IBM 2681 Hardware Maintenance Manual - Page 59

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Symptom-to-FRU index Symptom or error 0250 System battery error-System battery is dead. 0251 System CMOS checksum bad-Default configuration used. 0252 Password checksum bad-The password is cleared. 0260 System timer error 0270 Real time clock error 0271 Date and time error-Neither the date nor the time is set in the computer. 0280 Previous boot incomplete-Default configuration used. 02B2 Incorrect drive A type 02F4 EISA CMOS not writable 02F5 DMA test failed 02F6 Software NMI failed 02F7 Fail-safe timer NMI failed 1801 Attached docking station is not supported 1802 Unauthorized network card is plugged in-Power off and remove the miniPCI network card. FRU or action, in sequence Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. Reset the password by running IBM BIOS Setup Utility. 1. Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. 2. System board. 1. Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. 2. System board. Run IBM BIOS Setup Utility to reset the time and date. 1. Load "Setup Default" in IBM BIOS Setup Utility. 2. DIMM. 3. System board. 1. Diskette drive. 2. External FDD cable. 3. I/O card. 1. Load Setup Defaults in IBM BIOS Setup Utility. 2. Replace the backup battery. 3. System board. 1. DIMM. 2. System board. 1. DIMM. 2. System board. 1. DIMM. 2. System board. Shut down the computer and remove it from the docking station. 1. Remove Mini PCI network card. 2. System board. ThinkPad R40 55

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Symptom
or
error
FRU
or
action,
in
sequence
0250
System
battery
error
—
System
battery
is
dead.
Replace
the
backup
battery
and
run
IBM
BIOS
Setup
Utility
to
reset
the
time
and
date
.
0251
System
CMOS
checksum
bad
—
Default
configuration
used.
Replace
the
backup
battery
and
run
IBM
BIOS
Setup
Utility
to
reset
the
time
and
date
.
0252
Password
checksum
bad
—
The
password
is
cleared.
Reset
the
password
by
running
IBM
BIOS
Setup
Utility.
0260
System
timer
error
1.
Replace
the
backup
battery
and
run
IBM
BIOS
Setup
Utility
to
reset
the
time
and
date
.
2.
System
board.
0270
Real
time
clock
error
1.
Replace
the
backup
battery
and
run
IBM
BIOS
Setup
Utility
to
reset
the
time
and
date
.
2.
System
board.
0271
Date
and
time
error
—
Neither
the
date
nor
the
time
is
set
in
the
computer.
Run
IBM
BIOS
Setup
Utility
to
reset
the
time
and
date
.
0280
Previous
boot
incomplete
—
Default
configuration
used.
1.
Load
“
Setup
Default
”
in
IBM
BIOS
Setup
Utility
.
2.
DIMM.
3.
System
board.
02B2
Incorrect
drive
A
type
1.
Diskette
drive
.
2.
External
FDD
cable.
3.
I/O
card.
02F4
EISA
CMOS
not
writable
1.
Load
Setup
Defaults
in
IBM
BIOS
Setup
Utility
.
2.
Replace
the
backup
battery.
3.
System
board.
02F5
DMA
test
failed
1.
DIMM
.
2.
System
board.
02F6
Software
NMI
failed
1.
DIMM
.
2.
System
board.
02F7
Fail-safe
timer
NMI
failed
1.
DIMM
.
2.
System
board.
1801
Attached
docking
station
is
not
supported
Shut
down
the
computer
and
remove
it
from
the
docking
station.
1802
Unauthorized
network
card
is
plugged
in
—
Power
off
and
remove
the
miniPCI
network
card.
1.
Remove
Mini
PCI
network
card.
2.
System
board.
Symptom-to-FRU
index
ThinkPad
R40
55