IBM PCM-5896 manual Determines the manner in which the monitor is blanked

PM Control by APM

If Advanced Power Management (APM) is installed on your system, selecting Yes gives better power savings.

MODEM Use IRQ

Name the interrupt request (IRQ) line assigned to the modem (if any) on your system. Activity of the selected IRQ always awakens the system.

Video Off Method

Determines the manner in which the monitor is blanked.

V/H SYNC+Blank System turns off vertical and horizontal synchronization ports and writes blanks to the video buffer.

DPMS Support	Select this option if your monitor supports
	the Display Power Management Signaling
	(DPMS) standard of the Video Electronics
	Standards Association (VESA). Use the
	software supplied for your video subsystem
	to select video power management values.
Blank Screen	System only writes blanks to the video
	buffer.

HDD Power Down

After the selected period of drive inactivity, any system IDE devices compatible with the ATA-2 specification or later power manage themselves, putting themselves into an idle state after the specified timeout and then waking themselves up when accessed.

Doze Mode

After the selected period of system inactivity, the CPU clock throttles to a small percentage of its duty cycle — between 10 percent and 25 percent for most chipsets. All other devices still operate at full speed.

Chapter 3 Award BIOS Setup 65