Asus D1T - Manual (Page 47)

47
Using the Portable Desktop PC
4
Power Management Modes
The Portable Desktop 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 Portable Desktop 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 Portable Desktop 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
Portable Desktop 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 Portable Desktop PCs. If installing Windows 98 using a BIOS
dated 12/1/1999 or later, ACPI is automatically installed.
Suspend Mode
In Standby and Hibernation, the CPU clock is stopped and most of the Portable Desktop PC devices
are put in their lowest active state. The suspend mode is the lowest power state of the Portable Desktop
PC. The Portable Desktop 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 Portable Desktop PC is in
STR mode. In STD mode, the Portable Desktop 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 Portable Desktop PC).
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 Portable Desktop PC.