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
  • 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
            • 20731
            • 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
              I'm sorry I have to open a new post for the bios at the address you gave me?

              Comment

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