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Charging the RTC battery, Monitoring main battery power

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74 Mobile Computing Monitoring main battery power Please make a complete back up of your data to external media before discharging the battery. For more information, see "Backing up your work" on page 69. 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

Section	Page
Portégé® Z930 Series User’s Guide	1
Contents	18
Introduction	24
This guide	26
Safety icons	27
Other icons used	27
Your computer’s features and specifications	28
Other documentation	28
Service options	28
Chapter 1: Getting Started	29
Selecting a place to work	29
Setting up a work environment	29
Keeping yourself comfortable	30
Computer user comfort recommendations	30
Good Working Posture	30
Using the notebook with an external keyboard, mouse or monitor	31
Typing style	32
Taking breaks and varying tasks	32
Mobile computing tips	33
Transporting the notebook	33
Seeking additional help	33
Check list	34
Precautions	34
Important information on your computer’s cooling fan	36
Setting up your computer	37
Connecting to a power source	37
Charging the main battery	40
Using the computer for the first time	40
Initial setup	41
Setting up your software	41
Registering your computer with Toshiba	41
To Shut down your computer	42
To Restart your computer	42
To place your computer in Sleep mode	43
Adding optional external devices	44
Adding memory (optional)	44
Recovering the Internal Storage Drive	44
Creating recovery media	46
Restoring from recovery media	48
Refresh your PC (with user’s data)	49
Reset your PC	52
Installing drivers and applications	54
Using the touch pad	55
Adjusting touch pad settings	58
Disabling or enabling the touch pad	59
Scrolling with the touch pad	59
Control buttons	59
Connecting an external device	59
Using external display devices	60
Selecting video cables	60
Connecting an HDMI™-compatible television or display device	60
Connecting an external monitor or projector	60
Directing the display output when you turn on the computer	61
Adjusting the quality of the external display	62
Customizing your computer’s settings	62
Caring for your computer	63
Cleaning the computer	63
Moving the computer	63
Using a computer lock	64
Chapter 2: Learning the Basics	65
Computing tips	65
Using the keyboard	66
Ctrl, Fn, and Alt keys	67
Function keys	67
Special Windows® keys	67
Mouse properties	68
Starting an app	68
Starting an app from the Start screen	68
Saving your work	69
Backing up your work	69
Toshiba’s online resources	70
Chapter 3: Mobile Computing	71
Toshiba’s energy-saver design	71
Running the computer on battery power	71
Battery Notice	72
Power management	73
Charging the main battery	73
Charging the RTC battery	74
Monitoring main battery power	74
Determining remaining battery power	75
What to do when the main battery runs low	76
Setting battery notifications	76
Conserving battery power	77
Power Plans	78
Using the eco power plan	79
Changing the main battery	80
Taking care of your battery	80
Safety precautions	80
Maintaining your battery	81
Disposing of your computer	81
Traveling tips	81
Chapter 4: Exploring Your Computer’s Features	83
Exploring the Start screen	83
Charms	84
Tiles	85
Exploring the desktop	85
Finding your way around the desktop	85
Windows® Store	87
Setting up for communications	87
Connecting your computer to a network	88
Exploring audio features	89
Recording sounds	89
Using external speakers or headphones	89
Using the Web Camera	90
Using the Memory card reader	91
Inserting memory media	91
Removing memory media	92
Chapter 5: Utilities	93
Desktop Assist	94
Media & Entertainment	95
Tools & Utilities	96
Support & Recovery	97
eco Utility®	98
Setting passwords	99
Using a supervisor password	99
Using a user password	101
Deleting a user password	101
System Settings	102
Sleep and Charge	104
USB Sleep and Charge	104
Enabling/Disabling USB Sleep and Charge	106
Power supply mode settings	106
Function Key	107
Cooling Performance Diagnostic Tool	108
PC Diagnostic Tool	109
PC Health Monitor	110
Recovery Media Creator	111
Service Station	111
Trusted Platform Module (TPM)	112
TOSHIBA Application Installer	113
Fingerprint Utility	114
Fingerprint utility limitations	114
Using the Fingerprint Utility	114
Fingerprint Logon	115
Care and maintenance of your fingerprint reader	115
Fingerprint reader limitations	117
Chapter 6: If Something Goes Wrong	118
Problems that are easy to fix	118
Problems when you turn on the computer	119
The Windows® operating system is not working	121
Using Startup options to fix problems	121
Internet problems	123
The Windows® operating system can help you	124
Fixing a problem with Device Manager	124
Checking device properties	125
Memory problems	125
Power and the batteries	126
Keyboard problems	127
Display problems	127
Disk or storage drive problems	129
Error-checking	129
Sound system problems	131
Printer problems	131
Wireless networking problems	132
Develop good computing habits	134
Data and system configuration backup in the Windows® operating system	135
If you need further assistance	140
Contacting Toshiba	141
Other Toshiba Internet Web sites	141
Toshiba’s worldwide offices	141
Appendix A: TOSHIBA Function Keys	143
Functions	143
Lock (Instant security)	144
Power plan	144
Sleep mode	144
Hibernation mode	144
Output (Display switch)	145
Display brightness	146
Disabling or enabling wireless devices	146
Disabling or enabling the touch pad	146
Disabling or enabling the cursor control overlay	146
Disabling or enabling the numeric overlay	147
Disabling or enabling the scroll lock	147
Volume Mute	147
Keyboard Function keys	148
Zoom (Display resolution)	148
Appendix B: Power Cord/Cable Connectors	149
Glossary	150
A	152
B	153
C	154
D	155
E	156
F	157
G	157
H	157
I	158
K	158
L	158
M	159
N	160
O	160
P	160
R	161
S	162
T	163
U	163
W	163