Quote Originally Posted by pythonse View Post
reached 4.7 no voltage increase...why is my cpu going from 4.7 to 1600 when under no load? should i keep it like that or not? if not how do i stop it?
Keep it like that. You could disable it from UEFI disabling the followings, but I don't recommend it.

Enhanced Halt State (C1E)
CPU C3 State Support
CPU C6 State Support
Package C State Support
Intel Speedstep