oh and are those 5 fans that I mentioned able to lower/increase the RPM according to the cpu temp. ? I don't wanna change the RPM manually =\ To do that the fan needs to be PWM (4 pin). Only the AC fan of those you mentioned is PWM. another question : will it help if I install 2 fans on TRUE , one ...

HDT it's bullshit and you'll need a powerfull and noisy fan to keep the temperatures low (depends also on CPU's TDP). This is a rather confusing comment. This and this seem to suggest different to what you just said. Maybe you could school us? Those Xigmateks performed good due to the unfair method...

I see that you want a quiet CPU cooler. Then you need a cooler that performs very well at low rpm or even fanless. Most of the coolers recomended above suck at low rpm (except the Mega Shadow). First of all, the Hyper 212 Plus it's a joke. HDT it's bullshit and you'll need a powerfull and noisy fan ...