Alpha heatsink users known that they had been told to install fan in 'suck' orientation, but this may not be the best orientation.
The article at <A HREF="http://www.anandtech.com/showdoc.html?i=1571" target="_new">Anandtech</A> saying that in 1U case, we should blow.
This is true, I tried it in my friend's system (Alpha Pal 6035 in full tower case), the fan blow towards heatsink reduce his hot Athlon 3C lower than sucking air from heatsink.
Those of you that using Alpha heatsink may give it a trial.
The article at <A HREF="http://www.anandtech.com/showdoc.html?i=1571" target="_new">Anandtech</A> saying that in 1U case, we should blow.
This is true, I tried it in my friend's system (Alpha Pal 6035 in full tower case), the fan blow towards heatsink reduce his hot Athlon 3C lower than sucking air from heatsink.
Those of you that using Alpha heatsink may give it a trial.