Power and
Real Time Clock battery
The Real Time Clock (RTC) battery provides power for the internal real time clock and calendar. It also maintains the system configuration.
If the RTC battery becomes completely discharged, the system loses this data and the real time clock and calendar stop working.
The computer's RTC battery is a lithium ion battery and should be replaced only by your dealer or by a TOSHIBA service representative. The battery can explode if not properly replaced, used, handled or disposed of. Dispose of the battery as required by local ordinances or regulations.
■You can change the settings of the Real Time Clock by pressing F2 in
POST.
■After configuring the time and date for the Real Time Clock battery, we recommend that you turn the power status of your computer to "ON" so that the Real Time Clock battery is charged. Refer to Chapter 9 Troubleshooting, for details.
If the following message is displayed on the LCD:
ERROR 0271: Check date and time settings.
WARNING 0251: System CMOS checksum
Press [F1] to resume, [F2] to setup.
The charge in the RTC battery is getting low or has been exhausted. You will need to set the date and time within the BIOS setup using the following steps:
1.Press F2 key - the BIOS setup screen will be displayed.
2.Set the date in System Date.
3.Set the time in System Time.
4.Press F10 key. Confirmation message will appear.
Press Enter key. BIOS setup will terminate and the computer will be rebooted.
After configuring the date and time it is recommended that you switch the computer on and then leave it in this state so that the Real Time Clock battery can be charged.
Care and use of the battery pack
The battery pack is a vital component of portable computing. Taking proper care of it will help ensure longer operating time on battery power as well as a longer life for your battery pack. Follow the instructions in this section carefully to ensure safe operation and maximum performance.
User’s Manual |