Chapter 3
35
3-5 Power Management Setup
This section provides information on the Green PC power management functions. By
choosing the Power Management Setup option from the CMOS Setup Utility menu
(Figure 3-1), the screen below is displayed. This sample screen contains the
manufacturer's default values for the motherboard.
Figure 3-6 Power Management Setup
ACPI Suspend Type:
This item specifies the power saving modes for ACPI function. Available options are:
1.
S1 (POS) -
The S1 state is low power state. In this state, no system context (CPU or
Chipset) is lost and the hardware maintains all system contexts.
2.
S3 (STR) -
The S3 state is a lower power state, where the information of system
configuration and opened applications / files are saved to main memory. The
remaining power of other hardware components are turn off to save energy.
3.
S1&S3
– The S1&S3 state will allow the BIOS to auto detect the motherboard’s
power saving mode between S1 and S3.
The information stored in memory will be used to restore the system when a [
wake
up
] event occurs
Power Management:
Power management allows the computer to save electricity when it is not in use by
entering increasingly deep power saving modes.
Video Off Method:
This function serves as both a screen saver and power saver for monitors. See the next
function, Video Off After, for setting the video timer.
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1.
Blank Screen
- BIOS will only blank the monitor's screen. The electricity saved in
this mode is negligible and this function is only used as a screen saver to prevent
screen damage while the screen is on but not in use.
2.
V/H SYNC+Blank
- The system turns off the vertical and horizontal
synchronization ports, writes blanks to the VGA buffer and the monitor's electron
gun turns off. This function requires a monitor with Green features in order to take
advantage of the power saving function. If you enable this function and do not have
a Green monitor, the result will be the same as if you had selected Blank. This
function serves as both a screen saver and a power saver.
3.
DPMS Support
- Select this option if your video card supports the Display Power
Management Signaling (DPMS) standard (i.e., you have a monitor that supports
Green features). Use software supplied by your video subsystem to set video power
management options.
HDD Power Down:
Shuts down any IDE hard disk drives in the system after a period of inactivity as set in
this user configurable field. This feature does not affect SCSI hard drives.
HDD Down In Suspend
In Suspend any IDE hard disk drives in the system after a period of inactivity as set in
this user configurable field. This feature does not affect SCSI hard drives.
Soft-Off by PBTN
When set to Delay 4 Sec., this function allows the power button to put the system in
Suspend, a power saving mode. When set to Instant-Off the Soft-Off by PWR-BTN
function is disabled and the computer turns completely off when the power button is
pressed.
PwROn After PwR-Fail
This allows you to set whether you want your system to reboot after the power has
been interrupted. [
Off
] leaves your system off and [
On
] reboots your system.
[
Former-Sts
] sets your system back to the state it is before the power interruption.
Available options include [
Disabled
], [
Enabled
], [
Former-Sts
].
Wake up Events
1.
Power On by PME/OnBoard LAN:
When enabled, the nVidia LAN, which is on Board, will be able to
receive a signal
and wake up the system from soft off and suspend mode. You should connect the
LAN to the RJ45 port and turn on the resume event in suspend mode.
2.
Power On by Ring:
When enabled, a Modem (
PCI Card or Ext. Modem
) will be able to receive a
