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Power management
Power management reduces the power consumption of certain components of the computer such as the
system power supply, processor, hard disk drives, and some monitors.
Automatic conguration and power interface (ACPI) BIOS
Being an ACPI BIOS system, the operating system is allowed to control the power management features
of the computer and the setting for Advanced Power Management (APM) BIOS mode is ignored. Not
all operating systems support ACPI BIOS mode.
Automatic Power-on features
The Automatic Power-On features within the Power Management menu allow you to enable and disable
features that turn on the computer automatically.
• Wake Up on Alarm: You can specify a date and time at which the computer will be turned on
automatically. This can be either a single event or a daily event.
• Wake on LAN: If the computer has a properly congured token-ring or Ethernet LAN adapter card that is
Wake on LAN-enabled and there is remote network management software, you can use the Wake on LAN
feature. When you set Wake on LAN to Enabled, the computer will turn on when it receives a specic
signal from another computer on the local area network (LAN).
To enable the Wake on LAN function or the Wake Up on Alarm function on the Windows 8 or Windows
8.1 operating system, do the following:
1. Open Control Panel.
2. Click Hardware and Sound ➙ Power Options.
3. In the left panel, do one of the following:
• For Windows 8: Click Choose what the power buttons do.
• For Windows 8.1: Click Choose what the power button does.
4. In the Shutdown setting section, clear Turn on fast startup.
Note: If the settings are unavailable, click Change settings that are currently unavailable.
5. Click Save changes.
114 ThinkCentre E73z Hardware Maintenance Manual