Put em all up!!!
, I need more tips for silencing my computer so far, I've stuck a panaflow on the CPU, Swapped in a Mid speed 80MM panaflow in the PSU (It was too hot in there and the PSU fan was providing nearly all the system ventilation).
I also mounted the front 92MM intake panaflow fan and undervolted it with the Zalman fan controls on rubber plugs but I think the noise is from the actual fan
I run my northbridge fanless as well, I thermal expoxied a big heatsink onto it and rely on the waste air from my CPU heatsink to keep it cool.
To cool my two Video Cards I have a 120MM fan running undervolted as well, it makes a whinny noise so I have to replace the fan on it.
And last but not least I have automotive damping foam nearly all bare spots on the case as well
Betcha u can do a better job than me, (a n00bie)
GO! GO! GO!