What I'm specifically saying is that the radiator should be on the outside. Like it is on a fridge, or building's AC system. There are good reasons not to do this on a car.
I mean, the radiator goes at the edge of the case so the heat can be directly exhausted.
If you use a normal air cooler, it still has a radiator (and heat pipes) but it's right in the middle, on top of the CPU, and generally relies on the case fan to get the hot air outside.
What I'm specifically saying is that the radiator should be on the outside. Like it is on a fridge, or building's AC system. There are good reasons not to do this on a car.