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    IBM T400 turns on then off

    Discussion in 'Lenovo' started by mike92154, Apr 25, 2010.

  1. mike92154

    mike92154 Newbie

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    When i connect the charger to the T400 the laptop turns on for 3-4 seconds and then shuts down.It keeps doing this until i remove the charger from the laptop.No video appears on screen.I know it's not the charger because i used my friends working charger.Help please!!!!!
     
    mike92154, Apr 25, 2010
    #1
  2. lead_org

    lead_org Purveyor of Truth

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    does this behaviour occur on battery?
     
    lead_org, Apr 25, 2010
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  3. Greg

    Greg Notebook Nobel Laureate

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    It might not help, but it might. Remove the battery and AC source, and hold down the power button for 60 seconds. Try turning the notebook back on after reconnecting the AC by itself.
     
    Greg, Apr 25, 2010
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  4. mike5065

    mike5065 Notebook Consultant

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    Do you get any beep sequences when starting using AC?
     
    mike5065, Apr 25, 2010
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  5. mike92154

    mike92154 Newbie

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    The battery is dead.I removed the battery and charger and hold down the power button for 5 minutes.It didn't work.No beeps.I think the motherboard has a short.
     
    mike92154, Apr 28, 2010
    #5
  6. naton

    naton Notebook Virtuoso

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    Have you tried with the charger and without the battery?

    Could be that you have a faulty charger too! Is your laptop still under warranty? if it is you should get in touch with Lenovo to fix it for you :)
     
    naton, Apr 28, 2010
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  7. lead_org

    lead_org Purveyor of Truth

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    take out the ram and restart the laptop does it beep?
     
    lead_org, Apr 28, 2010
    #7