Asus KN97 User Manual page 48

IV. BIOS SOFTWARE
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.
Suspend Switch (Enable)
This field enables or disables the SMI connector on the motherboard. This connec-
tor connects to the lead from the Suspend switch mounted on the system case.
Doze Speed / Stdby Speed (8/32)
These two fields set the CPU speed during each mode. The number indicates what
the normal CPU speed is divided by.
PM Timers (Disable)
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 Doze, Standby and Suspend sys-
tem inactivation modes.
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 shuts down any IDE hard disk drives in the system after a pe-
riod of inactivity. This time period is user-configurable to 1–15 Min or Disable.
This feature does not affect SCSI hard drives.
The Doze Mode, Standby Mode, and Suspend Mode fields set the period of time
after which each of these modes activate: 1 Min, 2 Min, 4 Min, 8 Min, 10 Min, 20
Min, 30 Min, 1 Hour, 2 Hour, and 4 Hour.
PM Events
This section sets the wake-up call of the system. If activity is detected from any enabled
IRQ channels in the left-hand group, the system wakes up from suspended mode. You
can enable power management for IRQ3–IRQ15 individually in the list at the right of
the screen. The power management feature will work on the enabled IRQ channels.
NOTE: A Microsoft serial mouse or compatible will use either COM1 (IRQ4) or
COM2 (IRQ3), and a PS/2 mouse will use IRQ12. If you know which IRQ your
mouse is using, you can enable the wake-up Event for that IRQ here and the system
will wake up when you move the mouse or click its button.
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IRQ3 (device)-IRQ15 (device)
You can individually Enable or Disable each IRQ to include in the sleep function.
IRQ8 (RTC Alarm) is usually set to Disable so that any software alarm clock or
event calendar can wake up the system.
48 ASUS KN97 User's Manual