Dell Precision M20 User Manual

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Contents

Dell Precision M20 User Manual Manual pdf 69 page image

Selecting a Power SchemeThe screen allows you to select, create, and edit power scheme settings. In addition, you can delete power schemes that you create, but you cannot deleteDell™ QuickSet predefined power schemes (Maximum Battery, Maximum Performance, Presentation, and Network Disabled).All QuickSet power schemes are displayed in a drop-down menu near the center of the screen. The power settings for each scheme in the menu are listedbelow the menu. The power settings are listed separately for when the computer is running on battery or connected to an electrical outlet.The Power Management Wizard also allows you to associate the display brightness level with a power scheme. You must enable brightness-level powerschemes through QuickSet in order to set the brightness level.The display brightness, internal network-card activity, and wireless activity features are not available through the Control Panel power schemes. In order tomake use of these value-added features, you must set them through QuickSet power schemes.Setting Battery Alarms and ActionsThe screen allows you to enable the low-battery and critical-battery alarms and to change settings for the alarms. For example, you can set the low-batteryalarm to 20 percent to remind you to save work and switch to AC power, and you can set the critical-battery alarm to 10 percent to enter hibernate mode.From the screen, you can:l Select whether the alarm will notify you by sound or text.l Adjust the power level at which you want the alarm to notify you.l Select how the computer will respond when the alarm notifies you:¡ Choose no action.¡ Enter standby mode.¡ Enter hibernate mode.¡ Shut down Windows and turn off the computer.Completing the Power Management WizardThe screen summarizes the QuickSet power scheme, sleep mode, and battery alarm settings for your computer. Review the settings you have selected andclick Finish.For more information about QuickSet, right-click the icon in the taskbar and click Help.Power Management ModesStandby ModeStandby mode conserves power by turning off the display and the hard drive after a predetermined period of inactivity (a time-out). When the computer exitsstandby mode, it returns to the same operating state it was in before entering standby mode.To enter standby mode:l In the Microsoft® Windows® XP operating system, click the Start button, click Turn off computer, and then click Stand by.In Windows 2000, click the Start button, click Shutdown, click Standby, and then click OK.orl Depending on how you set the power management options on the Advanced tab in the Power Options Properties window, use one of the followingmethods:¡ Press the power button.¡ Close the display.NOTE: When your computer is running on battery power, the Network Disabled power scheme disables your internal network and wireless activity.When your computer is connected to an electrical outlet or docking device, the Network Disabled power scheme disables only your wireless activity. Youmust set the power scheme through QuickSet (not Microsoft® Windows®) for the Network Disabled power scheme to work.NOTE: QuickSet automatically adds the word (QuickSet) after the names of power schemes created using QuickSet.NOTE: Brightness shortcut keys only affect the display on your portable computer, not monitors that you attach to your portable computer or dockingdevice. If your computer is in CRT only mode and you try to change the brightness level, the Brightness Meter appears, but the brightness level on themonitor does not change.NOTICE: If your computer loses AC and battery power while in standby mode, it may lose data.