User Manual
Page 106
...completely discharged, a warning prompts you to store 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 display the incorrect time and date, or stop working . The computer can be used... to reset the real-time clock. If the RTC battery is low, the real-time clock and calendar may have become completely ...
...completely discharged, a warning prompts you to store 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 display the incorrect time and date, or stop working . The computer can be used... to reset the real-time clock. If the RTC battery is low, the real-time clock and calendar may have become completely ...