Troubleshooting Power Management Problems

Windows XP supports several levels of power management. On systems that are fully compliant with the Advanced Configuration and Power Interface (ACPI) specification, the operating system manages most power-related functions. ACPI is installed on your system (during setup) only if all components are in compliance. On systems that are not ACPI-compliant but use an Advanced Power Management (APM) BIOS, Windows still provides power management, but it is not as extensive as an ACPI-based system. If ACPI and APM are not supported, Windows can still support some power management functions, but they are very limited.

You can configure power options in the Power Options Properties dialog box (shown in Figure 31.9 ...

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