which way to put HSF

[Seraphim974]

got a panaflo for my thermalright heatsink today and am quite confused as to which way the fan should be blowing... At the cpu or away from the cpu? also, which way do video card fans blow, in the same direction that the HSFs do? thanks

 

[Chomp]

It might depend on the heatsink, but generally you want the fan blowing DOWN onto the heatsink. Some fans have arrows on them to show which way they blow. Mine blows down and up towards the power supply.

 

[Carnival Forces]

http://tweak3d.net/tweak/airflowtweak/5.shtml read pages 5-6.

http://www.hardforum.com/showthread.php?s=&threadid=710208
if you look in that thread, you'll see the above guide listed...