Lenovo R50 Series manual Solving computer problems

	Solving computer problems
Message	Solution
0280: Previous boot	Your computer was previously unable to complete the boot process.
incomplete	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.
02D0: System cache error	The cache is disabled. Have the computer serviced.
02F4: EISA CMOS not	Have the computer serviced.
writable
02F5: DMA test failed	Have the computer serviced.
02F6: Software NMI	Have the computer serviced.
failed
02F7: Fail-safe timer	Have the computer serviced.
NMI failed
1802: Unauthorized	The Mini-PCI network card is not supported on this computer. Remove it.
network card is plugged
in - Power off and
remove the miniPCI
network card.
1803: Unauthorized	The daughter card is not supported on this computer. Remove it.
daughter card is plugged
in - Power off and
remove the daughter
card.

Chapter 2. Solving computer problems 15