Power Managements - Abit BF6 User Manual

Introduction of the BIOS
System States and Power States
Under ACPI, the operating system directs all system and device power state transitions. The
operating system puts devices in and out of low-power states based on user preferences and
knowledge of how devices are being used by applications. Devices that are not being used
can be turned off. The operating system uses information from applications and user settings
to put the system as a whole into a low-power state.
Table 3-6-1: Wake Up Device and Events
The table below describes which devices or specific events can wake the computer from
specific states.
These device/events can wake up the
computer......
Power switch
RTC alarm
LAN
Modem
IR command
USB
PS/2 keyboard
PS/2 mouse
Table 3-6-2: Effect of Pressing the Power Switch
If the system is in this ......and the power switch
state...... is pressed for
Off Less than four seconds
On More than four seconds
On Less than four seconds
Sleep Less than four seconds
Power Management:
This item allows you to select the type (or degree) of power saving and is directly related to
the following modes:
1. Doze Mode
2. Standby Mode
3. Suspend Mode
4. HDD Power Down
There are three options for power management, three of which have fixed mode settings:
......from this state
Sleeping mode or power off mode
Sleeping mode or power off mode
Sleeping mode or power off mode
Sleeping mode or power off mode
Sleeping mode
Sleeping mode
Sleeping mode
Sleeping mode
......the system enters this
state
Power on
Soft off/Suspend
Fail safe power off
Wake up
User's Manual
3-31