Sceptre s6500 Guia Do Utilizador
Chapter 5: The Power System
83
The APM Interface
In addition to the power saving features built into the resident BIOS System
Configuration Utility, your Notebook also supports the Intel-Microsoft
Advanced Power Management (APM) version 1.2 (or higher) specification.
APM is a cooperative interface that enhances the Notebook’s built-in power
management features by providing one of the most accurate schemes for
detecting true idle. This allows APM implementation to put the CPU in a
lower power state with no loss in user performance. If APM is installed and
properly configured, and power management is enabled in the Setup program,
APM functions in the following manner:
Configuration Utility, your Notebook also supports the Intel-Microsoft
Advanced Power Management (APM) version 1.2 (or higher) specification.
APM is a cooperative interface that enhances the Notebook’s built-in power
management features by providing one of the most accurate schemes for
detecting true idle. This allows APM implementation to put the CPU in a
lower power state with no loss in user performance. If APM is installed and
properly configured, and power management is enabled in the Setup program,
APM functions in the following manner:
•
= Takes over power management from the system Setup program
•
= Constantly monitors all system activity to provide one of the most accurate
detection schemes for determining true idle under DOS, Windows,
Windows 95 and OS/2
Windows 95 and OS/2
•
= Accounts for operating system inactivity and power demands
•
= Accounts for application inactivity and power demands
•
= Allows application programs, DOS and Setup program to share power
management features to ensure more efficient use of power
•
= Determines when power-saving features should be activated
•
= Operates transparent to the user (behind the scenes)
While you are running an APM aware application, APM will detect any system
inactivity. If APM detects that either the operating system or the application is
waiting for input (or is in some other idle state), APM will reduce the CPU to
minimum speed. Once high speed is required again, APM will increase the
CPU to maximum speed. With APM constantly monitoring all system activity,
accounting for the Notebook’s power consumption, and controlling all power-
saving features, you will realize significant additional power savings.
inactivity. If APM detects that either the operating system or the application is
waiting for input (or is in some other idle state), APM will reduce the CPU to
minimum speed. Once high speed is required again, APM will increase the
CPU to maximum speed. With APM constantly monitoring all system activity,
accounting for the Notebook’s power consumption, and controlling all power-
saving features, you will realize significant additional power savings.
If power management is disabled in the BIOS Setup program, APM will also
be disabled regardless of its settings. Once you have enabled the APM
interface, some settings made in the BIOS Setup program may be overridden
by APM.
be disabled regardless of its settings. Once you have enabled the APM
interface, some settings made in the BIOS Setup program may be overridden
by APM.
Refer to your DOS or Windows manual for a more thorough explanation of the
APM interface and its features.
APM interface and its features.