Dell G1 manual 6DYLQJ0RQLWRU3RZHU, 6DYLQJ,+DUGLVNULYH3RZHU, Ulvngdpdjlqjwkhprqlwru

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If you have a Video Electronics Standards Association (VESA®) Display Power Man- agement Signaling (DPMS)-compliant monitor, enabling the Power Management category reduces monitor power consumption during periods of keyboard and mouse inactivity.

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NOTE: The power management feature monitors activity of a mouse connected to the PS/2-compatible mouse port.

By setting Power Management to Maximum, Regular, or Minimum, you can set pre- defined time-out periods (see Table 2-2) 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.

From either shutdown stage, you can return full power to the monitor in one of the fol- lowing 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 you turn monitor power off and then on again to return to full power.

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 (see Table 2-2).

NOTES: All EIDE drives shipped with your system support this feature. (For more information, see “Energy Star Compliance” in Chapter 1.)

However, 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 the Power Management category is disabled.

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, you may notice a slight delay the next time you access the hard-disk drive.)

2-14 Dell OptiPlex G1 Midsize Managed PC Reference and Installation Guide