simple BIOS question !!

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  • guizmo1967
    Senior Member
    • Sep 2022
    • 75
    • Canada

    #1

    simple BIOS question !!

    Hello,

    I have a Dell Latitude 5501 (LA-H181P) and I read the BIOS chip with CH341A.

    The file is 1,048,576 byte, every BIOS dumps I see on this forum are much bigger ?? Maybe I'm not reading the right chip ???

    The one I'm reading is a GIGADEVICE 5Q80CSIG (datasheet, 8M-bit Serial Flash).

    What is wrong ????

    Thank you.
    Last edited by guizmo1967; 04-11-2023, 08:22 PM.
  • mcplslg123
    Badcaps Legend
    • Jun 2015
    • 7262
    • india

    #2
    Re: simple BIOS question !!

    GIGADEVICE 5Q80CSIG-chip size is 1MB and so it cant be your bios chip.Maybe thunderbolt or some thing else firmware. Look for chip with 64MB,128MB or 256MB

    Comment

    • down1nit
      Member
      • Oct 2016
      • 29
      • USA

      #3
      Re: simple BIOS question !!

      W25Q256JV
      or
      W25Q128JV
      should be the markings on the chip. Perhaps labeled on the masking as UC5 or UC6 respectively

      Comment

      • guizmo1967
        Senior Member
        • Sep 2022
        • 75
        • Canada

        #4
        Re: simple BIOS question !!

        Originally posted by mcplslg123
        GIGADEVICE 5Q80CSIG-chip size is 1MB and so it cant be your bios chip.Maybe thunderbolt or some thing else firmware. Look for chip with 64MB,128MB or 256MB
        Aaaaah that's why when I view the file with an Hex Editor, it was written somewhere on the right this:

        01.00.00.TPS65982DD.Texas Intruments.HTTP://www.ti.com/product/
        TPS65982DD.Thunderbolt Mode Entry Error.HTTP://help.vesa.org/
        dp-usb-type-c

        Comment

        • guizmo1967
          Senior Member
          • Sep 2022
          • 75
          • Canada

          #5
          Re: simple BIOS question !!

          I found another GIGADEVICE chip, it's a GD25B256DYIG

          256M-bit serial flash chip or 32M-byte. It is more likely the bios chip !!

          Comment

          • Vesko356
            VIP Moderator
            • Aug 2018
            • 4386
            • Bulgaria 🇧🇬

            #6
            Re: simple BIOS question !!

            Originally posted by guizmo1967
            I found another GIGADEVICE chip, it's a GD25B256DYIG

            256M-bit serial flash chip or 32M-byte. It is more likely the bios chip !!
            Yes, it is.
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