Users Guide

Using the System Setup Program 3-15
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If you have a Video Electronics Standards Association (VESA
®
) Display Power Man-
agement Signaling (DPMS)-compliant monitor, enabling Power Management reduces
monitor power consumption during periods of keyboard and mouse inactivity
.
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NOTES: Some 3D graphics cards do not support DPMS. Refer to the documentation
for your particular 3D graphics card for information.
The power management
feature monitors activity of a mouse connected to the Personal
System/2 (PS/2)-compatible mouse port.
By setting Power Management to Maximum, Regular, or Minimum, you can set pre-
defined time-out periods (see Table 3-2) for the two successive monitor shutdown
stages,
standby
and
off
.
NOTE: Each monitor manufacturer defines the details of the shutdown stages for its
own monitors. But in all cases, power consumption decreases with each stage from
“on” (full power) to “standby” (reduced power; the display image usually disappears)
to “off” (where power consumption is minimal). To define these stages for your mon-
itor, see the documentation that came with the monitor.
For most DPMS-compliant monitors, any subsequent activity—including moving the
mouse—returns full power to the monitor.
Check your monitor documentation for information on how your monitor is designed
to operate.
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For most systems, enabling Power Management at any level causes EIDE hard-disk
drives to switch to low-power mode after about 20 minutes of system inactivity.
NOTE: Not all EIDE hard-disk drives support this feature. Enabling this feature for
drives that do not support it may cause the EIDE drive to become inoperable until the
computer is restarted and Power Management is disabled.
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Disabled Never Never Never
Maximum 20 minutes 10 minutes 1 hour
Regular 20 minutes 20 minutes 1 hour
Minimum 20 minutes 1 hour Never
23205BK0.BK : 23205C30.FM Page 15 Wednesday, March 18, 1998 1:51 PM
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