HP Power Management manual Hibernation

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Hibernation

CAUTION: If the configuration of the computer is changed during hibernation, resuming from hibernation may not be possible. When the computer is in hibernation:

Do not connect the computer to or disconnect the computer from an optional docking device or expansion product.

Do not add or remove memory modules.

Do not insert or remove any hard drives or optical drives.

Do not connect or disconnect external devices.

Do not insert or remove external media cards.

Hibernation saves your work to a hibernation file on the hard drive, and then shuts down the computer. The power lights are turned off. When you restore from hibernation, your work returns to the screen where you left off. If a power-on password has been set, the password must be entered to restore from hibernation.

CAUTION: To reduce the risk of information loss, save your work before initiating hibernation.

You can disable hibernation. However, if hibernation is disabled and the system reaches a low-battery condition, the system will not automatically save your work while power is on or when standby has been initiated.

Use Power Options in Microsoft® Windows® Control Panel to reenable hibernation:

▲Select Start > Control Panel > Performance and Maintenance > Power Options > Hibernate tab.

Be sure that the Enable hibernation check box is selected.

You can set the period of time that the system remains idle before it initiates hibernation:

1.Select Start > Control Panel > Performance and Maintenance > Power Options.

2.Click one of the intervals in the System hibernates list.

6 Chapter 3 Standby and hibernation

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Contents Power Management First Edition January Document Part Number Table of contents Index Power control and light locations Component DescriptionPower control and light locations Power sources Task Recommended power sourceConnecting the AC adapter Standby and hibernation StandbyHibernation When a reliable power supply is unavailable When you leave your workInitiating standby, hibernation or shutdown Page Using emergency shutdown procedures Power settingsTurning the computer or display on or off Initiating or resuming from standby Stand byInitiating or restoring from hibernation Select HibernatePower options Accessing Power Options PropertiesDisplaying the Power Meter icon Clear the Always show icon on the taskbar check boxSetting or changing a power scheme Setting a security prompt Power Processor performance controlsBatteries Inserting or removing a battery Obtaining accurate charge information Charging a batteryMonitoring the charge of the battery Displaying charge information on the screenViewing charge displays Low-battery condition Managing low-battery conditionsIdentifying low-battery conditions Critical low-battery conditionWhen a charged battery is available Resolving low-battery conditionsWhen external power is available When no power source is availableHow to calibrate Calibrating a batteryWhen to calibrate Charging the batteryDischarging the battery Recharging the battery Conserving power as you work Conserving battery powerSelecting power conservation settings Storing a battery Disposing of a used battery Index AC adapter
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