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Using the Notebook PC
4
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 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).