Clevo W25CEW doesn't save Bios settings / shutdown issue

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  • Conste
    Badcaps Veteran
    • Oct 2018
    • 235
    • Germany
    #1

    Clevo W25CEW doesn't save Bios settings / shutdown issue

    Hello together,

    I have a Clevo W25CEW (Terra 1541) with some strange symptoms:

    1. I cannot save Bios settings by pressing "save settings" in the bios. By pressing "save & exit" it will save the settings.

    2. I can boot normally (UEFI installation), but when I shut the machine down and start it after a few seconds again it will show resume from hibernation and shutdown after POST, just before windows would boot. Then it will go back to factory settings and my UEFI installation will not boot!

    Already changed the CMOS battery to a full one (3,177v) and the battery.
    Latest bios was flashed by using DOS.
    Changed CPU from i5-3230 to i3-3120.

    Issue does not seem to happen with connected charger, just when botting from battery.

    Any suggestions? Could it be a faulty EEPROM?

    Also charge rate is shown, but not the discharge rate of the battery (HWInfo). So remaining time is also not shown.
    Last edited by Conste; 09-01-2021, 10:45 AM.
    Tags: None
    • budiex
      New Member
      • Jul 2021
      • 9
      • Chile
      #2
      Re: Clevo W25CEW doesn't save Bios settings / shutdown issue

      This was seen a long time ago, it was almost always related to the cpu clock, to solve it a small Overcloking was done from the bios to the cpu (trial and error), it was increased by +1mhz until it stopped failing, nowadays I don't know if this is still working.
      Another thing you can try is putting the processor that was changed and check if the failure persists, if this is solved could say 90% sure that it is a problem of cpu frequencies.
      Also this error was given by not properly configure the bios, date, time, boot, etc. ...
      Last edited by budiex; 09-01-2021, 12:20 PM.

        Comment

        • Conste
          Badcaps Veteran
          • Oct 2018
          • 235
          • Germany
          #3
          Re: Clevo W25CEW doesn't save Bios settings / shutdown issue

          Hmm right now it will keep the date and time but shutdown before windows boots and forget about UEFI...

            Comment

            • mcplslg123
              Badcaps Legend
              • Jun 2015
              • 7262
              • india
              #4
              Re: Clevo W25CEW doesn't save Bios settings / shutdown issue

              Lidsw??

                Comment

                • Conste
                  Badcaps Veteran
                  • Oct 2018
                  • 235
                  • Germany
                  #5
                  Re: Clevo W25CEW doesn't save Bios settings / shutdown issue

                  Originally posted by mcplslg123
                  Lidsw??
                  How to check it?

                    Comment

                    • Conste
                      Badcaps Veteran
                      • Oct 2018
                      • 235
                      • Germany
                      #6
                      Re: Clevo W25CEW doesn't save Bios settings / shutdown issue

                      Attached the schematics
                      Attached Files

                        Comment

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