Boards 12291-2 1
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4 files
  • MEC1633 w540
    BIOS · 192 KB · 6 May 2025
    BIOS bin
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    ShareMan_Electronic_Files
    192 KB
  • MEC1633 w540

    RAR archive of 101 KB holding embedded controller firmware for the Lenovo ThinkPad W540, built around the Microchip/SMSC MEC1633 keyboard and power controller.

    Archive · 101 KB · 1 Aug 2022
    Archive rar
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    SCHEMATICWORLD
    101 KB
  • MEC1633 W540 12291-2.bin

    EC firmware image in a ZIP of 108 KB for the Lenovo ThinkPad W540, meant for the MEC1633 embedded controller on board 12291-2, a Wistron-designed motherboard number.

    BIOS · 12291-2 · 108 KB · 1 Aug 2022
    BIOS zip
    12291-2
    SCHEMATICWORLD
    108 KB
  • MEC W540.bin

    Zipped binary of 108 KB labelled as MEC firmware for the Lenovo ThinkPad W540, referring to the MEC1633 embedded controller that runs power-on sequencing, battery and…

    BIOS · 108 KB · 1 Aug 2022
    BIOS zip
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    SCHEMATICWORLD
    108 KB