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Discussion Starter #1
Hi,<br><br>
Ive got a case fan to install on my PC, and i just want to check weather it should be blowing air out or sucking air in.<br><br>
Here's a diagram of my case, i already have a case fan blowing air in, and the PSU obviously blowing out. What should the third fan marked with a '?' be doing?<br><br><img alt="" src="http://www.joonipper.com/cooling.png" style="border:0px solid;"><br><br>
thanks,<br><br>
Nooj
 

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Blowing out.<br><br>
You also need one in the front to intake. Also a side intake like the one you have
 

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Out..
 

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Discussion Starter #4
Ok, thanks!<br><br>
would it matter if i go ahead and install the one at the back blowing out, without having one at the front sucking in?
 

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Yeah its ok...it'll be fine. Try to get one in the front when you can, it'll help have a<br><br>
Back of case<----<-----<Front of case<br><br>
airflow...which is what you want
 

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Your temps would be better if you had a fan sucking in but air is always going to get in somehow so its not that big of an issue.
 

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Actually, a negative airflow (Exhaust) with no intake will provide much better cooling than without any case fan. Although youll get alot of dust accumulating without an intake, but if your willing to put up wth dust and reduce noise, an exhaust is all you need. Not many people are aware that intake fans have a very small effect of temps compared to exhaust fans! <img alt="" class="inlineimg" src="/images/smilies/biggrin.gif" style="border:0px solid;" title="Big Grin">
 
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