Compaq nc6140 Power

Compaq nc6140 - Notebook PC Manual

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  • Compaq nc6140 | Power - Page 1
    Power Document Part Number: 396324-001 December 2005 This guide explains how the computer uses power.
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    AC adapter 2-2 3 Standby and hibernation Standby 3-1 Hibernation 3-2 Initiating standby, hibernation or shutdown 3-4 When you leave your work 3-4 When a reliable power supply is unavailable 3-5 When using wireless communication, or readable or writable drive media 3-6 4 Default power settings
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    10 Resolving low-battery conditions 7-12 Calibrating a battery pack 7-14 When to calibrate 7-14 How to calibrate 7-14 Conserving battery power 7-19 Conserving power as you work 7-19 Selecting power conservation settings 7-20 Storing a battery pack 7-21 Disposing of a used battery pack 7-22
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    control and light locations The following illustration and table identify and describe the power control and light locations. Component 1 Display switch 2 Power lights* (2) Power Description Puts the computer in standby if the display is closed while the computer is on. Green: The computer is
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    responding and Microsoft® Windows® shutdown procedures cannot be used, press and hold the power button for at least 5 seconds to turn off the computer. 4 fn+f3 Initiates standby. 5 Battery light Amber: A battery pack is charging. Green: A battery pack is close to full charge capacity. Blinking
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    in the computer ■ External power supplied through one of the following devices: ❐ AC adapter ❐ Optional docking device ❐ Optional power adapter External power supplied through ■ AC adapter ■ Optional docking device ■ Optional power adapter Å Do not charge the computer battery pack on board aircraft
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    from the computer). ■ If provided with a 3-pin attachment plug on your power cord, plug the cord into a grounded (earthed) 3-pin outlet. Do not disable the power cord grounding pin; for example, by attaching a 2-pin adapter. The grounding pin is an important safety feature. It is possible to receive
  • Compaq nc6140 | Power - Page 8
    battery discharge, do not leave the computer in standby for extended periods. Connect the computer to an external power source. Standby reduces power to system components that are not in use. When standby is initiated, your work is stored in random access memory (RAM), and then the screen is
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    or remove memory modules. ■ Do not insert or remove hard drives or optical drives. ■ Do PC Card. 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
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    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
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    stored in random access memory (RAM), and then the screen is cleared. When the computer is in standby, it uses less power than when it is on. Your work returns instantly to the screen when your resume from standby. Hibernation saves your work to a hibernation file on the hard drive, and then shuts
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    is unavailable Be sure that hibernation remains enabled, especially if you are operating the computer on battery power and do not have access to an external power supply. If the battery pack fails, hibernation saves your work to a hibernation file and shuts down the computer. If you pause your
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    Standby and hibernation When using wireless communication, or readable or writable drive media Ä CAUTION: an external media card. Standby and hibernation interfere with the use of infrared, Bluetooth®, and wireless communication. Note the following guidelines: ■ If the and video playback. 3-6 Power
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    section explains the default standby, hibernation, and shutdown procedures. For information about changing the function of some of the power features on the computer, refer to "Power options." The controls and lights discussed in this chapter are illustrated in "Power control and light locations
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    ✎ If the system is unresponsive and you are unable to shut down the computer with these procedures, refer to "Using emergency shutdown procedures." Turn off the display while the power is on. Close the computer. Closing the computer activates the display switch, which initiates standby. *If the
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    to use normal Windows shutdown procedures, try the following emergency procedures in the sequence provided: ■ Press ctrl+alt+delete. Then, select Shut Down > Turn Off. ■ Press and hold the power button for at least 5 seconds. ■ Disconnect the computer from external power and remove the battery pack
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    If the computer is running on battery power, the system initiates standby after 10 Power settings and timeouts can be changed using Power Options in Windows Control Panel. ■ The power lights blink. ■ The screen clears. Resume from user-initiated standby. Press the power button. ■ The power
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    check box is selected. Task Initiate hibernation. Procedure Result ■ In Windows XP Home, select ■ The power lights Start > Turn Off Computer. are turned off. Then, hold down the shift ■ The screen clears. key as you select Hibernate. ■ In Windows XP Professional, select Start > Turn Off
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    reach a critical low-battery condition. Restore from user-initiated or system-initiated hibernation. ✎ Power settings and timeouts can be changed using Power Options in Windows Control Panel. Press the power button.† ■ The power lights are turned on. ■ Your work returns to the screen. *If you
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    settings in Windows Control Panel. For example, you can set an audio alert to warn you when the battery pack reaches a low-power condition, or you can change the default settings for the power button. By default, when the computer is on: ■ Pressing fn+f3, called the "sleep button" in the operating
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    . The icon changes shape to indicate whether the computer is running on battery or external power. To show the Power Meter icon in the notification area: 1. Select Start > Control Panel > Performance and Maintenance > Power Options. 2. Click the Advanced tab. 3. Select the Always show icon on the
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    , 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. To set a power scheme: 1. Right-click the Power Meter icon in the notification area, and
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    prevent overheating, do no obstruct vents. Use the computer only on a hard, flat surface. Do not allow another hard surface, such as a printer, or power than on battery power. If the battery power is extremely low, the computer may attempt to conserve power by reducing processor speed and graphics
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    CPU determined based on CPU demand. demand. Max Battery Performance state is determined based on CPU demand. CPU performance is lower when the Max Battery setting is selected; however, battery life will be extended. *It is recommended that you use the Portable/Laptop power scheme. 6-2 Power
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    When the computer is plugged into external AC power, the computer runs on AC power. If the computer contains a charged battery pack 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. You can
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    your work, refer to "Standby and hibernation." Å WARNING: To reduce potential safety issues, only the battery pack provided with the computer, a replacement battery pack provided by HP, or a compatible battery pack purchased as an accessory from HP should be used with the computer. 7-2 Power
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    pack that is the sole power source, initiate hibernation or turn off the computer before removing the battery pack. To insert a primary battery pack: 1. Turn the computer upside down on a flat surface, with the battery bay toward you. 2. Slide the battery pack 1 into the battery bay until it is
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    pack: 1. Turn the computer upside down on a flat surface, with the battery bay toward you. 2. Slide the right-hand battery pack release latch 1 to the right. 3. Slide and hold the left-hand battery pack release latch 2 to the right. 4. Slide the battery pack 3 out of the computer. 7-4 Power
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    be supplied through the following: ■ AC adapter ■ Optional docking device ■ Optional power adapter Å WARNING: To reduce potential safety issues, only the AC adapter provided with the computer, a replacement AC adapter provided by HP, or an AC adapter purchased as an accessory from HP should be used
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    pack while the computer is connected to external power through the AC adapter. ❏ When you charge the battery pack, charge it fully before turning on the computer. ■ If you are charging an in-use battery pack: ❏ Allow the battery pack to discharge to about 10 percent of a full charge through normal
  • Compaq nc6140 | Power - Page 31
    charges whenever the computer is connected to external power through an AC adapter, an optional expansion product, or an optional power adapter. A battery pack inserted in the computer charges whether the computer is off or in use, but the battery pack charges faster while the computer is off
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    instructions, refer to "Calibrating a battery pack." Displaying charge information on the screen This section explains how to access and interpret battery charge indicators. Viewing charge displays To view information about the status of any battery pack in the computer: ■ Double-click the Power
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    to provide power at the current level. For example, the time remaining will decrease when you start playing a DVD and will increase when you stop playing a DVD. ■ When a battery pack is charging, a lightning bolt icon may be superimposed over the battery icon on the Power Meter screen. Power 7-9
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    can be changed using Power Options in Windows Control Panel. Preferences set in the Power Options window do not affect lights. Identifying low-battery conditions This section explains how to identify low-battery and critical low-battery conditions. Low-battery condition When a battery pack that is
  • Compaq nc6140 | Power - Page 35
    computer enters a critical low-battery condition, and the amber-colored battery light blinks more rapidly. In a critical low-battery condition: ■ If hibernation is > Control Panel > Performance and Maintenance > Power Options > Hibernate tab. 2. Be sure the Enable hibernation check box is selected
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    , 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: ■ AC adapter ■ Optional docking device ■ Optional power adapter When a charged battery pack is available
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    - ■ Save your work and shut down the computer. When the computer cannot restore from hibernation To resolve a low-battery condition when the computer lacks the power to restore from hibernation: 1. Insert a charged battery pack or connect external power. 2. Restore from hibernation by pressing the
  • Compaq nc6140 | Power - Page 38
    month. It is not necessary to calibrate a new battery pack before first use. Calibrate the battery pack under the following conditions: ■ When battery charge displays seem inaccurate ■ When you observe a significant change in battery run time ■ When the battery pack has been unused for one month or
  • Compaq nc6140 | Power - Page 39
    aircraft electronic systems. To charge the battery pack: 1. Insert the battery pack into the computer. 2. Connect the computer to an AC outlet, optional power adapter, or optional expansion product, and then plug the adapter or device into external power. The battery light on the computer is turned
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    Control Panel > Performance and Maintenance > Power Options > Hibernate tab. 2. Clear the Enable hibernation box. 3. Click Apply. The computer must remain on while the battery pack is being discharged. The battery pack can discharge whether or not you are using the computer but will discharge faster
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    off the computer. 6. Run the computer on battery power until the battery pack is fully discharged. The battery light begins to blink in an amber color when the battery pack has discharged to a low-battery condition. When the battery pack is fully discharged, the battery light is turned off and the
  • Compaq nc6140 | Power - Page 42
    pack To recharge the battery pack: 1. 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
  • Compaq nc6140 | Power - Page 43
    and fn+f10 hotkeys to adjust screen brightness as you need it. ■ Use optional powered speakers instead of the internal speakers, or adjust system volume as you need it. ■ Turn off a device connected to the S-Video-out jack by using the fn+f4 hotkey or by turning off support for the device in Windows
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    ■ Select a short wait for the screen saver and select a screen saver with minimal graphics and motion. To access screen saver settings: Select Start > Control Panel > Appearance and Themes > Choose a screen saver. ■ Select a Power Scheme with low-power-use settings through the operating system. For
  • Compaq nc6140 | Power - Page 45
    . If a computer will be unused and disconnected from external power for more than 2 weeks, remove the battery pack and store it separately. To prolong the charge of a stored battery pack, place it in a cool, dry place. Calibrate a battery pack before using it if it has been stored for one month or
  • Compaq nc6140 | Power - Page 46
    packs Disposing of a used battery pack Å WARNING: To reduce the risk of fire or burns, do not disassemble, crush, or puncture a battery pack; short the external contacts on a battery pack; or dispose of a battery pack in fire or water. Do not expose a battery pack to temperatures above 60°C (140
  • Compaq nc6140 | Power - Page 47
    7-21 using 7-1 battery pack release latch 7-4 button, power 1-2 C calibration, battery 7-14 charging battery packs 7-5 computer display, turning on or off 4-2 conservation, power 7-19 critical low-battery condition 7-11 D default power settings 4-1 display switch, identifying 1-1 drive media
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    1-1 low-battery condition 7-10 O operating system 4-2 optional power adapter 2-1, 7-15 P passwords, security 5-3 power conserving 7-19 control and light locations 1-1 schemes 5-3 setting preferences 5-1 sources 2-1 power button 1-2 power light 1-1 Power Meter icon 5-2 power settings 4-1 power supply
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    trademarks of Microsoft Corporation. Bluetooth is a trademark owned by its proprietor and used by Hewlett-Packard Company services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein. Power
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Power
Document Part Number: 396324-001
December 2005
This guide explains how the computer uses power.