IBM 300 Series 6268, Hardware Maintenance Manual

Page: 268 / 450

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 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:
Ÿ
System Power:
– Select On for the computer to remain on.
– Select Off for the computer to shut down.
Ÿ
Processor Speed:
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IBM PC 300/IntelliStation/Aptiva Vol 2 HMM