MSI B450 Gaming Pro Carbon AC MS-7B85 rev 1.1 schematic and/or boardview, seeking help.

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  • Yagers
    New Member
    • Feb 2024
    • 6
    • United States

    #1

    MSI B450 Gaming Pro Carbon AC MS-7B85 rev 1.1 schematic and/or boardview, seeking help.

    My motherboard has recently gone out. Seems to be something on the VSB circuits, which I was already suspicious as I went through 5 PSU's in 5 years, most of which had damaged VSB circuits, but It stopped working a week ago, I thought it was the PSU again, but a new one didn't remedy the no start, I walked away with it hooked up and came back in and it was on and running all on its own, shut it down and it wouldn't turn on again, after about 5 button presses it turned on and worked fine until this sunday, It wouldnt start, so I tried swapping psu's, I then noticed a slight whine, and noticed the Bios flashback LED was faintly illuminating, and over time while messing with it, the light got brighter, but the illumination stayed random and the whine disappeared, so I think I have an Idea of where to look, but I don't think theres anyway I could fix it without a schematic, I have one for a similar board so I kinda understand the operation but, I know I'm not gonna find it without the exact schematic or boardview for this Mobo, So please

    If anyone could share the boardview or a schematic for a MS-7B85 rev 1.1 I would be very grateful. So, if anyone has either and is willing to share it with me, or anything at all that would help me diagnose and repair the board I would really appreciate the help! It's from my first build ever, and I don't have the means to replace it, I would really like to repair it if at all possible.
  • Rezistor
    Badcaps Veteran
    • Jun 2021
    • 308
    • USSR

    #2
    Schematic
    Attached Files

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    • Yagers
      New Member
      • Feb 2024
      • 6
      • United States

      #3
      Originally posted by Rezistor
      Schematic
      Thank you!!! You are awesome!

      Comment

      • Yagers
        New Member
        • Feb 2024
        • 6
        • United States

        #4
        Thanks to the Schematic I know which connections/components to check, but I'm not sure of their location on the board, and the traces are hard to follow, the board and the traces are both black so it's really hard to follow them, If anyone has the boardview file I would really appreciate it!

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        • Gilbert Halasan
          Just New Here
          • Nov 2024
          • 4
          • philippines

          #5
          boardview
          Attached Files

          if you find these attachements useful please consider making a small donation to the site

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