Ricoh M001 Service Manual page 91

Rev. 11/03/2009
824 Self-diagnostic error 4: NVRAM
NVRAM device does not exist,
D
NVRAM device is damaged,
NVRAM socket damaged
Self-diagnostic Error:
NVRAM/Optional NVRAM
826 D
The NVRAM or optional NVRAM
returned an error during the
self-diagnostic test.
Self-diagnostic Error: RAM
The resident RAM returned a
827 D
verify error during the
self-diagnostic test.
Self-diagnostic error 7: ROM
Measuring the CRC for the boot
monitor and operating system
828 D
program results in an error.
A check of the CRC value for
ROMFS of the entire ROM area
results in an error.
Self-diagnostic Error: Optional RAM
829 B
The optional RAM returned an error
during the self-diagnostic test.
SM
NVRAM defective
Controller board defective
NVRAM backup battery exhausted
NVRAM socket damaged
Make sure NVRAM is seated
correctly in its socket
Replace the NVRAM on the
controller board
Update controller firmware again
Replace RAM DIMM
Software defective
Controller board defective
ROM defective
Replace the optional memory
board
Controller board defective
4-11
Service Call Conditions
M001