DA0R62MB6E0 REV: E +VCC GFX Missing

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  • Techtiger
    Badcaps Legend
    • Oct 2014
    • 1601
    • france

    #1

    DA0R62MB6E0 REV: E +VCC GFX Missing

    Guys need help
    got here a problem with this MotherBoard

    DA0R62MB6E0 REV: E
    Hp 17-e047sf
    INTEL
    KBC ENEKB3940QF A1

    laptop starts up but no image found out missing voltage

    PL37 0V +VCC GFX Missing
    PL37 IN DIODE MODE 0.965 fluctuation
    PL37 in Ohms 23.00 K Ohms fluctuation

    PU17 IC

    Pin1 5V Pin5 0V
    Pin2 1.9V Pin6 0V
    Pin3 4.8V Pin7 0V
    Pin4 5V Pin8 0V

    I have flash bios with one I found in Bedcaps but MB not power up with that bios
    I have uploaded my old bios bin can someone look in to it PL whether it corrupted and need bios for this board
    Attached Files
    Last edited by Techtiger; 03-16-2018, 02:48 AM.
  • Techtiger
    Badcaps Legend
    • Oct 2014
    • 1601
    • france

    #2
    Re: DA0R62MB6E0 REV: E +VCC GFX Missing

    the bios i found in Badcaps and the Schematic
    Attached Files

    Comment

    • Techtiger
      Badcaps Legend
      • Oct 2014
      • 1601
      • france

      #3
      Re: DA0R62MB6E0 REV: E +VCC GFX Missing

      schematic Pic

      two bios chips Guys in the MOB
      Attached Files
      Last edited by Techtiger; 03-16-2018, 01:56 AM.

      Comment

      • piernov
        Super Moderator
        • Jan 2016
        • 4435
        • France

        #4
        Re: DA0R62MB6E0 REV: E +VCC GFX Missing

        You uploaded the wrong BIOS. The SPI ROM you need to backup/flash is U31. File size is 4MB.
        OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

        Comment

        • Techtiger
          Badcaps Legend
          • Oct 2014
          • 1601
          • france

          #5
          Re: DA0R62MB6E0 REV: E +VCC GFX Missing

          Ok i will update soon

          Comment

          • appasa
            New Member
            • Nov 2016
            • 5
            • india

            #6
            Re: DA0R62MB6E0 REV: E +VCC GFX Missing

            la c811p ec bios needed please help

            Comment

            • Techtiger
              Badcaps Legend
              • Oct 2014
              • 1601
              • france

              #7
              Re: DA0R62MB6E0 REV: E +VCC GFX Missing

              piernov here is the BIOS From
              U31 Chip
              thanks
              Attached Files

              Comment

              • mcplslg123
                Badcaps Legend
                • Jun 2015
                • 7262
                • india

                #8
                Re: DA0R62MB6E0 REV: E +VCC GFX Missing

                Dear techtiger, i too faced this missing gfx core issue on this same mb. I tried all the dumps avlbl at badcaps and some other dumps sourced from net. But unfortunately none worked. The only bios which worked is HP official update. You need to carefully extract your 4mb bios from that update file with hex editor. If you face difficulty doing that then let me know. I'll extract it for you.

                PS:You will need to use HP bcu utility and dmitolls to fix the serial no etc with hp official bios.

                Comment

                • Techtiger
                  Badcaps Legend
                  • Oct 2014
                  • 1601
                  • france

                  #9
                  Re: DA0R62MB6E0 REV: E +VCC GFX Missing

                  Dear Mcplsld123
                  Thanks for all that information (extract bios/Hp bcu utility/dmitolls )

                  Comment

                  • pyry
                    Member
                    • Dec 2015
                    • 37
                    • Mexico

                    #10
                    Re: DA0R62MB6E0 REV: E +VCC GFX Missing

                    your problem has nothing to do with the bios
                    the IC PU17 has all the voltages necessary for it to work
                    the problem is the IC PU17 that is bad or has a short to the output
                    or either of the two mosfets

                    Comment

                    • Techtiger
                      Badcaps Legend
                      • Oct 2014
                      • 1601
                      • france

                      #11
                      Re: DA0R62MB6E0 REV: E +VCC GFX Missing

                      PYRY thanks for the reply i have test the 2 Mosfets they are good ,after the MAiIN Bios flash last option PC17 but i will wait

                      Comment

                      • shayanblack
                        Member
                        • Mar 2018
                        • 16
                        • sri lanka

                        #12
                        Re: DA0R62MB6E0 REV: E +VCC GFX Missing

                        Hi i want to know if you resolve this gfx missing problem by after update the main bios ?please help me beacuse i have the same problem...

                        Comment

                        • Techtiger
                          Badcaps Legend
                          • Oct 2014
                          • 1601
                          • france

                          #13
                          Re: DA0R62MB6E0 REV: E +VCC GFX Missing

                          Originally posted by shayanblack
                          Hi i want to know if you resolve this gfx missing problem by after update the main bios ?please help me beacuse i have the same problem...
                          IC PU17 was faulty

                          Comment

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