LA-6911P discrete to UMA

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  • piernov
    Super Moderator
    • Jan 2016
    • 4435
    • France
    #1

    LA-6911P discrete to UMA

    Hi,

    Acer 7750G, board Compal LA-6911P with (obviously) a dead 216-081005.
    Does anyone know the procedure to convert from discrete to UMA? Couldn't find any info on the web, schematics is available and lists the different BOM options, but there are no boardview. I could figure out some resistors and stuff but maybe not all of them, and I don't know if there it something else to mess with.

    The board is configured for discrete and LVDS (not eDP).


    Thanks;
    OpenBoardView — https://github.com/OpenBoardView/OpenBoardView
    Tags: None
    • caspian
      Badcaps Legend
      • Oct 2015
      • 1589
      • Laptop
      #2
      Re: LA-6911P discrete to UMA

      since there is no tutorial on this, you should go forward using the try&error method. first move R609 to R610 and R396 to R401. I guess these two movements might be enough. If not so, try some other options too.
      to find the resistors, take a look at this Russian page:

      translate.googleusercontent.com/translate_c?depth=1&hl=en&prev=search&rurl=translate.google.com&sl=ru&sp=nmt4&u=https://ascnb1.ru/forma1/viewtopic.php%3Ff%3D231%26t%3D96097%26start%3D0&xid=17259,15700021,15700186,15700190,15700248,15700253&usg=ALkJrhj-YsT5pJl6uSjx_rmaey_F2-HWuA

      it may help.
      In addition, I heard some revisions of LA-6911P are different from the schematics.
      Last edited by caspian; 02-15-2019, 02:13 PM.

        Comment

        • alderick
          Senior Member
          • Jun 2015
          • 74
          • france
          #3
          Re: LA-6911P discrete to UMA

          Hello,

          I would like to know if you had any success with that modification?
          I have the same board with a dying GPU and I want to go to UMA too.

          Thanks.

            Comment

            • piernov
              Super Moderator
              • Jan 2016
              • 4435
              • France
              #4
              Re: LA-6911P discrete to UMA

              Unfortunately not, not enough information on the Internet about this one. From a quick look at the schematics, it looked like there was a lot of components to swap (resistors to connect LVDS/VGA connectors to PCH instead of GPU and other stuff).
              I ended up buying a UMA only board, sold as defective but it was actually working. For 20€ it was definitely not worth wasting time to try to convert the original board to UMA and probably fail.
              OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

                Comment

                • alderick
                  Senior Member
                  • Jun 2015
                  • 74
                  • france
                  #5
                  Re: LA-6911P discrete to UMA

                  Ok thank you.
                  I'm not going to wasting my time so

                    Comment

                    • Abdulrahman
                      New Member
                      • Apr 2019
                      • 9
                      • turkye
                      #6
                      Re: LA-6911P discrete to UMA

                      https://www.youtube.com/watch?v=q8VcDjJbU-A

                        Comment

                        • alrep
                          New Member
                          • Sep 2017
                          • 8
                          • Russia
                          #7
                          Re: LA-6911P discrete to UMA

                          Rh551---rh552
                          rh553---rh554

                            Comment

                            • highpulse
                              i hate HP
                              • May 2013
                              • 1488
                              • portugal
                              #8
                              Re: LA-6911P discrete to UMA

                              edited post :
                              Last edited by highpulse; 08-16-2021, 10:22 AM.

                                Comment

                                • pablobuma
                                  New Member
                                  • May 2014
                                  • 3
                                  • argentina
                                  #9
                                  Re: LA-6911P discrete to UMA

                                  https://www.youtube.com/watch?v=sNqIhNyINCA

                                    Comment

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