Graphic card HELP?!!!

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  • ramondo
    Confused Member
    • Jun 2015
    • 39
    • USA
    #1

    Graphic card HELP?!!!

    Greetings.
    I need some info, help, direction to go, about Graphics cards. I have a Powercolor R9-270x 4gb. It works on basic windows 7 vga driver but not on any AMD driver( black screen on win boot with system crash) I have reinstalled win 7 and ran DDU also. I have used original AMD driver that worked from 2013 to 2018,same result. Replacement card works fine and this card fails on two other PC'S. I have checked web sites and find zilch. Most sites say reflowing or reballing GPU will fix this problem (MAYBE). I would like to learn more about how these cards function or what voltages and resistances should be found on the other devices on this board. Is anyone recording V&R readings of known working cards? (Not Benchmark results). The Mosfets (datasheet below) are 6mm PQFN and those are the last thing I want to remove. With newer gaming cards running $700.00 and up; I hope they become as repairable as TV's.

    PS. How to tell whether cap is Dry Alum electrolytic or Alum Poly ??

    CORRECTION: Caps in photo are 820 at 2.5volts
    Attached Files
    Thanks to all for being__WAR_KITTENS____!
    Tags: None
    • ramondo
      Confused Member
      • Jun 2015
      • 39
      • USA
      #2
      Re: Graphic card HELP?!!!

      BUMP??

      any responce at all will help.
      Thanks to all for being__WAR_KITTENS____!

        Comment

        • Moreno83
          Badcaps Legend
          • Jun 2014
          • 2008
          • The Netherlands
          #3
          Re: Graphic card HELP?!!!

          Before reflowing the gpu i would replace the caps and see what it does. They are cheap and if it doesnt work you could always put the old ones back.
          Could be one cap that is failing

          http://www.capacitorlab.com/capacitor-types-polymer/
          I only repair Panasonic plasma tv's! Currently owning a TX-P55VT50 and still searching for a ZT60!

            Comment

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