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Which way to face fan on heat sink

post #1 of 12
Thread Starter 
Like the title says which is the best way to place the fan on the heatsink so it blows cold air into the heat sink or pushed hot air out?
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Bernice
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post #2 of 12
I always use my fan to blow air through it. What kind of fan is it and what heat sink do you have?
post #3 of 12
Thread Starter 
well its a stock heat sink an i am replacing the fan with a 120mm fan
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post #4 of 12
Yes, always have it blowing air into the heat sink. Good luck and have fun.
post #5 of 12
Blow the fan air in, due to the fact that the cool air will cool the metal that the heat is on and blow the air out on the other side of the heatsink and blowing air out will just be blowing the hot air out not directly cooling the hot metal.
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post #6 of 12
You sometimes see people with one on each side, blowing air through the sink - this might not be hugely beneficial, but it gives a little bit of a boost to cooling. Personally, I have a fan pushing air through the sink, then a second fan on the case ~2" away taking the warm air right out the back.
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post #7 of 12
through it.
    
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post #8 of 12
Quote:
Originally Posted by Revenance View Post
You sometimes see people with one on each side, blowing air through the sink - this might not be hugely beneficial, but it gives a little bit of a boost to cooling. Personally, I have a fan pushing air through the sink, then a second fan on the case ~2" away taking the warm air right out the back.
Same thing I do, it's just with one fan it is best to push air though instead of pull.
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Bob's Computer
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post #9 of 12
You know what guys? What if you have 2 fans, but they're not identical (as in one is faster/pushes more air than the other)? What fan do you place where?
 
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The Asgard II
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post #10 of 12
Quote:
Originally Posted by TheRockMonsi View Post
You know what guys? What if you have 2 fans, but they're not identical (as in one is faster/pushes more air than the other)? What fan do you place where?
MIND BLOWN.

But I would say use the slower RPM fan pulling air due to the fact pushing is better than pulling and the faster RPM pushing the cool air in.
Bob's Computer
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Bob's Computer
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MonitorKeyboardPowerCase
Asus VH238H Logitech G510 HALE90 750W NZXT Phantom Black 
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