Lenovo 646001U Troubleshooting Guide - Page 25

Message, Solution, Exit Saving Changes, Restart

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Solving computer problems Message Solution 0250: System battery error The backup battery, which is used to preserve the configuration information, such as the date and time, while the computer is turned off, is depleted. Replace the battery and run BIOS Setup Utility to verify the configuration. If you still have a problem, have the computer serviced. 0251: System CMOS checksum bad The system CMOS might have been corrupted by an application program. The computer uses the default settings. Run BIOS Setup Utility to reconfigure the settings. If you still see the same error code, have the computer serviced. 0271: Date and time Neither the date nor the time is set in the computer. Set the error date and time, using the BIOS Setup Utility. 0280: Previous boot Your computer was previously unable to complete the boot incomplete process. Turn the computer off; then turn it on to start the 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. 1802: Unauthorized network card is plugged in - Power off and remove the miniPCI network card. The Mini-PCI network card is not supported on this computer. Remove it. 1803: Unauthorized daughter card is plugged in - Power off and remove the daughter card. The daughter card is not supported on this computer. Remove it. 1804: Unauthorized WAN card is plugged in - Power off and remove the WAN card. The WAN card is not supported on this computer. Remove it. 1805: Unauthorized Wireless USB card is plugged in - Power off and remove the Wireless USB card. The Wireless USB card is not supported on this computer. Remove it. 2100: Initialization error on HDD0 (Main hard disk drive) The hard disk is not working. Have the hard disk serviced. Chapter 3. Solving computer problems 15

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Message
Solution
0250: System battery
error
The backup battery, which is used to preserve the configuration
information, such as the date and time, while the computer is
turned off, is depleted. Replace the battery and run BIOS Setup
Utility to verify the configuration. If you still have a problem,
have the computer serviced.
0251: System CMOS
checksum bad
The system CMOS might have been corrupted by an
application program. The computer uses the default settings.
Run BIOS Setup Utility to reconfigure the settings. If you still
see the same error code, 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
Your computer was previously unable to complete the boot
process.
Turn the computer off; then turn it on to start the 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.
1802: Unauthorized
network card is
plugged in - Power
off and remove the
miniPCI network
card.
The Mini-PCI network card is not supported on this computer.
Remove it.
1803: Unauthorized
daughter card is
plugged in - Power
off and remove the
daughter card.
The daughter card is not supported on this computer. Remove
it.
1804: Unauthorized
WAN card is
plugged in - Power
off and remove the
WAN card.
The WAN card is not supported on this computer. Remove it.
1805: Unauthorized
Wireless USB card is
plugged in - Power
off and remove the
Wireless USB card.
The Wireless USB card is not supported on this computer.
Remove it.
2100: Initialization
error on HDD0
(Main hard disk
drive)
The hard disk is not working. Have the hard disk serviced.
Solving computer problems
Chapter 3. Solving computer problems
15