Hi Guys,
I just updated to Sierra and TurboBoost stopped working (I am overclocking my 3570K from 3.5 to 4.2ghz).
To upgrade, I had to change system definition from MacPro3,1 to iMac14,2 (I also tried iMac12,1 with no luck)
This are my specs
i5 3570K (turboboost 4.2ghz)
Gigabyte z77x-d3h...