[coreboot] CPU Turbo [KGPE-D16]

I am wondering as to:
* Why 6274 cpu refuses to turbo to the second turbo state with half of 
the cores in use (it stops around 100mhz before the first turbo state)

* Is it possible to force enable second turbo state for all cpu cores, 
assuming adequate cooling? Or is it controlled on the CPU itself?

Off topic but would rather not make another thread:

* Does NUMA ram alignment matter performance wise with only one physical 
CPU? (RAM being split half and half per core set at the moment)

* Does anyone know where I could get a reasonably priced 6287SE or 
6284SE? or (even better) an engineering model of 62xx?