The message “Operating system not found” appears on the screen after you turn on the computer.
!
If this message appears when you are booting from the hard disk, insert a bootable CD disc in the DVD
drive and check the condition of the hard disk.
The message “Invalid system disk” or “Disk error” appears on the screen een after you turn on the
computer .
!
If you are deliberately trying to boot from a CD disc, replace the disc with a bootable one and press any key
to continue booting.
!
If this message appears when you are booting from the hard disk, insert a bootable CD disc in the DVD
drive and check the condition of the hard disk.
Other Problems
The date/time is incorrect.
!
Correct the date and time via the operating system or BIOS Setup program.
!
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.
6-15
Troubleshooting
