Lenovo Notebook Computer User Guide

system (such as Microsoft Windows ME, Microsoft Windows 2000, Microsoft Windows XP) also needs to support ACPI. In Microsoft Windows XP and Microsoft Windows 2000, ACPI will overwrite the BIOS power management settings and take over the computer’s power management functions.

Refer to the Microsoft Windows guide for the details or use online support.

Under a pure DOS system, the BIOS directly controls the power management functions.

2.1.2The power management under Windows XP ACPI

mode

Under the ACPI mode of the Microsoft Windows XP operating system, the system power management will be controlled by the operating system, so all the power management settings can be modified through Control Panel ‐> Performance and Maintenance ‐> Power Options.

2.1.3Turn off the monitor or hard disk

You can modify the power schemes to turn off the monitor or hard disk after the system is idle for a certain time, go to Control Panel ‐> Performance and Maintenance ‐> Power Options.

2.1.4Standby mode

Standby mode suspends the system to RAM (STR). Under this

mode, the computer turns off the monitor and hard disk to reduce

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Lenovo Y400 Series manual Power management under Windows XP Acpi Mode, Turn off the monitor or hard disk, Standby mode