IBM B50 manual Nvram problem

Error Code	Function	Repair Action/Possible Failing FRU
	/Description
25A80xxx	NVRAM problem	Notes:
		1. Errors reported against NVRAM can be caused by
		low battery voltage and (more rarely) power
		outages that occur during normal system usage.
		With the exception of the 25A80000 error, these
		errors are really just warnings that the NVRAM
		data content had to be re-established and do not
		require any FRU replacement unless the error is
		persistent. When one of these errors occurs, any
		system customization (for example boot device list)
		information has been lost. The system may need
		to be reconfigured.
		2. If the error is persistent, replace the battery.
		3. If the error is persistent after battery replacement,
		or the error code is 25A80000, replace the system
		board (see note 3 on page 2-1).
25A80000	Initialization failed,	Refer to 25A80xxx.
	device test failed.
25A80001	init-nvram invoked,	Refer to 25A80xxx.
	ALL of NVRAM
	initialized.
25A80002	init-nvram invoked,	Refer to 25A80xxx.
	some data partitions
	may have been
	preserved.
25A80011	Data corruption	Refer to 25A80xxx.
	detected, ALL of
	NVRAM initialized.
25A80012	Data corruption	Refer to 25A80xxx.
	detected, some data
	partitions may have
	been preserved.
25A80100	NVRAM data	Turn off, then turn on the server and retry the
	validation check	operation before replacing any system components.
	failed.	Refer to 25A80xxx.
25A80201	Unable to expand	Refer to 25A80xxx.
	target partition while
	saving configuration
	variable.
25A80202	Unable to expand	Refer to 25A80xxx.
	target partition while
	writing error log
	entry.

Chapter 3. Error Code to FRU Index 3-7