HP ZBook 15 Mobile manual Power management, Shutting down the computer, Setting power options

Page 39

6 Power management

Shutting down the computer

CAUTION: Unsaved information will be lost when the computer is shut down.

The shutdown command closes all open programs, including the operating system, and then turns off the display and computer.

Shut down the computer under any of the following conditions:

●When you need to replace the battery or access components inside the computer

●When you are connecting an external hardware device that does not connect to a USB port

●When the computer will be unused and disconnected from external power for an extended period

To shut down the computer, follow these steps:

NOTE: If the computer is in the Suspend state or in Hibernation, you must first exit Suspend or Hibernation before shutdown is possible.

1.Save your work and close all open programs.

2.Select Computer > Shutdown > Shut Down.

If the computer is unresponsive and you are unable to use the preceding shutdown procedure, try the following emergency procedures in the sequence provided until shutdown occurs:

●Press and hold the power button for at least 5 seconds.

●Disconnect the computer from external power, and then remove the battery.

Setting power options

Using power-saving states

The computer has two power-saving states enabled at the factory: Suspend and Hibernation.

When Suspend is initiated, the power lights blink and the screen clears. Your work is saved to memory, letting you exit the Suspend state faster than exiting Hibernation. If the computer is in the Suspend state for an extended period or if the battery reaches a critical battery level while in the Suspend state, the computer initiates Hibernation.

When Hibernation is initiated, your work is saved to a hibernation file on the hard drive and the computer turns off.

CAUTION: To prevent possible audio and video degradation, loss of audio or video playback functionality, or loss of information, do not initiate Suspend or Hibernation while reading from or writing to a disc or an external media card.

NOTE: You cannot initiate any type of networking connection or perform any computer functions while the computer is in the Suspend state or in Hibernation.

Shutting down the computer 29

Image 39

Contents HP Notebook Product notice Safety warning notice Iv Safety warning notice Table of contents VGA Vii Security Input power Operating environment Page Welcome Resources For information about Finding informationGetting to know your computer TopTouchPad Lights Select Computer Control Center Buttons and fingerprint reader select models onlyFn key KeysFront Environmental Notices RightLeft See Using a USB device onRear Display Bottom Bottom Turning wireless devices on and off Using an Internet service provider ISPIdentifying wireless and network status icons Creating a wireless connectionUsing the operating system controls Using a WlanConnecting to an existing Wlan Setting up a new WlanProtecting your Wlan Roaming to another network Using Bluetooth wireless devices select models onlyConnecting to a wired network Connecting to a local area network LAN select models onlyPage Using the keyboard Keyboard and pointing devicesIdentifying the hot keys Using an optional external numeric keypad Using the TouchPadUsing keypads Using the integrated numeric keypadUsing TouchPad gestures NavigatingSelecting Scrolling TappingRotating select models only Pinching/ZoomingUsing the pointing stick Setting pointing device preferencesUsing the audio features Adjusting the volumeMultimedia Using the webcam select models only Using video devicesChecking your audio functions Select Configure Display Settings Click Detect Monitors DisplayPort Shutting down the computer Power managementSetting power options Using power-saving statesInitiating and exiting Hibernation Using the Power iconUsing power management Initiating and exiting SuspendViewing the current power management settings Using battery powerDisplaying the remaining battery charge Inserting or removing the batteryCharging a battery Maximizing battery life Managing low battery levelsIdentifying low battery levels Conserving battery power Storing a batteryResolving a low battery level Testing an AC adapter Using external AC powerDisposing of a used battery Replacing the batteryPage Removing or replacing the service cover DrivesHandling drives Replacing the service cover Removing the service coverRemoving the hard drive Replacing or upgrading the hard drivePage Installing a hard drive Removing a memory card Using memory cardsExternal cards and devices Inserting a memory cardUsing smart cards select models only Using ExpressCards select models only Inserting a smart cardRemoving a smart card Inserting an ExpressCard Configuring an ExpressCardRemoving an ExpressCard Using a USB deviceConnecting a USB device Using optional external devicesUsing optional external drives Using the docking connectorMemory modules Page Page Using passwords SecurityProtecting the computer Setting passwords in the operating system Setting passwords in Computer SetupManaging a Bios administrator password Entering a DriveLock password Using a Computer Setup DriveLock passwordEntering a Bios administrator password Managing a DriveLock passwordUsing Computer Setup Automatic DriveLock Using firewall softwareManaging an Automatic DriveLock password Installing an optional security cable Using the fingerprint reader select models onlyEnabling fingerprint authentication during logon Select the Use Fingerprint Reader option Enrolling your fingerprintBacking up your information Backup and RecoveryCreating backups Creating restore mediaPerforming a system recovery Remove everything and reinstall Sled Navigating and selecting in Computer Setup Computer Setup Bios and Advanced System DiagnosticsStarting Computer Setup Using Computer SetupUpdating the Bios Restoring factory settings in Computer SetupDetermining the Bios version Downloading a Bios update Using Advanced System Diagnostics About the boot device order MultiBootConsidering boot order changes Enabling boot devices in Computer SetupSetting a new boot order in Computer Setup Choosing MultiBoot preferencesDynamically choosing a boot device using the f9 prompt Setting a MultiBoot Express promptEntering MultiBoot Express preferences Troubleshooting Troubleshooting and supportWireless network connection is not working Computer is unusually warmAn external device is not working Computer does not detect the optical drive Disc does not playMovie is not visible on an external display Contacting support Labels Serial number Product number Cleaning the display Cleaning your computerCleaning products Cleaning proceduresCleaning the TouchPad, keyboard, or mouse Specifications Input powerOperating environment Electrostatic discharge