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UMC UM8881F datasheet needed

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    UMC UM8881F datasheet needed

    Hello,

    I would highly appreciate if someone has in reach a datasheet for this IC. It's about the UMC UM8881F

    Thank you very much.

    Alex.

    #2
    Re: UMC UM8881F datasheet needed

    it's paired with the UM8886 to create the chipset for a 486 motherboard.
    why do you need it?

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      #3
      Re: UMC UM8881F datasheet needed

      Hi, thanks for the reply,. Yes indeed that's the case. I am rebuilding this 486 motherboard and i have a broken pin on this IC and i want to know what's used for, maybe i can get away with it.

      Thank you very much for your kindness.

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        #4
        Re: UMC UM8881F datasheet needed

        you would have more luck searching for a 486 motherboard schematic i suspect.
        if you feel the need, you could grind the package down and solder a link to the stub.

        this used to be done a lot on wii console dvd drives.
        Attached Files

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          #5
          Re: UMC UM8881F datasheet needed

          yes a schematic would do fine also. But can you instruct me to a place were they have desktop boards schematics? The vast majority are keeping laptop MB schematics which it's fine, but on the desktop side i found the ice to be quite thin ...

          I really appreciate your help. Thank you.

          P.S. nice guide you shared thank you.
          Last edited by nicolae788; 06-13-2015, 01:58 AM.

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            #6
            Re: UMC UM8881F datasheet needed

            maybe there are 486 based laptops?

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              #7
              Re: UMC UM8881F datasheet needed

              Yes, i could search for a 486 laptop schematic that used this same chipset...thank you ! However finding 486 laptop MB schematics won't be so easy, i presume. But in the likely event that i will not find the schematic, grinding the IC looks feasible.
              Last edited by nicolae788; 06-13-2015, 02:37 AM.

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