Fans over heatsink

Guest2

Guest2

Guest2

Soldato
Joined
6 May 2009
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I have seen some coolers with a fan on one side and another fan on the other side. Presumably this is blowing air accross one way and sucking it out the other side.

I dont know much about overclocking but most CPU heatsink/fans i have had just have a fan blowing down on the heatsink and CPU

Wouldnt it be more wise (as hot air rises) to have say, a 120mm fan on the top of the heatsink, sucking the hot air off it, 1 fan blowing air accross the heatsink and one on the other side sucking the air out. This way most of the heat would be pulled off the metal.

What do you think would happen if i turned my fan on my Scythe heatsink around, so it pulls the hot air off the metal, instead of pushing cold air onto it?
 
Guest2 said:
Wouldnt it be more wise (as hot air rises) to have say, a 120mm fan on the top of the heatsink, sucking the hot air off it, 1 fan blowing air accross the heatsink and one on the other side sucking the air out. This way most of the heat would be pulled off the metal.

it?
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That way the top one would be fighting against the airflow from the other 2 fans and you would get reduced performance.

Guest2 said:
What do you think would happen if i turned my fan on my Scythe heatsink around, so it pulls the hot air off the metal, instead of pushing cold air onto it?
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Push or Pull they both give similar results. Push is probably better though as you probably already have an exhaust fan behind your heatsink. Make sure your heatsink fan isn't fighting against any case fans you have next to it. Push air through the heatsink and if possible into an exhausting case fan.
 
Yep, thats waht i have now. Just one exhaust case fan thats sort of behind the heatsink. Wouldnt it be better to have a fan blowing accross the heatsink (sideways) then into the exhaust case fan, instead of down on top of it?
 
If you have one fan on the front, and one on the back, Then yes that would be better.

But if you only have one fan, Then put it on the front pushing air through the heatsink.
 
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