Lenovo ThinkPad S431 Hardware Maintenance Manual - Page 45

No-beep symptoms, Table 3. Error messages continued, Table 4. No-beep symptoms

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Table 3. Error messages (continued) Symptom or error (beeps, if any) The battery installed is not supported by this system and will not charge. Please replace the battery with the correct Lenovo battery for this system. Press the ESC key to continue. This system does not support batteries that are not genuine Lenovo-made or authorized. The system will continue to boot, but may not charge unauthorized batteries. Attention: Lenovo has no responsibility for the performance or safety of unauthorized batteries, and provides no warranties for failures or damage arising out of their use. FRU or action, in sequence Unauthorized battery is connected to the system. Press the ESC to continue. Unauthorized battery is connected to the system. Press the ESC to continue. 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. Ensure that every connector is connected tightly and correctly. 2. Memory module. 3. System board. 1. Reseat the Memory module. 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. Beep symptoms Table 5. Beep symptoms Problem One short beep, pause, three short beeps, pause, three more short beeps, and one short beep Three short beeps, pause, one short beep, pause, one more short beep, and three short beeps One long and two short beeps Four cycles of four short beeps Five short beeps Five short beeps, pause, five short beeps, and pause Solution Ensure that memory modules are installed correctly. If they are, and you still hear the beeps, have the computer serviced. PCI resource allocation failure. Power off the computer and remove the PCI devices. If the beeps persist, have the computer serviced. The video function has a problem. Have the computer serviced. The Security Chip has a problem. Have the computer serviced. The system board has a problem. Have the computer serviced. Continue to boot immediately when the error was detected. Chapter 4. Related service information 39

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Table 3. Error messages (continued)
Symptom or error (beeps, if any)
FRU or action, in sequence
The battery installed is not supported by this system
and will not charge. Please replace the battery with the
correct Lenovo battery for this system. Press the ESC
key to continue.
Unauthorized battery is connected to the system. Press
the ESC to continue.
This system does not support batteries that are not
genuine Lenovo-made or authorized. The system will
continue to boot, but may not charge unauthorized
batteries.
Attention:
Lenovo has no responsibility for the
performance or safety of unauthorized batteries, and
provides no warranties for failures or damage arising out
of their use.
Unauthorized battery is connected to the system. Press
the ESC to continue.
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.
Ensure that every connector is connected tightly
and correctly
.
2. Memory module.
3. System board.
No beep, power-on indicator on, and LCD blank during
POST.
1.
Reseat the Memory module
.
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
.
Beep symptoms
Table 5. Beep symptoms
Problem
Solution
One short beep, pause, three short beeps, pause, three
more short beeps, and one short beep
Ensure that memory modules are installed correctly. If
they are, and you still hear the beeps, have the computer
serviced.
Three short beeps, pause, one short beep, pause, one
more short beep, and three short beeps
PCI resource allocation failure. Power off the computer
and remove the PCI devices. If the beeps persist, have
the computer serviced.
One long and two short beeps
The video function has a problem. Have the computer
serviced.
Four cycles of four short beeps
The Security Chip has a problem. Have the computer
serviced.
Five short beeps
The system board has a problem. Have the computer
serviced.
Five short beeps, pause, five short beeps, and pause
Continue to boot immediately when the error was
detected.
Chapter 4
.
Related service information
39