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UltraMobilePC
Power Management Modes
The UltraMobilePC 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 "Stand by" (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 UltraMobilePC
is in either one of the power saving modes, the status will be shown by the following: "Stand by":
Power LED Blinks and "Hibernation": Power LED OFF.
Full Power Mode & Maximum Performance
The UltraMobilePC operates in Full Power mode when the power management function is dis-
abled by configuring Windows power management and SpeedStep. When the UltraMobilePC 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 UltraMobilePCs.
NOTE: APM was used in older operating systems like Windows NT4 and Windows 9.
Because newer operating systems like Windows XP, Windows 2000, and Windows
ME utilize ACPI, APM is no longer fully supported on this UltraMobilePC.
Suspend Mode
In "Stand by" (STR) and "Hibernation" (STD), the CPU clock is stopped and most of the Ultra-
MobilePC devices are put in their lowest active state. The suspend mode is the lowest power state
of the UltraMobilePC. The Power LED blinks when the UltraMobilePC is in STR mode. In STD
mode, the UltraMobilePC will appear to be powered OFF. Recover from STD by using the power
switch (just like powering ON the UltraMobilePC).
Power Savings
In addition to reducing the CPU clock, this mode puts devices including the LCD backlight in their
lower active state. The UltraMobilePC enters "Stand by" mode (low priority) when the system
remains idle for a specified amount of time. The time-out can be set through Windows power
management (higher priority). To resume system operation, press any key.
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