BIOS Advanced Menu CPU Power Management Configuration Options

The following table describes the BIOS Advanced Menu CPU power management configuration options.

Setup Options	Options	Defaults	Description
Power Technology	Disabled/Energy Efficient/Custom	Custom	Enables the power management features.
EIST (GV3)	Enabled/Disabled	Enabled	Enable or disable Enhanced Intel SpeedStep Technology (EIST).
Turbo Mode	Enabled/Disabled	Enabled	Enabled mode is supported only if Turbo Mode is supported in the CPU. Enabled mode also requires that Enhanced Multi Threaded Thermal Monitoring (EMTTM) be enabled on the CPU.
CPU C3 report	Enabled/Disabled	Disabled	Enable/disable the CPU C3 (ACPI C3) report to the operating system.
CPU C6 report	Enabled/Disabled	Enabled	Enable/disable the CPU C6 (ACPI C3) report to the operating system.
Package C State limit	Enabled/Disabled	Enabled	Enable/disable Package C State limit.
Energy Performance	Performance Balanced Performance Balanced Energy Energy Efficiency	Balanced Performance	Use this option to select the Energy Performance mode.
Uncore Frequency Scaling (UFS)	Enabled/Disabled	Disabled	Enable/disable Uncore Frequency Scaling (USF).
Hardware P-States	Disabled Native Mode Out of Band	Native Mode	Select the Hardware P-State. Disable chooses a P-State based on operating system request (Legacy P-States). Native Mode chooses a P-State based on OS guidance. Out of Band lets hardware autonomously choose the P-State (no OS guidance).