Lenovo ThinkPad Edge E420 Hardware Maintenance Manual - Page 50

Numeric error codes, Error messages, No-beep symptoms, Table 2. Numeric error codes - fan error

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Numeric error codes Table 2. Numeric error codes Symptom or error (beeps, if any) 0187 EAIA data access error-The access to EEPROM is failed. (two short beeps) 0189 Invalid RFID configuration information area-The EEPROM checksum is not correct. (two short beeps) 0190 Critical low-battery error (two short beeps) 0191 System Security-Invalid Remote Change requested. 0251 System CMOS checksum bad- Default configuration used. (two short beeps) 0271 Date and time error-Neither the date nor the time is set in the computer. (two short beeps) 1802 Unauthorized network card is plugged in-Turn off and remove the miniPCI network card. (two short beeps) FRU or action, in sequence System board. System board. 1. Charge the battery pack. 2. Battery pack. 1. Run ThinkPad Setup, and then save current setting by pressing F10. 2. System board. 1. Charge the backup battery for more than 8 hours by connecting the ac power adapter. 2. Replace the backup battery and run ThinkPad Setup to reset the time and date. Run ThinkPad Setup to reset the time and date. 1. Remove the Mini PCI network card. 2. System board. Error messages Table 3. Error messages Symptom or error (beeps, if any) Fan error. (four short beeps, one long beep) FRU or action, in sequence 1. Fan. 2. Thermal grease. 3. System board. No-beep symptoms Table 4. No-beep symptoms Symptom or error No beep, power-on indicator on, LCD blank, and no POST. No beep, power-on indicator on, and LCD blank during POST. The power-on password prompt appears. The hard-disk password prompt appears. FRU or action, in sequence 1. Make sure that every connector is connected tightly and correctly. 2. DIMM. 3. System board. 1. Reseat DIMM. 2. System board. A power-on password or a supervisor password is set. Type the password and press Enter. A hard-disk password is set. Type the password and press Enter. 44 Hardware Maintenance Manual

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Numeric error codes
Table 2. Numeric error codes
Symptom or error (beeps, if any)
FRU or action, in sequence
0187
EAIA data access error-The access to EEPROM is failed.
(two short beeps)
System board.
0189
Invalid RFID configuration information area—The
EEPROM checksum is not correct.
(two short beeps)
System board.
0190
Critical low-battery error
(two short beeps)
1.
Charge the battery pack.
2. Battery pack.
0191
System Security—Invalid Remote Change requested.
1.
Run ThinkPad Setup, and then save current
setting by pressing F10.
2. System board.
0251
System CMOS checksum bad— Default configuration
used.
(two short beeps)
1.
Charge the backup battery for more than 8 hours
by connecting the ac power adapter.
2. Replace the backup battery and run ThinkPad Setup
to reset the time and date.
0271
Date and time error—Neither the date nor the time is set
in the computer.
(two short beeps)
Run ThinkPad Setup to reset the time and date.
1802
Unauthorized network card is plugged in—Turn off and
remove the miniPCI network card.
(two short beeps)
1.
Remove the Mini PCI network card.
2. System board.
Error messages
Table 3. Error messages
Symptom or error (beeps, if any)
FRU or action, in sequence
Fan error.
(four short beeps, one long beep)
1.
Fan
.
2. Thermal grease.
3. System board.
No-beep symptoms
Table 4. No-beep symptoms
Symptom or error
FRU or action, in sequence
No beep, power-on indicator on, LCD blank, and no
POST.
1.
Make sure that every connector is connected
tightly and correctly
.
2. DIMM.
3. System board.
No beep, power-on indicator on, and LCD blank during
POST.
1.
Reseat DIMM
.
2. System board.
The power-on password prompt appears.
A power-on password or a supervisor password is set.
Type the password and press
Enter
.
The hard-disk password prompt appears.
A hard-disk password is set. Type the password and
press
Enter
.
44
Hardware Maintenance Manual