Northbridge fan direction?

[IceWeasel]

I'm modifying my northbridge with some active cooling in the form of a 40mm fan. Do I want to mount it blowing onto the chip or sucking air off of the chip? (There is a heatsink between the 2)

Also, I mounted a heatsink on my southbridge as well, should I mount a fan there as well? I have plenty of fans laying around to use.

Thanks!

 

[dj_2004]

blowing on the chip, shouldnt need a fan on the SB

 

[IceWeasel]

anyone else?

 

[potroast]

blowing down... a heat sink is sufficient on the SB, no need for a fan -- but if you have it laying around you can go crazy, I guess -- that's what makes this hobby interesting