Is it better to have cpu water cooling pushing air out the back of the case or pulling it in

dru · Feb 24, 2014

I am due to receive the corsair h80I and was wondering is it better to have the fans pulling air in from the rear of the case or pushing the air out of the rear over the radiator ?

markwp · Feb 24, 2014

Kinda depends on the rest of your cooling setup. I prefer using intake for water (think car radiator), but you must have good exhaust using this setup to make sure the additional heat being put on other components is dissipated quickly.

You really need to make sure you maintain positive pressure using it as intake - i.e. more exhaust than intake. All that said, using the rad as exhaust at the rear also works as it does slightly lessen temps on other components at the loss of a small margin of cooling effectiveness for the rad. Again, make sure you have positive air pressure in the case.

Bottom line - for a cooler that size, it probably won't make much of a difference as long as you maintain more intake than exhaust.

Mark

dru · Feb 24, 2014

markwp :

Kinda depends on the rest of your cooling setup. I prefer using intake for water (think car radiator), but you must have good exhaust using this setup to make sure the additional heat being put on other components is dissipated quickly.

Cheers I have a side intake at 200mm a front intake of 200mm a bottom intake of 120mm and 2 top exhaust at 140mm and 200mm and at the moment a rear exhaust at 120mm
You really need to make sure you maintain positive pressure using it as intake - i.e. more exhaust than intake. All that said, using the rad as exhaust at the rear also works as it does slightly lessen temps on other components at the loss of a small margin of cooling effectiveness for the rad. Again, make sure you have positive air pressure in the case.

Bottom line - for a cooler that size, it probably won't make much of a difference as long as you maintain more intake than exhaust.

Mark

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Is it better to have cpu water cooling pushing air out the back of the case or pulling it in

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