DTA: Using Power Management
Using Power Management
Saving Monitor Power
Saving IDE Hard-Disk Drive Power
Saving Monitor Power
If a VESA Display Power Management Signaling (DPMS)-compliant monitor is being used, enabling POWER MANAGEMENT reduces monitor power consumption during periods of keyboard and mouse inactivity.
CAUTION: Check the monitor documentation to make sure that a DPMS-compliant monitor is being used, before enabling this feature. Otherwise, the monitor could be damaged.
By setting POWER MANAGEMENT to MAXIMUM, REGULAR, or MINIMUM, the user can set a predefined time-out period after which the monitor will enter standby mode.
Power Management Monitor Standby
Setting Time-outs
MAXIMUM 20 minutes
REGULAR 40 minutes
MINIMUM 60 minutes
NOTE: Each monitor manufacturer defines the details of the shutdown stages for its own monitors. But in all cases, power consumption decreases when a monitor transitions from on (full power) to standby mode (reduced power, where the image on the monitor screen usually disappears). To define the standby stage for the monitor, see the documentation that came with the monitor.
From standby mode, the user can return full power to the monitor in one of the following ways:
 For most DPMS-compliant monitors, any subsequent activity, including moving the mouse, should return
full power to the monitor.
A few DPMS-compliant monitors require that the user turn the monitor's power off and then on again to
return to full power.
Check the monitor documentation for information on how the monitor is designed to operate.
Saving IDE Hard-Disk Drive Power
For IDE hard-disk drives that support the spindown power management feature, enabling POWER MANAGEMENT to MAXIMUM, REGULAR, or MINIMUM, the user can set a predefined time-out period after which the hard-disk drive will spin down.
NOTE: Not all IDE hard-disk drives support this feature.
Power Management IDE Drive
Setting Spindown
Time-outs
MAXIMUM 20 minutes
REGULAR 20 minutes
MINIMUM 20 minutes
In low-power mode, the disks inside the drive stop spinning. They remain idle until the next drive access, which causes them to start spinning again. (Because the disks take a few seconds to regain full speed, the user may notice a slight delay when the hard-disk drive is next accessed.)
When POWER MANAGEMENT is set to DISABLED, the disks spin constantly as long as the system is turned on.
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