Dell OptiPlex Gs Reference And Installation Manual

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Dell OptiPlex Gs Reference And Installation Manual Manual pdf 32 page image

2-8 Dell OptiPlex Gs and Gs+ Low-Profile Systems Reference and Installation GuidePOWER MANAGEMENT can be implemented at threelevels—options are MAXIMUM, REGULAR, and MINIMUM.(The different levels apply to the monitor only; hard-diskdrive operation is the same for all three.) The feature canalso be set to DISABLED.NOTE: The Dell Energy Manager utility (available onlyon systems running Windows 3.x or Windows for Work-groups) lets you assign time-out settings that deviatefrom the predefined MAXIMUM, REGULAR, and MINIMUMsettings available through the POWER MANAGEMENT cat-egory. If you have used the Dell Energy Manager tocustomize your time-out periods, the POWER MANAGE-MENT category may display CUSTOM as its setting. (Formore information on the Dell Energy Manager, see“Using Drivers and Utilities” in your online SystemUser’s Guide.)Saving Monitor PowerIf you have a Video Electronics Standards Association(VESA® ) Display Power Management Signaling (DPMS)-compliant monitor, enabling the POWER MANAGEMENTcategory reduces monitor power consumption duringperiods of keyboard and mouse inactivity.NOTE: The power management feature monitors the activityof 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 predefined time-out periods (seeTable 2-2) for the two successive monitor shutdown stages,standby and off.NOTE: Each monitor manufacturer defines the details ofthe shutdown stages for its own monitors. But in allcases, power consumption decreases with each stagefrom “on” (full power) to “standby” (reduced power; thedisplay image usually disappears) to “off” (where powerconsumption is minimal). To determine these stages foryour monitor, see the documentation that came with themonitor.From any of these shutdown stages, you can return fullpower to the monitor in one of the following ways:• For most DPMS-compliant monitors, any subsequentactivity—including moving the mouse—should returnfull power to the monitor.• A few DPMS-compliant monitors require that youturn monitor power off and then on again to return tofull power.Check your monitor documentation for information onhow your monitor is designed to operate.Saving EIDE Hard-Disk Drive PowerFor most systems, enabling POWER MANAGEMENT at anylevel causes EIDE hard-disk drives to switch to low-power mode after about 20 minutes of system inactivity.NOTES: All EIDE drives shipped with your systemsupport this feature. (For more information on EnergyStar systems, see “Energy Star Compliance” inChapter 1.)However, not all EIDE hard-disk drives support this fea-ture. Enabling this feature for drives that do not supportit may cause the EIDE drive to become inoperable untilthe computer is restarted and the POWER MANAGEMENTcategory is disabled.In low-power mode, the disks inside the drive stop spin-ning. They remain idle until the next drive access, whichcauses them to start spinning again. (Because the diskstake a few seconds to regain full speed, you may notice aslight delay when you next access the hard-disk drive.)CAUTION: Check your monitor documentation tomake sure you have a DPMS-compliant monitorbefore you enable this feature. Otherwise, you riskdamaging the monitor.93816BK0.BK : 93816c20.frm Page 8 Monday, September 16, 1996 1:21 PM