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Blowhole.....Sucking or Blowing?

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May 25, 2001
Im mounting a blowhole in the top portion of my case(duh) but i have read artcles on it both blowing in air and sucking out the hot air. What do you guys do?
You want to draw air out of the case at the top. in at the bottom.

also if you can, you want a little pos pressure in the case. this helps get rid of hot spots.......
I agree in general with it blowing out.
You need to consider how much you have going in thou if you care about not creating negative pressure.
Blowing out at the top of the case. Air rises, so the hottest air will be at the top.