Undervolt Protection (UVP)
Undervolt Protection is a microcode/processor feature that limits voltages from going below a set of voltage minimums, either of the user-defined BIOS value or default in-spec value (whichever is higher). The processor enforces UVP rules and limits, where selected BIOS can disable or change the minimum.
|Note||Undervolt Protection is only available on 12th Gen Intel® Core™ Processors and newer processors.|
See the table below for UVP configuration with outcomes:
|Configuration||What Is Possible|
|Undervolt Protection||Hypervisor (VBS, HVCI)||Runtime (OS) Undervolting||BIOS Undervolting||Runtime Overclocking||BIOS Overclocking|
Undervolt Protection (UVP) within Intel® XTU
When Undervolt Protection is enabled in Intel® XTU, a control marked with a yellow lightning bolt means that the voltage for that control cannot be set below the BIOS voltage value nor its boot time voltage value (default in-spec). This applies to voltage controls (adaptive and static) and voltage offset controls. With UVP enabled, negative voltage offsets that result in a voltage level below the boot voltage value will not be recognized or applied, and the processor will remain at the previously programmed voltage.
Hovering over a lightning bolt may expose a message: Undervolt Protection is enabled and will prevent voltage from being set below the boot-time voltage.
The image below shows Intel® XTU with UVP applied to Voltage Override and Voltage Offset settings with lightning bolt icon.