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    T420 CMOS battery replacement?

    Discussion in 'Lenovo' started by Widows Son, Jun 28, 2015.

  1. Widows Son

    Widows Son Notebook Geek

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    Greetings. I just had a Real Time Clock Error on my laptop; one minute it was booted up & sitting idle, the next I had a black screen with the RTCE msg. When I rebooted the computer the date had set to Dec 2000.

    In the past when I have had clock issue with a PC it was because CMOS battery was failing, although I would expect to get a msg about it before hand while booting up, so I am trying to get myself prepared to replace it should the need arise.

    Can anyone enlighten me as to the location and means to replace it; I am guessing it is under the keyboard somewhere; do I need to remove the palm rest as well?

    TIA

    K
     
    Widows Son, Jun 28, 2015
    #1
  2. ajkula66

    ajkula66 Courage and Consequence

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    ajkula66, Jun 28, 2015
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    Widows Son likes this.
  3. Widows Son

    Widows Son Notebook Geek

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    thanks, much appreciated
     
    Widows Son, Jun 28, 2015
    #3