Case Cooling? Pressure question?

cTigon · Nov 7, 2015

Currently I'm using the Corsair Graphite 730T Full Tower. I have 2 Corsair LED 140mm Fans blowing intake mounted on the front of the case, and I have 4 120mm Sickleflow fans blowing outtake. 3 mounted on the top, 1 mounted at the back.

I'm pretty sure I have negative air flow. Soon, I will be upgrading my video card from an R9 380 to an R9 390, and that thing generates heat like a nuclear reactor. Not to mention I also have an AMD based build, so I can't screw around with cooling.

Should I spend 20 bucks and mount 1 more 120mm fan blowing intake on the bottom of the case, to help stabilize air flow?

Thanks,

Gam3r01 · Nov 7, 2015

Just move one of the top fans to the bottom as intake. That will give you even airflow (which isnt technically positive, but its better than negative). I would move the front most top fan to the bottom, as generally there is no heat there.

cTigon · Nov 7, 2015

But isn't negative pressure better than neutral pressure?

Gam3r01 · Nov 7, 2015

Negative draws in more dust, so its not really favorable.
Neutral means there is the same cool air entering as warmer air leaving, which should still be fine. Positive is best, as there is less dust.

The Grox Empire · Nov 8, 2015

The whole thing negative and positive are depends on people opinions. But negative surely the best option for best cooling possible. So you're good to go. Your case are extremely good on airflow

bonzer87 · Nov 9, 2015

I don't prefer negative pressure... . Instead having 3 120mm Sickleflow fans blowing out you may change the fan nearest to the front to blow the air in. Dont put any fan in the middle & let the fan nearest to the back blow the air out.

What this does is that the top most front fan will push additional cool air in to the case, then the 2 front fan will push the current air it take with the additional air to the back.
Reason why you dont want to have a fan in the top middle is to avoid cycle air flow... You may use the extra fan to put it at the bottom as another intake...
Now you will have 4 intake air, 2 out-take air, 1 natural ventilation system. More cool air would help to keep that nuclear temp down.

cTigon · Dec 11, 2015

Thanks for answers everyone, I added an extra intake fan.

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