Dell Vostro 260 Owner's Manual page 56

Error Messages
TIME-OF-DAY CLOCK STOPPED
TIME-OF-DAY NOT SET-PLEASE RUN THE
SYSTEM SETUP PROGRAM
TIMER CHIP COUNTER 2 FAILED
UNEXPECTED INTERRUPT IN PROTECTED
MODE
X:\ IS NOT ACCESSIBLE. THE DEVICE IS
NOT READY
WARNING: BATTERY IS CRITICALLY LOW
56
Description
the problem persists, try to restore the
data by entering the system setup
program, then immediately exit the
program. If the message reappears,
contact Dell.
The reserve battery that supports the
system configuration settings may require
recharging. Connect your computer to an
electrical outlet to charge the battery. If
the problem persists, contact Dell.
The time or date stored in the system
setup program does not match the system
clock. Correct the settings for the Date
and Time options.
A chip on the system board may be
malfunctioning. Run the System Set tests
in the Dell Diagnostics.
The keyboard controller may be
malfunctioning, or a memory module may
be loose. Run the System Memory tests
and the Keyboard Controller test in the
contact Dell.
Insert a disk into the drive and try again.
The battery is running out of charge.
Replace the battery, or connect the
computer to an electrical outlet;
otherwise, activate hibernate mode or
shut down the computer.