microchip burned of motherboard IPISB-AB

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  • adam__7
    Adam
    • Dec 2013
    • 7
    • USA
    #1

    microchip burned of motherboard IPISB-AB

    Hi everybody, I have a problem with an All-in-one computer motherboard yesterday I opened my Pavilion 20 and found something, some simple but sad, a single piece was burned I think due to a overcharged.
    The main problem to me is the microchip is half burned and only have the legend "44D7A" besides the schematic o diagram is not on web, I searched the motherboard model IPISB-AB and only founded some pictures.
    Some could help me whith!?
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    • Khron
      Badcaps Legend
      • Sep 2006
      • 1350
      • Finland
      #2
      Re: microchip burned of motherboard IPISB-AB

      Judging by the apparent pinout, and the proximity to the power input, i'm willing to bet it's some P-channel MOSFET.

      The "44D7A" is more likely "4407A", which would indicate it's one of these:

      Before replacing it though, it would be best to try to track down WHY it failed - just replacing it might blow something (more), "downstream".
      Khron's Cave - Electronics - Audio - Teardowns - Mods - Repairs - Projects - Music - Rants - Shenanigans

        Comment

        • adam__7
          Adam
          • Dec 2013
          • 7
          • USA
          #3
          Re: microchip burned of motherboard IPISB-AB

          Thanks a lot, this data is very usefull, I am going to replace it and check out all motherboard before turn on the laptop

            Comment

            • Khron
              Badcaps Legend
              • Sep 2006
              • 1350
              • Finland
              #4
              Re: microchip burned of motherboard IPISB-AB

              After you remove it, check for shorts on both sides.
              Khron's Cave - Electronics - Audio - Teardowns - Mods - Repairs - Projects - Music - Rants - Shenanigans

                Comment

                • DjKrish
                  Badcaps Veteran
                  • Oct 2012
                  • 354
                  • SG
                  #5
                  Re: microchip burned of motherboard IPISB-AB

                  Dont forget to check your power adapter too if its faulty or supplying over voltage or its short to burn the chip. As khron666 said, check all other possibilities before changing the chip to test.

                    Comment

                    • antskull
                      Member
                      • Aug 2017
                      • 17
                      • jakarta
                      #6
                      Re: microchip burned of motherboard IPISB-AB

                      can you share bios bin for this type sir?

                      my IPISB-AB has blank.

                        Comment

                        • serrano
                          New Member
                          • Sep 2020
                          • 1
                          • colombia
                          #7
                          Re: microchip burned of motherboard IPISB-AB

                          Originally posted by adam__7
                          Hi everybody, I have a problem with an All-in-one computer motherboard yesterday I opened my Pavilion 20 and found something, some simple but sad, a single piece was burned I think due to a overcharged.
                          The main problem to me is the microchip is half burned and only have the legend "44D7A" besides the schematic o diagram is not on web, I searched the motherboard model IPISB-AB and only founded some pictures.
                          Some could help me whith!?
                          4407A OK:novato:

                            Comment

                            • hope1914
                              Member
                              • Oct 2020
                              • 14
                              • nigeria
                              #8
                              Re: microchip burned of motherboard IPISB-AB

                              That burned ic is 6679as

                                Comment

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