IBM ThinkPad TransNote Servce And Troubleshooting Manual page 33

Message
0232: Extended RAM
error
0250: System battery
error
0251: System CMOS
checksum bad
0252: Password
checksum bad
0260: System timer
error
0270: Real time clock
error
0271: Date and time
error
0280: Previous boot
incomplete
02D0: System cache
error
02F4: EISA CMOS not
writable
02F5: DMA test failed
02F6: Software NMI
failed
02F7: Fail-safe timer
NMI failed
The power-on
password prompt
The hard disk
password prompt
Solution
The extended RAM failed. Test your computer's memory with the PC-Doctor
for Windows. If you increased memory just before turning the computer on,
reinstall it. Then test the memory with the PC-Doctor for Windows.
The system battery is dead. Replace the battery and run the BIOS Setup
Utility to verify the configuration. If you still have a problem, have the
computer serviced.
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 see the same error code, have the computer serviced.
The password you have set is cleared. Run the BIOS Setup Utility to set the
password.
Have the computer serviced.
Have the computer serviced.
Neither the date nor the time is set in the computer. Set the date and time,
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.
The cache is disabled. Have the computer serviced.
Have the computer serviced.
Have the computer serviced.
Have the computer serviced.
Have the computer serviced.
A power-on password or a supervisor password is set. Type the password and
press Enter to use the computer (refer to "Using passwords" on page 14). 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 (refer to "Using passwords" on page 14). If you still see the same
error message, have the computer serviced.
Chapter 4. Solving computer problems
25