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Toshiba Tecra A9 User Manual - Page 106

Charging the RTC battery, display the incorrect time and date, or stop working. - bios

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106 Mobile Computing Charging batteries Charging the RTC battery Your computer has an internal real-time clock (RTC) battery. The RTC battery powers the System Time Clock and BIOS memory used to store your computer's configuration settings. When fully charged, it maintains this information for up to a month when the computer is powered off. The RTC battery may have become completely discharged while your computer was shipped, resulting in the following error message during startup: BAD RTC BATTERY BAD CHECKSUM (CMOS) CHECK SYSTEM NOTE The above error message may vary by computer model. The RTC battery does not charge while the computer is turned off even when the AC adaptor is charging the computer. The RTC battery charges when the computer is powered on. If the RTC battery is low, the real-time clock and calendar may display the incorrect time and date, or stop working. To recharge the RTC battery, plug the computer into a live electrical outlet and leave the computer powered on for 24 hours. NOTE It is seldom necessary to charge the RTC battery because it charges while the computer is on. If the RTC battery is low, the real-time clock and calendar may display the incorrect time and date or stop working. When Hibernation mode is enabled and the RTC battery is completely discharged, a warning prompts you to reset the real-time clock. The computer can be used while the RTC battery is being charged, although the charging status of the RTC battery cannot be monitored.

Section	Page
Introduction	36
This guide	37
Safety icons	38
Other icons used	38
Other documentation	39
Service options	39
Getting Started	40
Selecting a place to work	40
Creating a computer-friendly environment	40
Keeping yourself comfortable	41
Precautions	41
Important information on your computer’s cooling fan	42
Setting up your computer	43
Setting up your software	43
Registering your computer with Toshiba	44
Adding optional external devices	44
Connecting to a power source	45
Charging the main battery	47
Using the computer for the first time	48
Opening the display panel	48
Your computer’s features and specifications	49
Turning on the power	49
Adding memory (optional)	50
Installing a memory module	51
Removing a memory module	56
Hard Drive Recovery Utilities	58
Creating Recovery CDs/DVDs	59
Hard Disk Drive Recovery Options	60
Installing drivers and applications	66
Using the Toshiba Dual Pointing Device	67
Using the TouchPad™	67
Disabling or enabling the TouchPad™	68
Using external display devices	68
Directing the display output when you turn on the computer	69
Adjusting the quality of the external display	70
Using an external keyboard	70
Using a mouse	70
Connecting a printer	71
Setting up a printer	71
Connecting an optional external diskette drive	72
Turning off the computer	73
Options for turning off the computer	73
Using the Shut Down command	75
Using and configuring Hibernation mode	78
Using and configuring Sleep mode	80
Closing the display panel	83
Customizing your computer’s settings	83
Caring for your computer	83
Cleaning the computer	83
Moving the computer	83
Using a computer lock	84
Learning the Basics	85
Computing tips	85
Using the keyboard	86
Character keys	86
Making your keyboard emulate a full-size keyboard	87
Ctrl, Fn, and Alt keys	87
Function keys	87
Special Windows® keys	88
Overlay keys	88
Using the overlay to type numeric data	89
Starting a program	89
Starting a program from the Start menu	89
Starting a program from Windows® Explorer	90
Starting a program using the Start Search field	91
Saving your work	92
Printing your work	93
Backing up your work	94
Restoring your work	95
Using the optical drive	95
Optical drive components	96
Inserting a compact disc	96
Playing an audio CD	98
Playing optical media	99
Creating a CD/DVD	99
Removing a disc with the computer on	100
Removing a disc with the computer off	100
Caring for CD or DVD Discs	101
Toshiba’s online resources	101
Mobile Computing	102
Toshiba’s energy-saver design	102
Running the computer on battery power	103
Battery Notice	103
Power management	104
Using additional batteries	104
Charging batteries	105
Charging the main battery	105
Charging the RTC battery	106
Monitoring main battery power	107
Determining remaining battery power	108
What to do when the main battery runs low	109
Setting battery notifications	109
Conserving battery power	110
Power Plans	111
Using a hot key to set the Power Plan	112
Changing the main battery	113
Removing the battery from the computer	113
Inserting a charged battery	115
Taking care of your battery	116
Safety precautions	116
Maintaining your battery	117
Disposing of used batteries	117
Traveling tips	119
Exploring Your Computer’s Features	120
Exploring the desktop	120
Finding your way around the desktop	121
Setting up for communications	123
Connecting a modem to a telephone line	124
Connecting your computer to a network	125
An overview of using the Internet	127
The Internet	127
The World Wide Web	128
Internet Service Providers	128
Connecting to the Internet	128
Surfing the Internet	129
Internet features	129
Uploading to, and downloading files from, the Internet	129
Exploring audio features	130
Recording sounds	130
Using external speakers or headphones	131
Using PC Cards	131
Inserting a PC Card	132
Removing a PC Card	132
Setting up a PC Card for your computer	133
Using the Bridge Media Slot	133
Inserting memory media	133
Removing memory media	134
Using the i.LINK® port	135
Using an expansion device	135
Using an Optional Toshiba Express Port Replicator with your computer	135
Toshiba Utilities	136
TOSHIBA Assist	137
Connect	138
Secure	139
Protect & Fix	140
Optimize	141
TOSHIBA Application Installer	142
Setting passwords	143
Using an instant password	143
Setting a user password	144
Disabling a user password	144
Using a user password	144
Deleting a user password	146
TOSHIBA PC Diagnostic Tool Utility	147
TOSHIBA HDD Protection Utility	148
TOSHIBA SD™ Memory Card Format Utility	149
TOSHIBA SD™ Memory Boot Utility	150
Booting from a bootable SD card	151
Mouse Utility	152
Toshiba Hardware Setup	153
TOSHIBA Zooming Utility	155
TOSHIBA Button Support	156
CD/DVD Drive Acoustic Silencer	157
TOSHIBA Accessibility	158
Trusted Platform Module (TPM)	159
Fingerprint Authentication Utility	160
Fingerprint utility limitations	160
Fingerprint Enrollment	160
Fingerprint Logon	162
Power-on Security	162
Control Center	163
Password Bank	165
Care and maintenance of your fingerprint reader	168
Fingerprint reader limitations	170
ConfigFree™	170
Getting Started	171
ConfigFree Utilities	171
If Something Goes Wrong	174
Problems that are easy to fix	174
Problems when you turn on the computer	176
The Windows ® operating system is not working	178
Using Startup options to fix problems	179
Internet problems	180
The Windows® operating system can help you	180
Resolving a hardware conflict	181
A plan of action	181
Resolving hardware conflicts on your own	181
Fixing a problem with Device Manager	183
Memory problems	184
Power and the batteries	184
Keyboard problems	186
Display problems	186
Disk drive problems	188
Optical drive problems	190
Sound system problems	191
PC Card problems	191
Printer problems	193
Modem problems	194
Wireless networking problems	195
DVD operating problems	197
Develop good computing habits	198
Data and system configuration backup in Windows®	199
If you need further assistance	203
Before you contact Toshiba	203
Contacting Toshiba	204
Other Toshiba Internet Web sites	205
Toshiba’s worldwide offices	205
Hot Keys/TOSHIBA Cards	207
Hot Key Cards	207
Using the Hot Key Cards	208
Application Cards	209
Using the Application Cards	210
Card Case	210
Hot Key Functions	211
Volume Mute	212
Password security	213
Power plan	214
Sleep mode	215
Hibernation mode	216
Display modes	217
Display brightness	218
Disabling or enabling wireless devices	219
Disabling or enabling the Dual Pointing Device	220
Changing screen resolution	221
Keyboard hot key functions	222
Power Cord/Cable Connectors	223
USA and Canada	223
United Kingdom	223
Australia	223
Europe	223
Glossary	224