Error Messages; Beep Symptoms; No-Beep Symptoms - Lenovo ThinkPad Edge E120 Hardware Maintenance Manual

Error messages

Table 3. Error messages
Symptom or error (beeps, if any)
Fan error.
Thermal sensing error.
This system does not support batteries that are not
genuine Lenovo-made or authorized. This 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
One beep and a blank, unreadable, or flashing LCD.
One long and two short beeps, and a blank or unreadable
LCD.
Two short beeps with error codes.
Two short beeps and a blank screen.
Three short beeps, pause, three more short beeps, and
one short beep.
One short beep, pause, three short beeps, pause, three
more short beeps, and one short beep.
Only the cursor appears.
Four cycles of four short beeps and a blank screen.
Five short beeps and a blank screen.

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.
FRU or action, in sequence
1. Fan.
2. Thermal grease.
3. System board.
System board.
Replace the battery.
FRU or action, in sequence
1. Reseat the LCD connector.
2. LCD assembly.
3. External CRT.
4. System board.
1. System board.
2. LCD assembly.
3. DIMM.
POST error. See "Numeric error codes" on page 38.
1. System board.
2. DIMM.
1. DIMM.
2. System board.
Reinstall the operating system.
System board (security chip)
System board
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.
Chapter 4
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Related service information
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