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      How to release stored charges

      SYMPTOM:

      The computer is power on, but there is no display on the screen.

      AFFECTED CONFIGURATIONS:

      The above symptom may occur on the following systems:

      All Idea desktops and laptops

      SOLUTION:

      There are many capacitors in the computer, which can store charges. Occasionally, stored charges cause the computer to not boot normally. The following steps will fix this problem.

      1. For desktop, power off the computer, and unplug the power cable of the computer.

      For laptop, power off the computer, unplug the adapter and remove the battery.

      2. Press the power button 3-4 times; hold it for 1 second every time. Ensure that there is a 1-2 second interval in between every time.

      3. Plug back the power cable and then power on the computer.

      If the problem still exists, please contact your nearest Lenovo Help Center.

       

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      • Alias ID: 1264128043189
      • Document ID: HT062584
      • Last Updated :26 Mar 2014
      • © 2016 Lenovo