Help me! XFX DD R9 280X

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  • dogu06
    Member
    • May 2019
    • 33
    • Türkiye
    #1

    Help me! XFX DD R9 280X

    Hello. Ic Q19 is missing on my video card. Can you say the name of the part of Q19 ic?
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    • dragos2009
      Senior Member
      • Mar 2013
      • 110
      • Romania
      #2
      Re: Help me! XFX DD R9 280X

      i might be wrong but that chip probably (more than sure ) has to be the Vbios chip of the card

        Comment

        • R_J
          Badcaps Legend
          • Jun 2012
          • 9624
          • Canada
          #3
          Re: Help me! XFX DD R9 280X

          Since it is listed as Q19 I suspect it could be a mosfet, check if any of the pads are connected together. If it was an IC it would likely be listed with a "U" like U300 above it
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          Last edited by R_J; 04-02-2020, 01:12 PM.

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            • dogu06
              Member
              • May 2019
              • 33
              • Türkiye
              #4
              Re: Help me! XFX DD R9 280X

              Originally posted by R_J
              Since it is listed as Q19 I suspect it could be a mosfet, check if any of the pads are connected together. If it was an IC it would likely be listed with a "U" like U300 above it
              Hello. Thank you, I solved the problem and you answered correctly. Double mosfet connected to the U702 (APW7165C) controller.

                Comment

                • R_J
                  Badcaps Legend
                  • Jun 2012
                  • 9624
                  • Canada
                  #5
                  Re: Help me! XFX DD R9 280X

                  Good to here it is repaired, and thanks for the follow up.

                    Comment

                    • dogu06
                      Member
                      • May 2019
                      • 33
                      • Türkiye
                      #6
                      Re: Help me! XFX DD R9 280X

                      But I have another problem. The U900 (uP1509P) supply voltage is not output. Mosfets are solid, but I can't test the U900 without datasheets!

                        Comment

                        • R_J
                          Badcaps Legend
                          • Jun 2012
                          • 9624
                          • Canada
                          #7
                          Re: Help me! XFX DD R9 280X

                          I did some checking and the uP6122 seems to be the same pinout. Also this manual has a uP1509, PU9 on Page 90
                          Attached Files

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                          Last edited by R_J; 04-11-2020, 07:22 PM.

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                            • dogu06
                              Member
                              • May 2019
                              • 33
                              • Türkiye
                              #8
                              Re: Help me! XFX DD R9 280X

                              Thank you my friend. I will check it as soon as possible. I'm happy

                                Comment

                                • dogu06
                                  Member
                                  • May 2019
                                  • 33
                                  • Türkiye
                                  #9
                                  Re: Help me! XFX DD R9 280X

                                  Originally posted by R_J
                                  I did some checking and the uP6122 seems to be the same pinout. Also this manual has a uP1509, PU9 on Page 90
                                  I couldn't run it and I need help.
                                  Attached Files

                                  if you find these attachements useful please consider making a small donation to the site

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