IBM R51 Series User Manual
Symptom
or
error
FRU
or
action,
in
sequence
02F4
EISA
EISA
CMOS
not
writable.
1.
Load
Setup
Defaults
in
IBM
BIOS
Setup
Utility.
2.
Replace
the
backup
battery.
3.
System
board.
02F5
DMA
DMA
test
failed.
1.
DIMM.
2.
System
board.
02F6
Software
Software
NMI
failed
1.
DIMM.
2.
System
board.
02F7
Fail-safe
Fail-safe
timer
NMI
failed
1.
DIMM.
2.
System
board.
1802
Unauthorized
Unauthorized
network
card
is
plugged
in—Turn
off
and
remove
the
miniPCI
network
card.
1.
Remove
Mini
PCI
network
card.
2.
System
board.
1803
Unauthorized
Unauthorized
daughter
card
is
plugged
in—Turn
off
and
remove
the
daughter
card.
1.
Remove
the
daughter
card
that
you
installed.
2.
System
board.
Symptom-to-FRU
index
ThinkPad
R50/R50p
and
R51
Series
57