To access the power management setup screen or ACPI settings, restart your computer and enter the BIOS/UEFI setup by pressing a specific key during boot-up, typically F2, Del, or Esc (the exact key varies by manufacturer). Once in the BIOS/UEFI interface, navigate to the "Power Management" or "Advanced" tab, where you'll find options related to ACPI configuration. Make any desired changes, then save and exit the setup to apply the settings.
With ACPI the operating system controls power management.
APM (Advanced Power Management).
ACPI is the successor APMOperating System
Advanced Configuration and Power Interface (ACPI)
ACPI (advanced configuration and power interface)
your system may support Advanced Configuration and Power Management (ACPI). check to see whether your system supports ACPI
APM (Advanced Power Management) as WIKI answers it... is an API developed by Intel and Microsoft which enables an operating system running an IBM-compatible personal computer to work with the BIOS (part of the computer's firmware) to achieve power management.
ACPI
A technician can enable ACPI (Advanced Configuration and Power Interface) mode in the laptop's BIOS or UEFI firmware settings. To access this, they typically need to restart the laptop and press a specific key (like F2, Del, or Esc) during boot-up to enter the BIOS setup. Within the BIOS menu, the technician should navigate to the power management or advanced settings section to find the ACPI option and enable it. After making changes, they should save the settings and exit the BIOS.
First released in December of 1996, "ACPI" stands for Advanced Configuration and Power Interface. It defines platform-independent interfaces for hardware discovery, configuration, power management and monitoring. It was originally developed by Intel, Microsoft, and Toshiba.
Your system BIOS must be ACPI compliant.
ACPI stands for Advanced Configuration and Power Interface. ACPI provides a standard for configuring devices and managing power for the operating system.