Dell Precision 3450 small form factor - BIOS cannot be opened in FIT - please help clean

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  • MMH3
    Member
    • May 2024
    • 14
    • Germany

    #1

    Dell Precision 3450 small form factor - BIOS cannot be opened in FIT - please help clean

    Hello,

    i would appreciate, if someone could help me.


    DELL: 3450 sff
    Servicetag: (!) obviously FAKE - ABC2345

    Mainboard: 0GK35Y - serial /ABC2345/CNFCW0023800L6/
    Chipset: Intel W580 (Rocket Lake PCH-H)
    BIOS: 1.34.1
    ME: 15.0.50.2633

    mor data can be found the HW-Info-data in the rar-file


    I have this BIOS from a DELL Precision 3450 SmallFormFactor mainboard i bought refurbished.. from china.
    The board itself works without any issues.

    My goal was to clean the ME of this and fully activate vPro KVM, as at the moment the board has only AMT-Basic without KVM.

    I have done this often before, usually without issues.

    The attached BIOS-File is a pure desoldered "chip-off" dump. It is one of three, which are all identcally compared each in HexEditor. It is Version 1.34.

    Obiously the ME is Version 15.0.50.2633. as shown in the attached MEA-info

    But nevertheless, when i try open it with five different FIT-Version 15.xx.xx.xxxx i am getting a lot of errors, and only two files are decompiled.

    Additionally, i already have an error when doing the MEA-Info.
    This error states that there is a file which not can be parsed.?

    "Error: Detected MFS Low Level File 1952 which has not been parsed!"

    Am i doing something wrong?
    What is the matter with this BIOS that it can not be opened in FIT ?
    What is that message about a "file", which on further analyse in UEFI-tool leads to a padding area "usually" empty. ??

    I had one other machine, same type, same ME Version, no issues, no such "unknown file"..

    I already tried the method of replacing the EFS/MFS with the unpacked stock versions, as decribed in a post with the similar machine 7090 with the same problem.
    But no real success..
    After replacing EFS and MFS, i can open in FIT, but in the end, the BIOS with only EFS/MFS replaced, is not accepted by the board. it refuses to power up at all. Only amber led only on press button.
    When i further try ME-cleaning this EFS/MFS replaced BIOS, the board powers up, but give me a "amber/white - 3/6 corrupted bios" error.


    Also this machine has obviously a "fake"-servicetag "ABC2345"
    The MAC is 74-86-E2-1B-67-AB
    (which i also think is a fake, due to the same pattern, just using "AB" for the last two digits. But this would not be relevant. As the machine works at the moment with this MAC)

    Could somebody be so kind and fully clean this weird BIOS for me.
    Best would be, to have it completely back in "manufacturing-mode", as the servicetag is a totally useless fake.
    Supergreat would be, ME with all vPro options active including KVM.

    Alternatively somebody could help me with detailed advice, how to manage all this myself.
    Attached Files
  • hoaca388
    Badcaps
    • Jan 2022
    • 12043
    • Socialist Republic of Vietnam

    #2
    Precision 3450 Small Form Factor
    MAC : 74-86-E2-1B-67-AB
    Attached Files


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