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Chapter2
Video Off Option
This field determines when to activate the video off feature for monitor power
management.
Video Off Method
This determines the manner in which the monitor is blanked.
V/H SYNC+Blank
(default)
Blank Screen
DPMS Support
Modem Use IRQ
This determines the IRQ, which can be applied in MODEM use.
3 (default)
4 / 5 / 7 / 9 / 10 / 11 / NA
Soft-Off by PWRBTN
Pressing the power button for more than 4 seconds forces the system to enter the
Soft-Off state when the system has "hung."
The Choices: Delay 4 Sec, Instant-Off (default)
State After Power Failure
AC Power Supply provides power for whole system. ATX Power Supply "ON"
and "OFF" can be controlled by motherboard. It is saved in south bridge chipset
CMOS area are 3 sources provide current save this area; Mother board battery
(3V), Power Supply (5VSB), Power Supply (3.3V). Before AC power cables not
plug in, CMOS use motherboard (3V). After AC power connects in and Power
Supply not open, CMOS use 5VSB in this mean time. Later, when we power ON
Power Supply, CMOS use 3.3V.
Whit above controlled function CMOS, there CMOS 3 options which we can
select from BIOS setup: "Formor-Sts", "On", "Off". "Formor-Sts" means follow
last status of CMOS setting when AC power lost; failed "On", "Off". "Formor-
Sts" means follow last status of CMOS setting when AC power lost; failed. "On"
means always set CMOS in "On" status when AC power lost; failed. "Off" means
BIOS Setup
This selection will cause the system to turn
off the vertical and horizontal
synchronization ports and write blanks to
the video buffer.
This option only writes blanks to the video
buffer.
Initial display power management
signaling.
2-24
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