IBM THINKPAD R40 User Manual page 27

Message
0251: System CMOS
checksum bad
0260: System timer error
0270: Real time clock
error
0271: Date and time error Neither the date nor the time is set in the computer. Set the date and time,
0280: Previous boot
incomplete
02D0: System cache error The cache is disabled. Have the computer serviced.
02F4: EISA CMOS not
writable
02F5: DMA test failed
02F6: Software NMI
failed
02F7: Fail-safe timer NMI
failed
1802: Unauthorized
network card is plugged
in - Power off and
remove the miniPCI
network card.
The power-on password
prompt
The hard disk password
prompt
Solution
The system CMOS might have been corrupted by an application program.
The computer uses the default settings. Run IBM BIOS Setup Utility to
reconfigure the settings. If you still see the same error code, have the
computer serviced.
Have the computer serviced.
Have the computer serviced.
using the IBM BIOS Setup Utility.
Your computer was previously unable to complete the boot process.
Turn the computer off; then turn it on to start the IBM BIOS Setup Utility.
Verify the configuration and then restart the computer either by choosing
the Exit Saving Changes option under the Restart item or by pressing F10.
If you still see the same error code, have the computer serviced.
Have the computer serviced.
Have the computer serviced.
Have the computer serviced.
Have the computer serviced.
The Mini-PCI network card is not supported on this computer. Remove it.
A power-on password or a supervisor password is set. Type the password
and press Enter to use the computer. If the power-on password is not
accepted, a supervisor password might have been set. Type the supervisor
password and press Enter. If you still see the same error message, have the
computer serviced.
A hard disk password is set. Type the password and press Enter to use the
computer.
If you still see the same error message, have the computer serviced.
Solving computer problems
Chapter 2. Solving computer problems
15