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Sure way to tell when chipset (or any other BGA chip for that matter) is burnt on a m

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    Sure way to tell when chipset (or any other BGA chip for that matter) is burnt on a m

    Is there a sure way to tell when a chipset or any other BGA chip is fried or it just needs a BGA reflow/rework. I have resurrected a few desktop by reflowing the southbridge and northbridge but reflowing won't work most of the time in my case. Laptop motherboards are a different story, I have resurrected many HP DV series laptops by reflowing (I'd say about 90% success rate). Is there a way to tell when a motherboard has a fried BGA chip?
    Guns don't solve problems. I'll take 12

    #2
    Re: Sure way to tell when chipset (or any other BGA chip for that matter) is burnt on

    If it looks discolored then that is a good sign it could be fried and not just need reflowing/reballing. Other than that the only sure way is to test each pin.

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      #3
      Re: Sure way to tell when chipset (or any other BGA chip for that matter) is burnt on

      How does one go about testing each pin?
      Guns don't solve problems. I'll take 12

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        #4
        Re: Sure way to tell when chipset (or any other BGA chip for that matter) is burnt on

        Get the spec sheet for the BGA you are testing and start checking each pin for the proper signal.

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          #5
          Re: Sure way to tell when chipset (or any other BGA chip for that matter) is burnt on

          Scope... some boards have pads near the chip. See if voltage is going into it.

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            #6
            Re: Sure way to tell when chipset (or any other BGA chip for that matter) is burnt on

            There is a true and tried way to tell, but only a few people really know. Hers the trick...look really close (might have to get a magnifying glass) and if it says 'nvidia' on it and its not on a video card, that means its not worth the bother
            Cap Datasheet Depot: http://www.paullinebarger.net/DS/
            ^If you have datasheets not listed PM me

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              #7
              Re: Sure way to tell when chipset (or any other BGA chip for that matter) is burnt on

              Originally posted by Uranium-235 View Post
              There is a true and tried way to tell, but only a few people really know. Hers the trick...look really close (might have to get a magnifying glass) and if it says 'nvidia' on it and its not on a video card, that means its not worth the bother
              You are probably right. Most of boards I've seen with bad chipsets are nvidia their GPU's aren't strangers to sudden death too.
              Guns don't solve problems. I'll take 12

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                #8
                Re: Sure way to tell when chipset (or any other BGA chip for that matter) is burnt on

                surely you can get new nvidia chipsets on ebay, why you'd want to, I don't know, but I guess it would be possible to replace it if you had the tools.
                "Tantalum for the brave, Solid Aluminium for the wise, Wet Electrolytic for the adventurous"
                -David VanHorn

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                  #9
                  Re: Sure way to tell when chipset (or any other BGA chip for that matter) is burnt on

                  nah I wouldn't buy new chips and replace them, I just want to be able to tell if the chipset is bad so I don't spend time messing with the board
                  Guns don't solve problems. I'll take 12

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