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. Advanced Power Management and Rapid Resume
™
Manager are
features of some personal computers.
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 are ignored. Not all operating systems support
ACPI BIOS mode.
Advanced Power Management
Energy-saving settings can be viewed and changed by using the Advanced Power
Management menu in the Configuration/Setup Utility program.
Attention:
If a device, such as a monitor,does not have power-management capabilities, it can be
damaged when exposed to a reduced-power state. Before making energy-saving selections
for the monitor,check the documentation supplied with the monitor to see if it supports
Display Power Management Signaling (DPMS).
Automatic Hardware Power Management features
Automatic Hardware Power Management can reduce the power states of the
computer, processor,and monitor (if the monitor supports DPMS) if they are
inactive for a predetermined length of time.
Set the time for the system to enter a low-power state.
Youcan define the amount of energy savings by specifying values for the
following options.
v
System Power
– Select On for the computer to remain on.
– Select Off for the computer to shut down.
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.
vSerial Port A Ring Detect: With this featureset to Enabled and an external
modem connected to serial port (COM1), the computer will turn on
automatically when a ring is detected on the modem.
vPCI Modem Ring Detect: With this feature set to Enabled , the computer will
turn on automatically when a ring is detected on the internal modem.
vPCI Wake Up: This featureallow PCI cards that support this capability to wake
the system.
vWake 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.
vWake on LAN: If the computer has a properlyconfigured token-ring or Ethernet
LAN adapter card that is Wakeon LAN-enabled and there is remote network
Chapter9. Additional Service Information 107