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      Beep and No beep symptoms - ThinkPad T510, T510i, W510

      Beep symptoms
      Symptom or errorFRU 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.Click here to diagnose the error code
      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 errorFRU 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.

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      • Alias ID: MIGR-74394
      • Document ID: HT001739
      • Last Updated :17 Jun 2014
      • © 2015 Lenovo