DA0U36MB6D0 rev D

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  • pippo_one
    Senior Member
    • Aug 2010
    • 117
    • Vicenza
    #1

    DA0U36MB6D0 rev D

    Hi everyone, I have a problem with my Hp15-B040SL
    with a main DA0UMB6D0 rev D, when I turn it on I have no signal on the screen and after 10/15 sec the fan starts spinning at maximum rpm but remains on.
    can someone give me a hand to solve the problem?
    I previously downloaded the wiring diagram and some published bios.
    from the diagrams this mainb appears to have 2 spi U10 for EC (ENE) and U22 bios
    Can anyone guide me in researching this problem?
    Thank you IN ADVANTAGE
    Tags: None
    • rediii
      h???, spurrrn
      • Mar 2018
      • 487
      • somewhere in europe
      #2
      Re: DA0U36MB6D0 rev D

      vcore-rails present, if so most likely it's the bios itself that went bad? please post your old bios then
      Last edited by rediii; 03-07-2022, 06:48 AM.

        Comment

        • pippo_one
          Senior Member
          • Aug 2010
          • 117
          • Vicenza
          #3
          Re: DA0U36MB6D0 rev D

          "vcore-rails present" please explain to me it means, sorry I'm a beginner, you can follow me step by step.
          now I am at work outside my city ... Saturday I remove the bios chip "U22", you confirm that this is the main bios chip and with EPZ2019 I try to read and save the bios.
          Thank you

            Comment

            • rediii
              h???, spurrrn
              • Mar 2018
              • 487
              • somewhere in europe
              #4
              Re: DA0U36MB6D0 rev D

              Originally posted by pippo_one
              "vcore-rails present" please explain to me it means, sorry I'm a beginner, you can follow me step by step.
              now I am at work outside my city ... Saturday I remove the bios chip "U22", you confirm that this is the main bios chip and with EPZ2019 I try to read and save the bios.
              Thank you
              you need to measure the voltage on big the big "grey" coils near the cpu in voltage mode with a multimeter OR check, if the cpu gets warm (while ON)... but this is note really precise. post bios file here then

                Comment

                • pippo_one
                  Senior Member
                  • Aug 2010
                  • 117
                  • Vicenza
                  #5
                  Re: DA0U36MB6D0 rev D

                  Hi, the cpu is cold and I don't detect any voltage at the coil "PL17" "+ VCC core". I'll post the bios obtained.
                  Thank you
                  Last edited by SMDFlea; 03-12-2022, 08:59 AM. Reason: This aint the bios requests forum.Bios removed.

                    Comment

                    • SMDFlea
                      Super Moderator
                      • Jan 2018
                      • 20747
                      • UK
                      #6
                      Re: DA0U36MB6D0 rev D

                      Originally posted by pippo_one
                      Hi, the cpu is cold and I don't detect any voltage at the coil "PL17" "+ VCC core". I'll post the bios obtained.
                      Thank you
                      Bios requests go here: https://www.badcaps.net/forum/forumdisplay.php?f=40
                      All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

                        Comment

                        • pippo_one
                          Senior Member
                          • Aug 2010
                          • 117
                          • Vicenza
                          #7
                          Re: DA0U36MB6D0 rev D

                          Originally posted by SMDFlea
                          Bios requests go here: https://www.badcaps.net/forum/forumdisplay.php?f=40
                          I'm sorry I have to open a new post for the bios at the address you gave me?

                            Comment

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