Beep symptomsSymptomor error FRUor action, in sequence
Onebeep and a blank,
unreadable,or flashing LCD. 1. Reseatthe LCD
connector.
2. LCDassembly.
3. ExternalCRT.
4. Systemboard.
Onelong and two short beeps,
anda blank or unreadable
LCD.
1. Systemboard.
2. LCDassembly.
3. DIMM.
Twoshort beeps with error
codes. POSTerror. See “Numeric
errorcodes”on page41.
Twoshort beeps with blank
screen. 1. Systemboard.
2. DIMM.
Threeshort beeps, pause,
threemore short beeps, and
oneshort beep.
1. DIMM.
2. Systemboard
Onlycursor appears. Reinstalloperating system.
No beep symptomsSymptomor error FRUor action, in sequence
Nobeep, power-on indicator
on,LCD blank, and no POST. 1. Makesure that every
connectoris connected
tightlyand correctly.
2. DIMM.
3. Systemboard.
Nobeep, power-on indicator
on,and LCD blank during
POST.
1. ReseatDIMM.
2. Systemboard.
Nobeep during POST, but
systemruns correctly. Speakerconnection or
speaker.
Thepower-on password
prompt. Apower-on password or a
supervisorpassword is set.
Typethe password and press
Enter.
Thehard-disk password
prompt. Ahard-disk password is set.
Typethe password and press
Enter.
TheDOS full screen looks
smaller. Startthe ThinkPad
Configurationprogram and set
theScreen expansion
function.
Symptom-to-FRUindex