CPU Fan placement

[andytarokun]

I am not quite sure definition of push and pull
Does "push" mean pushing air through CPU cooler? (i.e I have a TR U120 extreme and placed a fan in front of the CPU cooler sucking air from open space).
So Pull is sucking air out of CPU cooler? (Exhausting air into open space?)

 

[RallyMaster]

push = push into the fins of the CPU

so yes, your understanding is correct. for the Ultra 120 E, you want it to push air into the cooler. :beer:

 

[tylerdustin2008]

Yes you would want to push air towards the back of the case, well in most cases. As most cases have a rear exhaust, main reason a push is better than a pull is because the air hits the fins allot better in a push configuration. Or you could double up the fans and it won't matter.

 

[Zepper]

Try it either way - see what works best. That's called empirical evidence.

.bh.

 

[andytarokun]

Thanks Guys.
Here is an interesting article indicating pull is 1C cooler than push.....
http://www.xtremesystems.org/forums/showthread.php?t=143335

and this is my config. I did this so I get cool air directly to my TRU120E.

rear 120mm fan TR120E&Fan pulling air towards front of the case.
() -------------------> [ ]()-->

 

[PCTC2]

i have it in a push-pull (dual fan) configuration with 2 TT Smartfans on a fan controller and it works pretty well and silent. just another idea. use 3 rubber bands to hold the second fan on.
http://img158.imageshack.us/my.php?image=antec900lo1.jpg

 

[Spanki]

Originally posted by: PCTC2
http://img158.imageshack.us/my.php?image=antec900lo1.jpg

...and make sure your pets don't walk in front of that wind-tunnel... sheesh! .

 

[Eirgorn]

Edit - will make a new thread once I try a few things out and put my new CPU cooler on.