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Toshiba Portege R930-Landis-PT331U-0KN0D7G1 User Guide 2 - Page 88

Charging the RTC battery, Monitoring main battery power

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88 Mobile Computing Monitoring main battery power 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 a CMOS error message during startup. The error message may vary by computer model. NOTE Depending on your system, the RTC battery may only charge while the computer is turned on. 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. Monitoring main battery power The computer's main battery light gives you an indication of the main battery's current charge. ❖ Glows amber while the main battery is being charged (AC adaptor connected) ❖ Glows green when the main battery is fully charged NOTE Battery life and charge time may vary, depending upon power management settings, applications and features used. ❖ Flashes amber when the main battery charge is low and it is time to recharge the main battery or plug in the AC adaptor

Section	Page
Portégé® R930 Series User’s Guide	1
Contents	19
Introduction	26
This guide	28
Safety icons	29
Other icons used	29
Your computer’s features and specifications	30
Other documentation	30
Service options	30
Chapter 1: Getting Started	31
Selecting a place to work	31
Setting up a work environment	31
Keeping yourself comfortable	32
Computer user comfort recommendations	32
Good Working Posture	32
Using the notebook with an external keyboard, mouse or monitor	33
Typing style	34
Taking breaks and varying tasks	34
Mobile computing tips	35
Transporting the notebook	35
Seeking additional help	35
Check list	36
Precautions	36
Important information on your computer’s cooling fan	38
Setting up your computer	39
Connecting to a power source	39
Charging the main battery	42
Using the computer for the first time	42
Initial setup	43
Setting up your software	43
Registering your computer with Toshiba	43
To Shut down your computer	44
To Restart your computer	44
To place your computer in Sleep mode	45
Adding optional external devices	46
Adding memory (optional)	46
Installing a memory module	46
Removing a memory module	52
Checking total memory	54
Recovering the Internal Storage Drive	55
Creating recovery media	56
Restoring from recovery media	58
Refresh your PC (with user’s data)	59
Reset your PC	61
Installing drivers and applications	64
Using the touch pad	65
Adjusting touch pad settings	67
Disabling or enabling the touch pad	68
Scrolling with the touch pad	68
Control buttons	68
Connecting an external device	69
Using external display devices	69
Selecting video cables	69
Connecting an HDMI™-compatible television or display device	70
Connecting an external monitor or projector	70
Directing the display output when you turn on the computer	70
Adjusting the quality of the external display	72
Customizing your computer’s settings	72
Caring for your computer	72
Cleaning the computer	72
Moving the computer	73
Using a computer lock	73
Chapter 2: Learning the Basics	74
Computing tips	74
Using the keyboard	75
Ctrl, Fn, and Alt keys	76
Function keys	76
Special Windows® keys	76
Mouse properties	77
Starting an app	77
Starting an app from the Start screen	77
Saving your work	78
Backing up your work	78
Using the optical disc drive	79
Optical disc drive components	79
Inserting an optical disc	80
Playing optical media	81
Recording optical media	81
Removing a disc with the computer on	82
Removing a disc with the computer off	82
Toshiba’s online resources	83
Chapter 3: Mobile Computing	84
Toshiba’s energy-saver design	84
Running the computer on battery power	85
Battery Notice	85
Power management	86
Using additional batteries	86
Charging the main battery	87
Charging the RTC battery	88
Monitoring main battery power	88
Determining remaining battery power	89
What to do when the main battery runs low	90
Setting battery notifications	90
Conserving battery power	91
Power Plans	92
Using a TOSHIBA Function key to set the Power Plan	93
Using the eco power plan	94
Changing the main battery	94
Removing the battery from the computer	95
Inserting a charged battery	96
Taking care of your battery	97
Safety precautions	97
Maintaining your battery	98
Disposing of used batteries	98
Traveling tips	99
Chapter 4: Exploring Your Computer’s Features	101
Exploring the Start screen	101
Charms	102
Tiles	103
Exploring the desktop	103
Finding your way around the desktop	103
Windows® Store	105
Setting up for communications	105
Connecting your computer to a network	106
Exploring audio features	106
Recording sounds	107
Using external speakers or headphones	107
Using the Web Camera	108
Using an ExpressCard®	109
Inserting an ExpressCard®	109
Removing an ExpressCard®	109
Using the Memory card reader	110
Inserting memory media	111
Removing memory media	111
Using the eSATA/USB combo port	112
Using the expansion port	113
Chapter 5: Utilities	114
Desktop Assist	115
Media & Entertainment	116
Tools & Utilities	117
Support & Recovery	118
eco Utility®	119
Setting passwords	120
Using a supervisor password	120
Using a user password	122
System Settings	123
Sleep and Charge	125
USB Sleep and Charge	125
Enabling/Disabling USB Sleep and Charge	127
Power supply mode settings	127
HDD Protection Utility	128
Function Key	129
Cooling Performance Diagnostic Tool	130
PC Diagnostic Tool	131
PC Health Monitor	132
Recovery Media Creator	133
Service Station	133
TOSHIBA Application Installer	134
TOSHIBA Button Setting	135
Trusted Platform Module (TPM)	136
Fingerprint Utility	137
Fingerprint utility limitations	137
Using the Fingerprint Utility	137
Fingerprint Logon	138
Care and maintenance of your fingerprint reader	138
Fingerprint reader limitations	140
Chapter 6: If Something Goes Wrong	141
Problems that are easy to fix	141
Problems when you turn on the computer	142
The Windows® operating system is not working	144
Using Startup options to fix problems	145
Internet problems	147
The Windows® operating system can help you	147
Fixing a problem with Device Manager	148
Checking device properties	148
Memory problems	149
Power and the batteries	150
Keyboard problems	151
Display problems	151
Disk or storage drive problems	153
Error-checking	154
Optical disc drive problems	155
Sound system problems	157
ExpressCard® problems	157
ExpressCard® checklist	157
Resolving ExpressCard® problems	158
Printer problems	159
Wireless networking problems	160
DVD operating problems	161
Develop good computing habits	163
Data and system configuration backup in the Windows® operating system	164
If you need further assistance	168
Contacting Toshiba	169
Other Toshiba Internet Web sites	169
Toshiba’s worldwide offices	170
Appendix A: Function Keys	171
Functions	171
Lock (Instant security)	172
Power plan	172
Sleep mode	172
Hibernation mode	172
Output (Display switch)	173
Display brightness	174
Disabling or enabling wireless devices	174
Disabling or enabling the touch pad	174
Cursor control overlay	174
Numeric overlay	175
Scroll lock	175
Volume Mute	175
Optical disk drive	175
Keyboard Function keys	176
Zoom (Display resolution)	176
Appendix B: Power Cord/Cable Connectors	177
Glossary	178
A	180
B	181
C	182
D	183
E	184
F	185
G	185
H	185
I	186
K	186
L	186
M	187
N	188
O	188
P	188
R	189
S	190
T	191
U	191
W	192