Updated: 09/15/2017 by Computer Hope

Alternatively known as undervolting, undervoltage is a reduction of power to one or more devices in a computer to help conserve power and reduce heat. For example, a laptop user could undervolt their computer processor and notice a reduction of heat and an increase of battery life.

To adjust your processor voltage, you can use CPU utilities such as the RightMark CPU Clock utility.


An undervoltage should not be confused with a voltage drop (brown out).

Power terms, Voltage