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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 3-5 Power Management Setup
ACPI Suspend Type:
This feature allows users to select a suspend type for the operating system to turn off
peripheral devices such as CD-ROM player when it’s not in use.
Run VGABIOS if S3 Resume
Available options are [
Auto
], [
Yes
], [
No
].
Power Management:
Power management saves electricity while the system is idle by entering
power-saving modes.
Video Off Method:
This function serves as both screen saver and power saver for the monitors. See the
next function, Video Off After, for setting the video timer.
1.
Blank Screen
- BIOS will change the monitor screen to blank. 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 idle.
2.
V/H SYNC+ Blank
- The system turns off the vertical and horizontal
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synchronization ports, writes blanks to the VGA buffer and the monitor's
electron gun turns off. This function requires monitors 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
- 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.
Video off in Suspend:
This setting determines when the monitor enters power saving mode if it is set to
Yes. The Power Management function must be enabled to use this function.
Suspend Type
Available options are [Stop Grant] and [PwrOn Suspend].
MODEM Use IRQ:
If your computer has a built-in modem use this function to inform BIOS the IRQ
value occupied by the modem card. When the system is in Green mode, the modem
requires an IRQ assignment to activate the system to perform tasks. This assignment
is complaint with the APM 1.2 compliant operating systems.
Suspend Mode:
The Power Management function is set as [
Enabled
] to activate this function. If the
system runs in Standby mode and the Suspend timer expires, all devices regulated
by power management will shut down and the CPU speed will be 0 MHz.
HDD Power Down:
It shuts down any IDE hard disk drives in the system after an idle period. This
feature does not affect SCSI hard drives.
Soft-Off by PWR-BTTN:
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.
Wake up Events
1.
Power On by PCI / Onbd LAN:
When enabled, a PCI interface that receives a signal will activate the system from
soft off and green mode.