HP Pavilion DV6-1378 User Manual

Hp pavilion dv6-1378: supplementary guide
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Power
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Summary of Contents for HP Pavilion DV6-1378

  • Page 1 Power User Guide...
  • Page 2 Company under license. The information contained herein is subject to change without notice. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty.
  • Page 3: Table Of Contents

    Table of contents 1 Power control and light locations 2 Power sources Connecting the AC adapter ... 4 3 Standby and hibernation Standby ... 5 Hibernation ... 6 Initiating standby, hibernation or shutdown ... 7 When you leave your work ... 7 When a reliable power supply is unavailable ...
  • Page 4 Resolving low-battery conditions ... 24 Calibrating a battery pack ... 25 When to calibrate ... 25 How to calibrate ... 25 Conserving battery power ... 28 Conserving power as you work ... 28 Selecting power conservation settings ... 28 Storing a battery pack ... 29 Disposing of a used battery pack ...
  • Page 5: Power Control And Light Locations

    Power control and light locations The following illustration and table identify and describe the power control and light locations. NOTE Your computer may look slightly different from the illustration in this section. Component Power button Power lights* (2) fn+f5 ENWW Description When the computer is ●...
  • Page 6 Component Battery light Internal display switch *The 2 power lights display the same information. The light on the power button is visible only when the computer is open. The light on the front of the computer is visible whether the computer is open or closed. Chapter 1 Power control and light locations Description Amber: A battery is charging.
  • Page 7: Power Sources

    Power sources The computer runs on internal or external AC power. The following table indicates the best power sources for common tasks. NOTE Use only the provided AC adapter or one approved for use with this computer. Task Work in most software programs. Charge or calibrate a battery in the computer.
  • Page 8: Connecting The Ac Adapter

    Connecting the AC adapter WARNING! Plug the power cord into an AC outlet that is easily accessible at all times. Disconnect power from the computer by unplugging the power cord from the AC outlet (not by unplugging the power cord from the computer). If provided with a 3-pin attachment plug on the power cord, plug the cord into a grounded (earthed) 3-pin outlet.
  • Page 9: Standby And Hibernation

    Standby and hibernation Standby and hibernation are energy-saving features that conserve power and reduce startup time. They can be initiated by you or by the system. Standby CAUTION To avoid a complete battery discharge, do not leave the computer in standby for extended periods.
  • Page 10: Hibernation

    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 dock the computer to or undock the computer from an optional expansion product. Do not add or remove memory modules.
  • Page 11: Initiating Standby, Hibernation Or Shutdown

    Initiating standby, hibernation or shutdown The following sections explain when to initiate standby or hibernation and when to shut down the computer. NOTE You cannot initiate any type of networking communications or perform any computer functions while the computer is in standby or hibernation. When you leave your work When standby is initiated, your work is stored in random access memory (RAM), and then the screen is cleared.
  • Page 12: When Using Wireless Communication, Or Readable Or Writable Media

    When using wireless communication, or readable or writable media CAUTION To prevent possible audio and video degradation, or loss of audio or video playback functionality, do not initiate standby or hibernation while reading or writing to a CD, a DVD, or an external media card.
  • Page 13: Power Settings

    Power settings This section explains standby, hibernation, and shutdown procedures. Turning the computer or display on or off Task Turn on the computer. Shut down the computer.* Turn off the display while the power is on. *If you have been registered to a network domain, the button you click will be called Shut Down instead of Turn Off Computer. ENWW Procedure Press the power button.
  • Page 14: Using Emergency Shutdown Procedures

    Using emergency shutdown procedures CAUTION Emergency shutdown procedures result in the loss of unsaved information. If the computer is unresponsive and you are unable to use normal Windows shutdown procedures, try the following emergency procedures in the sequence provided: ● Press ctrl+alt+delete.
  • Page 15: Initiating Or Resuming From Standby

    Initiating or resuming from standby Task Procedure ● Initiate standby. ● Allow the system to No action required. initiate standby. ● ● Resume from user- Press the power button. initiated or system- initiated standby. *If you have been registered to a network domain, the button you click will be called Shut Down instead of Turn Off Computer. ENWW With the computer on, press fn+f5.
  • Page 16: Initiating Or Restoring From Hibernation

    Initiating or restoring from hibernation Hibernation cannot be initiated unless it is enabled. Hibernation is enabled by default. To verify that hibernation remains enabled: Select Start > Control Panel > Performance and Maintenance > Power Options > Hibernate ▲ tab. If hibernation is enabled, the Enable hibernation check box is selected.
  • Page 17: Power Options

    Power options You can change many of the power settings using Windows Control Panel. For example, you can set an audio alert to warn you when the battery reaches a low-power condition, or you can change the factory settings for the power button. When the computer is on: ●...
  • Page 18: Displaying The Power Meter Icon

    Displaying the Power Meter icon By default, the Power Meter icon appears in the notification area, at the far right of the taskbar. The icon changes shape to indicate whether the computer is running on battery or external power. To remove the Power Meter icon from the notification area: Right-click the Power Meter icon in the notification area, and then click Adjust Power Properties.
  • Page 19: Setting Or Changing A Power Scheme

    Setting or changing a power scheme The Power Schemes tab in the Power Options Properties dialog box assigns power levels to system components. You can assign different schemes, depending on whether the computer is running on battery or external power. You can also set a power scheme that initiates standby or turns off the display or hard drive after a time interval that you specify.
  • Page 20 Chapter 5 Power options ENWW...
  • Page 21: Processor Performance Controls

    After a power scheme has been set, no other intervention is required to control the performance of the computer processor. The following table describes the processor performance on external and battery power for the available power schemes. Power scheme Home/Office Desk Portable/Laptop (default) * Presentation Always On Minimal Power Management Performance state is determined based on ENWW...
  • Page 22 Power scheme Max Battery * It is recommended that you use the Portable/Laptop power scheme. Chapter 6 Processor performance controls Processor performance while on external power Performance state is determined based on CPU demand. Processor performance while on battery power CPU performance is lower when the Max Battery setting is selected;...
  • Page 23: Batteries

    Batteries When a charged battery is in the computer and the computer is not plugged into external power, the computer runs on battery power. When the computer is plugged into external AC power, the computer runs on AC power. If the computer contains a charged battery and is running on external AC power supplied through the AC adapter, the computer switches to battery power if the AC adapter is disconnected from the computer.
  • Page 24: Inserting Or Removing A Battery

    Inserting or removing a battery CAUTION To prevent loss of information when removing a battery that is the sole power source, initiate hibernation or turn off the computer before removing the battery. NOTE Batteries vary in appearance by model. To insert a battery: Turn the computer upside down on a flat surface, with the battery bay toward you.
  • Page 25: Charging A Battery Pack

    Charging a battery pack To prolong battery life and optimize the accuracy of battery charge displays: WARNING! ● If you are charging a new battery pack: ● Charge the battery pack while the computer is plugged into external power through the AC adapter.
  • Page 26: Viewing Charge Displays

    Viewing charge displays To view information about the status of any battery pack in the computer: ● Double-click the Power Meter icon in the notification area, at the far right of the taskbar. – or – ● Select Start > Control Panel > Performance and Maintenance > Power Options > Power Meter tab.
  • Page 27: Managing Low-Battery Conditions

    Managing low-battery conditions The information in this section describes the alerts and system responses set at the factory. Some low- battery condition alerts and system responses can be changed using Power Options in Windows Control Panel. Preferences set using Power Options do not affect lights. Identifying low-battery conditions This section explains how to identify low-battery and critical low-battery conditions.
  • Page 28: Resolving Low-Battery Conditions

    Resolving low-battery conditions CAUTION To reduce the risk of losing information when the computer reaches a critical low- battery condition and has initiated hibernation, do not restore power until the power lights are turned off. When external power is available To resolve a low-battery condition when external power is available, connect one of the following: ●...
  • Page 29: Calibrating A Battery Pack

    Calibrating a battery pack When to calibrate Even if a battery pack is heavily used, it should not be necessary to calibrate it more than once a month. It is not necessary to calibrate a new battery pack. Calibrate a battery pack under the following conditions: ●...
  • Page 30: Step 2: Discharging The Battery Pack

    Step 2: Discharging the battery pack Before you begin a full discharge, disable hibernation. To disable hibernation: Select Start > Control Panel > Performance and Maintenance > Power Options > Hibernate tab. Clear the Enable hibernation check box. Click Apply. The computer must remain on while the battery pack is being discharged.
  • Page 31: Step 3: Recharging The Battery Pack

    Step 3: Recharging the battery pack To recharge the battery pack: Plug the computer into external power and maintain external power until the battery pack is fully recharged. When the battery pack is recharged, the battery light on the computer is turned off. You can use the computer while the battery pack is recharging, but the battery pack will charge faster if the computer is off.
  • Page 32: Conserving Battery Power

    Conserving battery power Using the battery conservation procedures and settings described in this section extends the time that a battery pack can run the computer from a single charge. Conserving power as you work To conserve power as you use the computer: ●...
  • Page 33: Storing A Battery Pack

    Storing a battery pack WARNING! computer, a replacement battery pack provided by HP, or a compatible battery pack purchased as an accessory from HP. CAUTION To prevent damage to a battery pack, do not expose it to high temperatures for extended periods of time.
  • Page 34 Chapter 7 Batteries ENWW...
  • Page 35: Index

    Index AC adapter 4 battery battery power vs. AC power 19 inserting 20 removing 20 using 19 battery charge information 21 battery light 2, 21, 23 battery pack calibrating 25 charging 21, 25 conserving power 28 disposing of 29 low-battery conditions 23 monitoring charge 21 recharging 27 storing 29...
  • Page 36 writable media 8 Index ENWW...

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