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
Attention:
If a device, such as a monitor, does not have
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.
There are three levels of specified time that the computer must be inactive before the power management options that are selected take effect. Select the amount of time that is offered within each level.
Level 1 | Set time from 5 minutes to 4 hours. |
Level 2 | Set time from 10 minutes to 5 hours. |
Level 3 | Set time from 15 minutes to 6 hours. |
At each level, you can 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.
v
Processor Speed
Set the microprocessor to be disabled, or to run at 1, 10, 25, or 50 percent of its internal clock speed.
v
Display
Set display to be disabled or to be reduced at these power states:
Chapter 8. Additional Service Information 89
