Beep symptoms, No-beep symptoms – Lenovo X200 User Manual
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Beep symptoms
Table 4. Beep symptoms
Symptom or error
FRU or action, in sequence
One beep and a blank, unreadable, or
flashing LCD.
1.
Reseat the LCD connector
.
2.
LCD assembly.
3.
External CRT.
4.
System board.
One long and two short beeps, and a blank
or unreadable LCD.
1.
System board
.
2.
LCD assembly.
3.
DIMM.
Two short beeps with error codes.
POST error. See “Numeric error codes” on
page 62.
Two short beeps and a blank screen.
1.
System board
.
2.
DIMM.
Three short beeps, pause, three more short
beeps, and one short beep.
1.
DIMM
.
2.
System board
One short beep, pause, three short beeps,
pause, three more short beeps, and one short
beep.
Only the cursor appears.
Reinstall the operating system
.
Four cycles of four short beeps and a blank
screen.
System board
(security chip)
Five short beeps and a blank screen.
System board
No-beep symptoms
Table 5. 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.
Related service information
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