Power Management; Automatic Configuration And Power Interface (Acpi) Bios; Automatic Power-On Features - Lenovo ThinkStation S20 4157 Hardware Manual

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 configuration 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.
v Serial Port A Ring Detect: With this feature set to Enabled and an external
v PCI Modem Ring Detect: With this feature set to Enabled, the computer will
v PCI Wake Up: This feature allows PCI cards that support this capability to wake
v Wake Up on Alarm: You can specify a date and time at which the computer will
v Wake on LAN: If the computer has a properly configured token-ring or Ethernet
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modem connected to serial port (COM1), the computer will turn on
automatically when a ring is detected on the modem.
turn on automatically when a ring is detected on the internal modem.
the system.
be turned on automatically. This can be either a single event or a daily event.
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 specific
signal from another computer on the local area network (LAN).