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Charging the RTC battery - bios

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Mobile Computing 87 Running the computer on battery power The battery may not start charging immediately under the following conditions: ❖ The battery is extremely hot or cold. To ensure that the battery charges to its full capacity, wait until it reaches room temperature (50 to 80 degrees Fahrenheit, 10 to 26 degrees Celsius). ❖ The battery is almost completely discharged. Leave the power connected and the battery should begin charging after a few minutes. HINT: Once the battery is fully charged, we recommend that you periodically operate your computer on battery power until the battery discharges completely. 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 77 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.

Section	Page
Qosmio® X800 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
Installing a memory module	44
Removing a memory module	50
Checking total memory	52
Recovering the Internal Storage Drive	53
Creating recovery media	54
Restoring from recovery media	56
Refresh your PC (with user’s data)	57
Reset your PC	59
Installing drivers and applications	62
Using the touch pad	63
Adjusting touch pad settings	65
Disabling or enabling the touch pad	66
Connecting an external device	66
Using external display devices	66
Selecting video cables	67
Connecting an HDMI™-compatible television or display device	67
Connecting an external monitor or projector	67
Directing the display output when you turn on the computer	68
Adjusting the quality of the external display	69
Customizing your computer’s settings	69
Caring for your computer	69
Cleaning the computer	70
Moving the computer	70
Using a computer lock	70
Chapter 2: Learning the Basics	72
Computing tips	72
Using the keyboard	73
Function keys	74
Special Windows® keys	74
Backlit keyboard	75
Mouse properties	75
Starting an app	75
Starting an app from the Start screen	76
Saving your work	76
Backing up your work	77
Using the optical disc drive	77
Viewing Blu-ray Disc™ movies	78
Optical disc drive components	79
Media control buttons	80
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	84
Battery Notice	85
Power management	86
Charging the main battery	86
Charging the RTC battery	87
Monitoring battery power	88
Determining remaining battery power	89
What to do when the battery runs low	90
Setting battery notifications	90
Conserving battery power	91
Power Plans	92
Using the eco power plan	93
Changing the main battery	93
Removing the battery from the computer	94
Inserting a charged battery	95
Taking care of your battery	96
Safety precautions	96
Maintaining your battery	97
Disposing of used batteries	97
Traveling tips	98
Chapter 4: Exploring Your Computer’s Features	100
Exploring the Start screen	100
Charms	101
Tiles	102
Exploring the desktop	102
Finding your way around the desktop	102
Windows® Store	104
Setting up for communications	104
Connecting your computer to a network	105
Exploring audio features	105
Recording sounds	106
Using external speakers or headphones	106
Using the Web Camera	107
Using the Memory card reader	107
Inserting memory media	108
Removing memory media	108
Chapter 5: Utilities	110
Desktop Assist	111
Media & Entertainment	112
Tools & Utilities	113
Support & Recovery	114
eco Utility®	115
Setting passwords	116
Using a supervisor password	116
Using a user password	118
Deleting a user password	118
System Settings	119
Sleep and Charge	120
Sleep and Charge	120
Enabling/Disabling USB Sleep and Charge	122
Power supply mode settings	122
Sleep and Music	123
HDD Protection Utility	124
Function Key	125
PC Diagnostic Tool Utility	126
PC Health Monitor	127
Recovery Media Creator	128
Service Station	128
TOSHIBA Application Installer	129
Chapter 6: If Something Goes Wrong	130
Problems that are easy to fix	130
Problems when you turn on the computer	131
Windows® operating system is not working	133
Using Startup options to fix problems	134
Internet problems	136
Windows® operating system can help you	137
Fixing a problem with Device Manager	137
Checking device properties	137
Memory problems	138
Power and the batteries	139
Keyboard problems	141
Display problems	141
Disk or storage drive problems	143
Error-checking	143
Optical disc drive problems	145
Sound system problems	148
Printer problems	148
Wireless networking problems	149
DVD Blu-ray Disc™ operating problems	151
Develop good computing habits	152
Data and system configuration backup in the Windows® operating system	153
If you need further assistance	157
Contacting Toshiba	158
Other Toshiba Internet Web sites	158
Toshiba’s worldwide offices	159
Appendix A: TOSHIBA Function Keys	160
Functions	160
Help file	161
Display brightness	161
Output (Display switch)	162
Disabling or enabling the touch pad	163
Media buttons	163
Volume Mute	164
Disabling or enabling wireless devices	164
Keyboard Function keys	164
Zoom (Display resolution)	164
Appendix B: Power Cord/Cable Connectors	165
Glossary	166