HP Elitebook 820 G2 - BIOS LOCATION

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  • carlucci
    Senior Member
    • Aug 2012
    • 50
    • Moçambique
    #1

    HP Elitebook 820 G2 - BIOS LOCATION

    Hello, I have a laptop (HP Elitebook 820 G2) on my workbench that came from another computer repair shop and they messed it up.
    They changed the BIOS chips, I can't find the electrical diagram of this motherboard, so I come to ask you, if you can tell me what is the bios chip "model" located on U365 and U366 ?

    Thank you.
    Tags: None
    • RethoricalCheese
      Badcaps Legend
      • Mar 2013
      • 1519
      • Estonia
      #2
      Re: HP Elitebook 820 G2 - BIOS LOCATION

      main is W25Q128FVSQ.

      This is flash chip support list written in my dump:
      20BA18h
      C22018h
      EF4018h
      1C7018h
      C84018h

      Not sure about EC bios model tho.

        Comment

        • carlucci
          Senior Member
          • Aug 2012
          • 50
          • Moçambique
          #3
          Re: HP Elitebook 820 G2 - BIOS LOCATION

          Hi. Thank you for you answer, but I mean, in the board where is located the main bios? in U365 or in U366 ? because someone change the chips.

            Comment

            • carlucci
              Senior Member
              • Aug 2012
              • 50
              • Moçambique
              #4
              Re: HP Elitebook 820 G2 - BIOS LOCATION

              Hello ?!? anyone please.

                Comment

                • marcin02152
                  Senior Member
                  • Oct 2014
                  • 134
                  • Polska
                  #5
                  Re: HP Elitebook 820 G2 - BIOS LOCATION

                  hi
                  main is U365 (25L12873F), EC is U366 (25Q16DVSIG)

                    Comment

                    • Mr.customer
                      New Member
                      • Jan 2021
                      • 5
                      • australia
                      #6
                      Re: HP Elitebook 820 G2 - BIOS LOCATION

                      what is the original main chip and original EC ?

                        Comment

                        • stingerchamp
                          Badcaps Veteran
                          • Sep 2020
                          • 425
                          • Pakistan
                          #7
                          Re: HP Elitebook 820 G2 - BIOS LOCATION

                          Two bios chips

                          One near PCH called main bios

                          One near EC called EC bios , generally we programme KBC


                          In some boards

                          Only one chip PCH near

                          EC bios embedded inside EC

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