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Gigabyte GTX 1070 - no Vcore, other voltages ok

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    Gigabyte GTX 1070 - no Vcore, other voltages ok

    I have this Gigabyte GTX 1070 that have no Vcore, but other voltages are ok

    any hint? i add measurements
    Attached Files
    Last edited by ktmmotocross; 07-11-2022, 02:16 PM.

    #2
    Re: Gigabyte GTX 1070 - no Vcore, other voltages ok

    Board marking is V17081
    So if anyone have BV or schema i will be greatefull if u upload it and i will post it to BIOS/Schem thread

    Im missing EN signal to uP9511P
    Last edited by ktmmotocross; 07-12-2022, 02:59 AM.

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      #3
      Re: Gigabyte GTX 1070 - no Vcore, other voltages ok

      I think you are losing the signal line of the main power control ic. It's also similar to the gtx 1660. I've had a few cases like that, even though I changed the main control ic, there was no vcore voltage. Fortunately, once I reflowed the gpu, the vcore voltage came back but for 5'. Then lost again. I think, there will be 1 way to the gpu, and from the gpu will generate a feedback command to turn on the power for the central power control ic to work!
      PC work for schemaltic:
      Mainboard: Gigabyte Z68XP-UD4
      CPU: I3-3240
      Ram: 16Gb
      Graphic Card: GTX 1050Ti zotac 4Gb Mini
      SSD: 120Gb
      HDD: 2Tb

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        #4
        Re: Gigabyte GTX 1070 - no Vcore, other voltages ok

        no one makes reflow. only amateurs
        Last edited by ktmmotocross; 07-14-2022, 03:27 PM.

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          #5
          Re: Gigabyte GTX 1070 - no Vcore, other voltages ok

          from datasheet of uP9511p i see that EN pin must be put to ground

          i trace that "dualmosfet" but need to know it datasheet or type
          Attached Files

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            #6
            Re: Gigabyte GTX 1070 - no Vcore, other voltages ok

            Originally posted by ktmmotocross View Post
            I have this Gigabyte GTX 1070 that have no Vcore, but other voltages are ok

            any hint? i add measurements
            Do you have a boardviewer file for this type, i'm looking for some missing ic
            Attached Files

            Comment


              #7
              Re: Gigabyte GTX 1070 - no Vcore, other voltages ok

              sry mate no BV or schema and i dont have card anymore

              Comment


                #8
                Re: Gigabyte GTX 1070 - no Vcore, other voltages ok

                Originally posted by gazone View Post
                Do you have a boardviewer file for this type, i'm looking for some missing ic
                same q521. b20p03. I checked with my board

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