chiliGREEN Mitac 9515 - Manual (Page 103)

Troubleshooting 8-14
Other Problems
The date/time is incorrect.
z
Correct the date and time via the operating system or BIOS Setup
program.
z
After you have performed everything as described above and still
have the incorrect date and time every time you turn on the computer,
the RTC (Real-Time Clock) battery is at the end of its life. Call an
authorized dealer to replace the RTC battery.