the 200 as 200mm*200mm>120*240. I dont know if that would actually work though.
 
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Agera One

Agera One

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Apr 11, 2014
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Not 200*200.. One 200mm fan vs two 120mm fans.
 
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smackers_12

smackers_12

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Jul 4, 2013
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You misunderstood me, a 200mm fan has diameter 200mm, thus its area is approx 200*200 (Well actually its pi(100)^2 but anyway) and two 120s will be ~120*240 (actually 2*pi60^2). The area of the 200mm fan is greater than the two 120mm fans. Dont know if the air pushed is proportional to the area of fan for same rpm/blade design etc
 
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