Radeon X850 pro...

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  • HenryJ
    Senior Member
    • Oct 2006
    • 54
    #1

    Radeon X850 pro...

    Anyone still using one.
    i sure could use some help on R17 value located fan side above gold finger 8

    Regards: HenryJ



    edit: 4 spelling
    Tags: None
    • Toasty
      Badcaps Legend
      • Jul 2007
      • 4171
      #2
      Re: Radeon X850 pro...

      Hi HenryJ,

      Is the resistor damaged or missing? Or, you don't know how to get the value?

      Can you post a pic of the problem part or area?

      Toast
      veritas odium parit

        Comment

        • HenryJ
          Senior Member
          • Oct 2006
          • 54
          #3
          Re: Radeon X850 pro...

          Received this missing along with C81 C82 so no pic or code to crack.

          Thanks for your input !

            Comment

            • HenryJ
              Senior Member
              • Oct 2006
              • 54
              #4
              Re: Radeon X850 pro...

              Longtime comming on that pic Toast but with the help of plain Bill i'm able to post pic this time so here you go
              Attached Files

                Comment

                • Toasty
                  Badcaps Legend
                  • Jul 2007
                  • 4171
                  #5
                  Re: Radeon X850 pro...

                  Without a reference X850 Pro card, there is no way to get that resistor value. If I had to -guess-, I would use the same value as R16 on the back side.

                  Same goes for the 3 missing caps C81,82,86. Those caps are decoupling caps to keep noise off the lines. You could take one off the reverse and measure it to get a value.

                  That resistor is extremely small. Trying to replace it is going to be very tricky at best as it's 2 x 1mm. The surface tension from the solder alone will drag it off the pads. Those are placed with a solder paste/glue that is cured then heated in a -very- precisely controlled environment to get the solder to flow. Be aware that heating and soldering on one side may cause you to lose components on the other. A too high wattage iron may destroy the traces and pads.

                  Plus, you'll need a very good magnifier and a super steady hand. Get extras of each as you're gonna lose one...

                  Toast
                  veritas odium parit

                    Comment

                    • Wizard
                      Badcaps Legend
                      • Mar 2008
                      • 2296
                      #6
                      Re: Radeon X850 pro...

                      I have done it, need a needle tweezer to hold it down while soldering.

                      Philips modules are filled with those microscopic SMD devices.

                      Cheers, Wizard

                        Comment

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