Lenovo THINKPAD T41/T41P User Manual download pdf (Page 69)

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 58.

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

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.

The DOS full screen looks

smaller than it should.

Start the ThinkPad

Configuration program and set

the Screen expansion

function.

Symptom-to-FRU index

ThinkPad T40/T40p, T41/T41p, T42/T42p Series 63

1 2 ... 64 65 66 67 68 69 70 71 72 73 74 ... 259 260

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