HP dv4-2160us Manuel d'utilisateur Page 100
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Resolving a low battery level
CAUTION: To reduce the risk of losing information when the computer reaches a critical battery level
and has initiated Hibernation, do not restore power until the power lights turn off.
Resolving a low battery level when external power is available
▲
Connect one of the following devices:
●
AC adapter
●
Optional expansion product or docking device
●
Optional power adapter
Resolving a low battery level when a charged battery is available
1. Turn off the computer or initiate Hibernation.
2. Remove the discharged battery, and then insert a charged battery.
3. Turn on the computer.
Resolving a low battery level when no power source is available
▲
Initiate Hibernation.
– or –
Save your work and shut down the computer.
Resolving a low battery level when the computer cannot exit Hibernation
When the computer lacks sufficient power to exit Hibernation, follow these steps:
1. Insert a charged battery or plug the computer into external power.
2. Exit Hibernation by pressing the power button.
88 Chapter 8 Power management
- Notebook PC User Guide 1
- Safety warning notice 3
- Table of contents 5
- Starting HP QuickWeb 14
- 2 Features 15
- Components 16
- Components 5 17
- 6 Chapter 2 Features 18
- Components 7 19
- 8 Chapter 2 Features 20
- Components 9 21
- Front components 22
- Rear component 22
- Right-side components 23
- Left-side components 24
- Bottom components 25
- Wireless antennas 26
- Components 15 27
- Using wireless devices 29
- Using the wireless controls 30
- Using the wireless button 31
- Using HP Wireless Assistant 31
- Using a WLAN 33
- Protecting your WLAN 34
- Connecting to a WLAN 35
- Roaming to another network 35
- Inserting a SIM 37
- Removing a SIM 38
- Cannot connect to a WLAN 40
- Network icon is not displayed 41
- WLAN connection is very weak 42
- Connecting a modem cable 43
- Selecting a location setting 44
- Using the TouchPad 48
- Setting TouchPad preferences 49
- Connecting an external mouse 49
- Using keyboard hotkeys 50
- Opening Help and Support 51
- Opening a Web browser 52
- Switching the screen image 52
- Decreasing screen brightness 53
- Increasing screen brightness 53
- Initiating Sleep 53
- Initiating QuickLock 53
- Stopping an audio CD or a DVD 54
- Using keypads 55
- 5 Multimedia 58
- Multimedia features 47 59
- Adjusting the volume 61
- Multimedia software 63
- Checking your audio functions 64
- Connecting an HDMI device 66
- Configuring audio for HDMI 67
- Troubleshooting 70
- A disc does not play 72
- Models Only) 76
- Button quick reference 77
- Button quick reference 67 79
- Button quick reference 73 85
- 8 Power management 89
- Using the battery meter 90
- Using power plans 91
- Using external AC power 93
- Connecting the AC adapter 94
- Testing an AC adapter 95
- Using battery power 96
- Charging a battery 98
- Managing low battery levels 99
- Resolving a low battery level 100
- Calibrating a battery 101
- Step 3: Discharge the battery 102
- Conserving battery power 103
- Storing a battery 103
- Disposing of a used battery 103
- Replacing the battery 103
- Shutting down the computer 104
- Handling drives 105
- Optical drive 106
- Using optical discs 107
- Selecting the right disc 108
- Playing a CD, DVD, or BD 109
- Configuring AutoPlay 110
- Changing DVD region settings 110
- Copying a CD or DVD 111
- Using external drives 114
- Using Disk Defragmenter 115
- Using Disk Cleanup 115
- Replacing the hard drive 118
- To install a hard drive: 119
- Replacing the hard drive 107 119
- 5. Close the cover (2) 120
- 108 Chapter 9 Drives 120
- Replacing the hard drive 109 121
- 10 External devices 124
- Removing a USB device 125
- Using an eSATA device 126
- Using the expansion port 127
- 11 External media cards 128
- Removing a digital card 129
- Using ExpressCards 130
- Removing an ExpressCard 132
- 12 Memory modules 133
- 16. Turn on the computer 136
- 13 Security 137
- Using passwords 138
- Administrator password 139
- Power-on password 140
- Using antivirus software 141
- Using firewall software 141
- Registering fingerprints 144
- A Setup Utility (BIOS) 146
- Using Setup Utility 147
- Displaying system information 148
- Setup Utility menus 149
- System Configuration menu 150
- Diagnostics menu 150
- B Software updates 151
- Updating the BIOS 152
- Downloading a BIOS update 153
- Updating programs and drivers 154
- C Backup and recovery 155
- Creating recovery discs 156
- Backing up your information 157
- Using system restore points 159
- Performing a recovery 160
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