Even with generated C and P states, it does not lower the temp. of the D4x0.
Notice this:
D430, running powerpack full power on cpu stays at same temp. as D430 running without powerpack AND coolbook controller.
Meaning, if we want to retain the same tempreture without the powerpack, then we have to level down the cpu - something tells me, that OSX just can't handle the cpu correctly without the powerpack.. sadly..