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Old 05-14-2004, 06:13 PM   #1 (permalink)
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Join Date: Apr 2004
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Default CPU Fans

i have always positioned my CPU fan blowing towards the heatsink, although today i saw a custom built PC which the CPU fan blows away from the heatsink. So was i right all this time? or is my PC in danger?

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Old 05-15-2004, 01:09 AM   #2 (permalink)
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I think it suppose to point away from the heatsink, this way it will draw the heat out of the heatsink! Just my thought!

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Old 05-15-2004, 06:11 AM   #3 (permalink)
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Join Date: Nov 2003
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I guess this could turn into a "heated" debate, but I don't think it matters which direction the air is going, just make sure it's going.

If the same volume of air is moving across or over the heatsink, the heat is being transfered.

I guess someone with a little time on their hands and an accurate thermometer could experiment and report the results.

On a personal observation note, I would think that air being directed to the heatsink (blowing down) would be more efficient, becuase it "hits" the heat sink instead of the action of pulling air past the surface of the 'sink.

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