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microchip burned of motherboard IPISB-AB

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    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!?
    Attached Files

    #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

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      #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

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        #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

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          #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.

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            #6
            Re: microchip burned of motherboard IPISB-AB

            can you share bios bin for this type sir?

            my IPISB-AB has blank.

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              #7
              Re: microchip burned of motherboard IPISB-AB

              Originally posted by adam__7 View Post
              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:

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                #8
                Re: microchip burned of motherboard IPISB-AB

                That burned ic is 6679as

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