Dell OptiPlex 760, Service Manual

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Hibernate mode conserves power by copying system data to a reserved area on the hard drive, and then completely turning off the computer. When the
computer exits from hibernate mode, the desktop is restored to the state it was in prior to entering hibernate mode.
To activate hibernate mode:
1. Click Start ® Control Panel ® Pick a category ® Performance and Maintenance .
2. Under or pick a Control Panel icon , click Power Options .
3. Define your hibernate settings on the Power Schemes tab, Advanced tab, and Hibernate tab.
To exit from hibernate mode , press the power button. The computer may take a short time to exit from hibernate mode. Because the keyboard and mouse do
not function in hibernate mode, pressing a key on the keyboard or moving the mouse does not bring the computer out of hibernation.
Because hibernate mode requires a special file on your hard drive with enough disk space to store the contents of the computer memory, Dell creates an
appropriately sized hibernate mode file before shipping the computer to you. If the computer's hard drive becomes corrupted, Windows XP recreates the
hibernate file automatically.
Power Options Properties
Define your standby mode settings, hibernate mode settings, and other power settings in the Power Options Properties window. To access the Power
Options Properties window:
1. Click Start ® Control Panel ® Pick a category ® Performance and Maintenance .
2. Under or pick a Control Panel icon , click Power Options .
3. Define your power settings on the Power Schemes tab, Advanced tab, and Hibernate tab as described in the following sections.
Power Schemes Tab
Each standard power setting is called a scheme. If you want to select one of the standard Windows schemes installed on your computer, choose a scheme
from the
Power schemes drop-down menu. The settings for each scheme appear in the fields below the scheme name. Each scheme has different settings for
starting standby mode, hibernate mode, turning off the monitor, and turning off the hard drive.
The Power schemes drop-down menu displays the following schemes:
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Always On (default) — If you want to use your computer with no power conservation.
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Home/Office Desk — If you want your home or office computer to run with little power conservation.
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Portable/Laptop — If your computer is a portable computer that you use for traveling.
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Presentation — If you want your computer to run without interruption (using no power conservation).
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Minimal Power Management — If you want your computer to run with minimal power conservation.
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Max Battery — If your computer is a portable computer and you run your computer from batteries for extended periods of time.
If you want to change the default settings for a scheme, click the drop-down menu in the Turn off monitor , Turn off hard disks , System stand by , or System
hibernates field, and then select a time-out from the displayed list. Changing the time-out for a scheme field permanently changes the default settings for that
scheme, unless you click Save As and enter a new name for the changed scheme.
Advanced Tab
The Advanced tab allows you to:
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Place the power options icon in the Windows task bar for quick access.
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Set the computer to prompt you for your Windows password before the computer exits from standby mode or hibernate mode.
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Program the power button to activate standby mode, activate hibernate mode, or turn off the computer.
To program these functions, click an option from the corresponding drop-down menu and click OK .
Hibernate Tab
The Hibernate tab allows you to enable hibernate mode. If you want to use the hibernate settings as defined on the Power Schemes tab, click the Enable
hibernate support check box on the Hibernate tab.
CAUTION: If you set the hard drive to time-out before the monitor does, your computer may appear to be locked up. To recover, press any key on
the keyboard or click the mouse. To avoid this problem, always set the monitor to time-out before the hard drive.