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3.4.1 ACPI Settings
ACPI Settings
Enable ACPI Auto Configuration
ACPI Sleep State
Enable CPPC
Enable DVFS
Enable LPI
Description
Select Enabled to let the BIOS select the best ACPI options for the system.
Select Disabled to manual change ACPI following settings.
Supports only Sleep State S3.
The options are S3 and Disabled.
Allow Firmware to communicate with OS using CPPC
(Collaborative Processor Performance Control).
The options are Enabled and Disabled.
Enable DVFS (Dynamic Voltage and Frequency Scaling) mode.
This mode can be changed only when CPPC enabled and
the chip supports it.
The options are Enabled and Disabled.
Allow the system to go to LPI (Lower Power Idle) mode.
The options are Enabled and Disabled.
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