User Guide
Page 108
... have become completely discharged while 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 . NOTE It is seldom necessary to reset the ...real-time clock. The RTC battery does not charge while the computer is turned off even when the AC adapter is low, the real-...
... have become completely discharged while 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 . NOTE It is seldom necessary to reset the ...real-time clock. The RTC battery does not charge while the computer is turned off even when the AC adapter is low, the real-...