Error Messages; Beep Symptoms - Lenovo E470 Hardware Maintenance Manual

Error messages

Table 3. Error messages
Symptom or error
Fan error.
Thermal sensing error.
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.

Beep symptoms

Table 4. Beep symptoms
Symptom or error
Four cycles of four short beeps
One short beep, pause, three short beeps, pause, three
more short beeps, pause, and one short beep
Three short beeps, pause, one short beep, pause, one
more short beep, pause, and three short beeps
Five short beeps
One long and two short beeps
Five short beeps, pause, five short beeps, and pause
No-beep symptoms
Table 5. 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. Replace the fan.
2. Apply thermal grease.
3. Replace the system board.
Replace the system board.
Replace the battery.
FRU or action, in sequence
Replace the system board.
1. Replace the memory module.
2. Replace the system board.
Remove the device from ExpressCard slot.
Replace the system board.
Replace the system board.
Replace the system board.
FRU or action, in sequence
1. Ensure that every connector is connected tightly
and correctly.
2. Reseat memory module.
3. Replace the system board.
1. Reseat memory module.
2. Replace the 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.
Chapter 4
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Related service information
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