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). |