Section 2 TROUBLE SHOOTING
2-9
CMOS Problem
A message “CMOS Checksum Failure” displays during
the booting process -
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Try to reboot the system.
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If the message “CMOS Checksum Failure” appears
during the booting procedure, it may indicate failure of
the CMOS battery. If so, you need to replace the battery.
This battery normally lasts one to two years on
continuous operation. However, for a typical user, the
battery lasts three to five years. The battery is of type
ML1220 (3V). You may replace it by yourself. The
battery is located nearby the DIMM Socket. See Section
4 on how to remove the DIMM cover. If you are not sure
how this is done, return the notebook to the dealer.
