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Troubleshooting charts
Problem Action
0251 (system CMOS
checksum bad)
The system CMOS might have been corrupted by an application program. The
computer uses the default settings. Run the BIOS setup utility to reconfigure the
settings.
If you still have a problem, have the computer serviced.
0252 (password
checksum bad)
The password you have set is cleared. Run the BIOS setup utility to set the pass-
word.
0260 (system line error) Have the computer serviced.
0270 (real time clock
error)
Have the computer serviced.
0271 (date and time
error)
Neither the date nor the time is set in the computer. Set the date and time using
the BIOS setup utility.
0280 (Previous boot
incomplete — Default
configuration used)
Your computer was previously unable to complete the boot process. Power the
computer off; then power it on to start the BIOS setup utility. Verify the configura-
tion.
If the same error message appears, have the computer serviced.
02D0 (system cache
error)
The cache is disabled. Have the computer serviced.
02F4 (EISA CMOS not
writable)
Have the computer serviced.
02F5 (DMA test failed) Have the computer serviced.
02F6 (software NMI
failed)
Have the computer serviced.
02F7 (fail-safe timer
NMI failed)
Have the computer serviced.
The power-on password
prompt
A power-on password or supervisor password is set. Type the correct password
and press Enter to use the computer (see “Entering a password” on page 73).
If you still have a problem, have the computer serviced.
The hard disk drive
password prompt
A hard disk drive password is set. Type the correct password and press Enter to
use the computer (see “Entering a password” on page 73).
If you still have a problem, have the computer serviced.
90 ThinkPad 240 User's Reference