Is case air flow necessary?

[ToledoSteel]

I am seriously considering watercooling my systems. My main concern is that my one case doesn't have room inside for the radiator, so would i need case fans blowing to keep the ambient air from getting to hot? It is an matx case btw.

[greenman100]

Your PSU fan should be enough, unless you have a non-watercooled high-end graphics card, in which case you should add a case fan or two.

[stasiu]

i've seen some nice setups utilize the exhaust fans on the back of the case to blow through a radioator for a w/c setup. This way you don't have to worry about a radiator in the case

[johan851]

Good case airflow is still quite necessary. Your CPU and GPU are responsible for a lot of the heat, but there's also a lot of heat coming from mosfets, the NB, hard drives, etc. It's always good to keep some air moving through there.