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ASUS P2B-D2 User’s Manual52
IV. BIOS SOFTWARE
IV. BIOS
Power Management
Video Off Method (DPMS OFF)
This field defines the video off features. The following options are available: DPMS
OFF, DPMS Reduce ON, Blank Screen, V/H SYNC+Blank, DPMS Standby, and
DPMS Suspend. The DPMS (Display Power Management System) features allow
the BIOS to control the video display card if it supports the DPMS feature. Blank
Screen only blanks the screen (use this for monitors without power management or
“green” features. If set up in your system, your screen saver will not display with
Blank Screen selected). V/H SYNC+Blank blanks the screen and turns off vertical
and horizontal scanning.
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PM Timers
This section controls the time-out settings for the Power Management scheme.
The fields included in this section are “HDD Power Down”, which places the
hard disk into its lowest power consumption mode, and the “Suspend Mode”
which suspends the CPU.
The system automatically “wakes up” from any power saving mode when
there is system activity such as when a key is pressed from the keyboard, or
when there is activity detected from the enabled IRQ channels.
HDD Power Down (Disable)
Shuts down any IDE hard disk drives in the system after a period of inactivity.
This time period is user-configurable to 1–15 Min or Disable. This feature
does not affect SCSI hard drives.
Suspend Mode (Disable)
Sets the period of time after which each of these modes activate: 30 sec, 1
Min, 2 Min, 4 Min, 8 Min, 20 Min, 30 Min, 40 Min, 1 Hour, and Disable.
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Power Up Control
This section determines the ways the system can be controlled when it is
started or restarted, when modem activity is detected, or when power to the
computer is interrupted and reapplied. The Soft-Off mode refers to powering
off the system through a momentary button switch (ATX switch) or through
the software as opposed to disconnecting the AC power by way of a rocker
switch or other means.
PWR Button < 4 Secs (Soft Off)
When set to Soft Off, the ATX switch can be used as a normal system power-
off button when pressed for less than 4 seconds. Suspend allows the button
to have a dual function where pressing less than 4 seconds will place the
system in sleep mode. Regardless of the setting, holding the ATX switch for
more than 4 seconds will power off the system.