la-9104p MB 7 Beeps error and no display

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  • Spider1211
    Badcaps Veteran
    • Oct 2019
    • 532
    • Mauritius

    #41
    Re: la-9104p MB 7 Beeps error and no display

    caps in ram area will show low rating
    @mcplslg123 how much is low? I have around 30 Ohms on the mlcc near RAM area.

    Comment

    • piernov
      Super Moderator
      • Jan 2016
      • 4435
      • France

      #42
      Re: la-9104p MB 7 Beeps error and no display

      VCC_AXG_SENSE is connected to +VCC_GFXCORE_AXG inside the CPU.
      VSS_AXG_SENSE is connected to ground inside the CPU.
      OpenBoardView β€” https://github.com/OpenBoardView/OpenBoardView

      Comment

      • Techtiger
        Badcaps Legend
        • Oct 2014
        • 1601
        • france

        #43
        Re: la-9104p MB 7 Beeps error and no display

        another LA-9104P MB with out +VCC_GFXCORE_AXG but the interesting part is the Mob power’s up and working fine how is this possible ?
        INTEL Pentium 2127U

        Comment

        • mcplslg123
          Badcaps Legend
          • Jun 2015
          • 7262
          • india

          #44
          Re: la-9104p MB 7 Beeps error and no display

          If you check with dmm then voltage will appear for a brief second on +VCC_GFXCORE_AXG. You need a scope to check this. Same on dell vegas turis 15341-1 mb.

          Comment

          • Techtiger
            Badcaps Legend
            • Oct 2014
            • 1601
            • france

            #45
            Re: la-9104p MB 7 Beeps error and no display

            Originally posted by mcplslg123
            If you check with dmm then voltage will appear for a brief second on +VCC_GFXCORE_AXG. You need a scope to check this. Same on dell vegas turis 15341-1 mb.
            Your are absolutely correct the voltage rise up 0.864 & Back to 0V is the SOC need to replace?

            Comment

            • mcplslg123
              Badcaps Legend
              • Jun 2015
              • 7262
              • india

              #46
              Re: la-9104p MB 7 Beeps error and no display

              What is the problem you are facing?? You said at post#43-its working fine. Confused??

              Comment

              • Techtiger
                Badcaps Legend
                • Oct 2014
                • 1601
                • france

                #47
                Re: la-9104p MB 7 Beeps error and no display

                for the moment no problem with the Mob, but i have the spair Mob with +VCC_GFXCORE_AXG out put. why one with Voltage out put & with out ?

                Comment

                • mcplslg123
                  Badcaps Legend
                  • Jun 2015
                  • 7262
                  • india

                  #48
                  Re: la-9104p MB 7 Beeps error and no display

                  The one with constant output on +VCC+GFXCORE_AXG is not giving display. Right??

                  Comment

                  • Techtiger
                    Badcaps Legend
                    • Oct 2014
                    • 1601
                    • france

                    #49
                    Re: la-9104p MB 7 Beeps error and no display

                    Originally posted by mcplslg123
                    The one with constant output on +VCC+GFXCORE_AXG is not giving display. Right??
                    Yep that's correct What is the reason for this

                    Comment

                    • mcplslg123
                      Badcaps Legend
                      • Jun 2015
                      • 7262
                      • india

                      #50
                      Re: la-9104p MB 7 Beeps error and no display

                      Dont know the reason but what i've observed on this mb is that there will be no display when
                      01.You have constant voltage on GFX Coil
                      02.When there is No voltage for a brief second on GFX coil.

                      I've noticed the same behaviour on dell 15341-1 MB. Display comes only when there is a voltage on gfx coil for a split second only.

                      Trying to understand why.

                      Comment

                      • Techtiger
                        Badcaps Legend
                        • Oct 2014
                        • 1601
                        • france

                        #51
                        Re: la-9104p MB 7 Beeps error and no display

                        Originally posted by mcplslg123
                        Dont know the reason but what i've observed on this mb is that there will be no display when
                        01.You have constant voltage on GFX Coil
                        02.When there is No voltage for a brief second on GFX coil.

                        I've noticed the same behaviour on dell 15341-1 MB. Display comes only when there is a voltage on gfx coil for a split second only.

                        Trying to understand why.
                        Thanks for the describe in a more detailed way Mcplslg123

                        Comment

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