Thinkpad X1 Carbon 2nd gen missing bios chip

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  • tomrlopes
    Member
    • Sep 2011
    • 15
    #1

    Thinkpad X1 Carbon 2nd gen missing bios chip

    I don't know the history of this. I bought it from someone as parts. His story was that it just quit one day and it put it away in the closet and now he is selling (I guess I paid too much.)

    Pushing the power button would light up and backlight on the touchbar (I don't remember now if the lcd backlight comes on)

    LMQ-1 12298-2

    CPU is i7-4600U

    I pull out the board and notice there is no bios chip! Schematic has two bios chips 8mb and 4mb.

    How do I figure out which one?
    Attached Files
    Tags: None
    • ktmmotocross
      Boardkiller
      • Feb 2014
      • 3610
      • slovakia
      #2
      Re: Thinkpad X1 Carbon 2nd gen missing bios chip

      what u need to figure?

      it is u49 and in your schem it is 8MB chip W25Q64FVSSIQ-GP

        Comment

        • tomrlopes
          Member
          • Sep 2011
          • 15
          #3
          Re: Thinkpad X1 Carbon 2nd gen missing bios chip

          Originally posted by ktmmotocross
          what u need to figure?

          it is u49 and in your schem it is 8MB chip W25Q64FVSSIQ-GP
          Ok Thanks.

          I wrote 8mb or 4mb but it is actually 8MB or 16MB in the schematic.
          I don't know what "vpro" is, so was unsure if the board needed it.

            Comment

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