Here are my settings for 4.6 Good luck! Keep in mind the offset may be different for you as your CPU may require more or less voltage to boot. What I did was set it to auto, booted into windows checked vcore at max load and set my offset accordingly. When you set this it will effect your idle voltage so if you are under voltage your system will not boot into windows.
4.6 ghz bios offset 1.jpg4.6 ghz bios offset 2.jpg4.6 ghz bios offset 3.jpg