Asus L2D L2D User Manual English Edition - Page 54

Power Management Modes

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4 Using the Notebook PC Power Management Modes The Notebook PC has a number of automatic or adjustable power saving features that you can use to maximize battery life and lower Total Cost of Ownership (TCO). You can control some of these features through the Power menu in the BIOS Setup. ACPI power management settings are made through the operating system. The power management features are designed to save as much electricity as possible by putting components into a low power consumption mode as often as possible but also allow full operation on demand. These low power modes are referred to as Standby (or Suspend-to-RAM) and Hibernation mode or Suspend-to-Disk (STD). The Standby mode is a simple function provided by the operating system. When the Notebook PC is in either one of the power saving modes, the status will be shown by the following: Standby: Power LED Blinks and Hibernation: Power LED OFF. Full Power Mode & Maximum Performance The Notebook PC operates in Full Power mode when the power management function is disabled by configuring Windows power management and Speedstep (see Driver & Utility manual). When the Notebook PC is operating in Full Power Mode, the Power LED remains ON. If you are conscious of both system performance and power consumption, select "Maximum Performance" instead of disabling all power management features. ACPI Advanced Configuration and Power Management (ACPI) was developed by Intel, Microsoft, and Toshiba especially for Windows and later to control power management and Plug and Play features. ACPI is the new standard in power management for Notebook PCs. If installing Windows 98 using a BIOS dated 12/1/1999 or later, ACPI is automatically installed. NOTE: APM was used in older operating systems like Windows NT4 and Windows 98. Because newer operating systems like Windows 2000 and Windows ME utilize ACPI, APM is no longer fully supported on this Notebook PC. Suspend Mode In Standby and Hibernation, the CPU clock is stopped and most of the Notebook PC devices are put in their lowest active state. The suspend mode is the lowest power state of the Notebook PC. The Notebook PC enters Suspend when the system remains idle for a specified amount of time or manually using the [Fn][F1] keys. The Power LED blinks when the Notebook PC is in STR mode. In STD mode, the Notebook PC will appear to be powered OFF. Recover from STR by pressing any keyboard button (except Fn). Recover from STD by using the power switch (just like powering ON the Notebook PC). 54

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54
4
Using the Notebook PC
Power Management Modes
The Notebook PC has a number of automatic or adjustable power saving features that you can use to
maximize battery life and lower Total Cost of Ownership (TCO). You can control some of these fea-
tures through the Power menu in the BIOS Setup. ACPI power management settings are made through
the operating system. The power management features are designed to save as much electricity as
possible by putting components into a low power consumption mode as often as possible but also allow
full operation on demand. These low power modes are referred to as
Standby
(or Suspend-to-RAM)
and
Hibernation
mode or Suspend-to-Disk (STD). The Standby mode is a simple function provided by
the operating system. When the Notebook PC is in either one of the power saving modes, the status will
be shown by the following:
Standby: Power LED Blinks
and
Hibernation: Power LED OFF
.
Full Power Mode & Maximum Performance
The Notebook PC operates in Full Power mode when the power management function is disabled by
configuring Windows power management and Speedstep (see Driver & Utility manual). When the
Notebook PC is operating in Full Power Mode, the Power LED remains ON. If you are conscious of
both system performance and power consumption, select “Maximum Performance” instead of dis-
abling all power management features.
ACPI
Advanced Configuration and Power Management (ACPI) was developed by Intel, Microsoft, and Toshiba
especially for Windows and later to control power management and Plug and Play features. ACPI is the
new standard in power management for Notebook PCs. If installing Windows 98 using a BIOS dated
12/1/1999 or later, ACPI is automatically installed.
NOTE: APM was used in older operating systems like Windows NT4 and Windows 98.
Because newer operating systems like Windows 2000 and Windows ME utilize ACPI,
APM is no longer fully supported on this Notebook PC.
Suspend Mode
In
Standby
and
Hibernation
, the CPU clock is stopped and most of the Notebook PC devices are put in
their lowest active state. The suspend mode is the lowest power state of the Notebook PC. The Notebook
PC enters Suspend when the system remains idle for a specified amount of time or manually using the
[Fn][F1] keys. The Power LED blinks when the Notebook PC is in STR mode. In STD mode, the Note-
book PC will appear to be powered OFF.
Recover from STR by pressing any keyboard button (except
Fn). Recover from STD by using the power switch (just like powering ON the Notebook PC).