None: this enables the voltage sliders for manual configuration
No undervolting: this resets the voltages back to stock voltages
undervolt -25mV: voltages for all frequencies are reduced by fix -25 mV
undervolt -50mV: voltages for all frequencies are reduced by fix -50 mV
undervolt -75mV: voltages for all frequencies are reduced by fix -75 mV
undervolt -100mV: voltages for all frequencies are reduced by fix -100 mV
undervolt light: voltages are reduced via a pattern throughout the frequencies, only light undervolting
undervolt medium: voltages are reduced via a pattern throughout the frequencies, medium undervolting
undervolt heavy: voltages are reduced via a pattern throughout the frequencies, heavy undervolting