You might need to up the core voltage, you might not.
Set it to auto. If it increases the voltage, check your CPU is stable and then try setting it manually to lower values.
If it doesn't increase the voltage, then check your CPU is stable, and then change the voltage up if it's not.
You might need to change the voltage, you might not, but you might as well leave it on auto and see what happens. You can always adjust it if you need to afterwards.