Blister on Geforce 8800 GS CHIP ?

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  • tata123
    Senior Member
    • Nov 2013
    • 104
    • Germany

    #1

    Blister on Geforce 8800 GS CHIP ?

    It was not my fault, i have some blister on G92-700-A2 CHIP, is it possible that the Chip will work??
  • Djosla
    Badcaps Veteran
    • Dec 2012
    • 246
    • Montenegro

    #2
    Re: Blister on Geforce 8800 GS CHIP ?

    most likely not...

    Comment

    • tata123
      Senior Member
      • Nov 2013
      • 104
      • Germany

      #3
      Re: Blister on Geforce 8800 GS CHIP ?

      Yes, thanks it was also my opinion...

      The problem is, Geforce 8800 GS Chip is rare...

      Comment

      • newtothis
        Badcaps Legend
        • Mar 2013
        • 1556
        • england

        #4
        Re: Blister on Geforce 8800 GS CHIP ?

        http://www.aliexpress.com/wholesale?...ext=G92-700-A2

        Comment

        • tata123
          Senior Member
          • Nov 2013
          • 104
          • Germany

          #5
          Re: Blister on Geforce 8800 GS CHIP ?

          Yes thanks but 1 month to wait for a Chip...i hope i find one in europe.

          Comment

          • tata123
            Senior Member
            • Nov 2013
            • 104
            • Germany

            #6
            Re: Blister on Geforce 8800 GS CHIP ?

            Has anyone test it a chip with blister to reball, and put it back on the board??

            Comment

            • SteveNielsen
              Retired Tech
              • Jun 2012
              • 2327
              • USA

              #7
              Re: Blister on Geforce 8800 GS CHIP ?

              No picture?

              Comment

              • newtothis
                Badcaps Legend
                • Mar 2013
                • 1556
                • england

                #8
                Re: Blister on Geforce 8800 GS CHIP ?

                How did it get blistered?

                If it was popcorned due to reflow/reball attempt you can safely say its dead

                Comment

                • tata123
                  Senior Member
                  • Nov 2013
                  • 104
                  • Germany

                  #9
                  Re: Blister on Geforce 8800 GS CHIP ?

                  Picture no Problem!! But i dont know if you can see this on pic...

                  I have buy this shitty Imac for 40 euro and then i have seen this shit
                  Attached Files

                  Comment

                  • SteveNielsen
                    Retired Tech
                    • Jun 2012
                    • 2327
                    • USA

                    #10
                    Re: Blister on Geforce 8800 GS CHIP ?

                    No, don't see it but if that is conductive silver paste then clean it off around those tiny SMD parts.

                    Comment

                    • Th3_uN1Qu3
                      Believe in
                      • Jul 2010
                      • 6031
                      • Romania

                      #11
                      Re: Blister on Geforce 8800 GS CHIP ?

                      Measure across the SMD capacitors on the top of the chip. If any of those read <2 ohms (short) then the chip is dead. This is only valid with dedicated GPUs btw, things like northbridges sometimes have unused sections shorted out on the board, but if you measure the chip after you lift it from the board, it is no longer shorted.

                      I have had several blistered chips that still worked. But most of them do not.
                      Originally posted by PeteS in CA
                      Remember that by the time consequences of a short-sighted decision are experienced, the idiot who made the bad decision may have already been promoted or moved on to a better job at another company.
                      A working TV? How boring!

                      Comment

                      • tata123
                        Senior Member
                        • Nov 2013
                        • 104
                        • Germany

                        #12
                        Re: Blister on Geforce 8800 GS CHIP ?

                        @Th3_uN1Qu3

                        The Bigger SMD's shows 3ohms mos of them...??

                        Comment

                        • ktmmotocross
                          Boardkiller
                          • Feb 2014
                          • 3580
                          • slovakia

                          #13
                          Re: Blister on Geforce 8800 GS CHIP ?

                          Originally posted by tata123
                          Picture no Problem!! But i dont know if you can see this on pic...

                          I have buy this shitty Imac for 40 euro and then i have seen this shit

                          what shit? i dont see anything wrong.

                          Comment

                          • khaahk
                            Badcaps Veteran
                            • Dec 2013
                            • 759
                            • Estonia

                            #14
                            Re: Blister on Geforce 8800 GS CHIP ?

                            I have not seen thermal paste which is conductive electrically. The surroundings looks like the chip has been reflowed, so probably it has died once again...

                            Comment

                            • tata123
                              Senior Member
                              • Nov 2013
                              • 104
                              • Germany

                              #15
                              Re: Blister on Geforce 8800 GS CHIP ?

                              Is a G92-700-A2 changeable (aquivalent) with a G92-150-A2 or G92-720-A2?

                              Comment

                              • Th3_uN1Qu3
                                Believe in
                                • Jul 2010
                                • 6031
                                • Romania

                                #16
                                Re: Blister on Geforce 8800 GS CHIP ?

                                Both should work. I haven't done many G92 swaps myself but i've done plenty of G86. Even upgrading the G86-703-A2 (8400M G, 8 SP) to G86-731-A2 (8400M GS, 16 SP), or replacing G86-630-A2 with the older G86-620-A2 because that's what i had on hand. All of them worked. Also in the case of the 8400M G -> 8400M GS upgrade, the driver actually picked up the extra shaders and made the laptop faster.
                                Last edited by Th3_uN1Qu3; 05-11-2015, 06:10 PM.
                                Originally posted by PeteS in CA
                                Remember that by the time consequences of a short-sighted decision are experienced, the idiot who made the bad decision may have already been promoted or moved on to a better job at another company.
                                A working TV? How boring!

                                Comment

                                • tata123
                                  Senior Member
                                  • Nov 2013
                                  • 104
                                  • Germany

                                  #17
                                  Re: Blister on Geforce 8800 GS CHIP ?

                                  Thanks i will test it and write here the solution !!

                                  I have a Problem with a ATI Radeon HD4670 from Imac 21 2010 the Videocard is broken overall Artefacts like here http://s3.amazonaws.com/f01.justansw...1_imag0082.jpg

                                  I have change the balls but the same??

                                  Comment

                                  • Th3_uN1Qu3
                                    Believe in
                                    • Jul 2010
                                    • 6031
                                    • Romania

                                    #18
                                    Re: Blister on Geforce 8800 GS CHIP ?

                                    You need to replace the GPU. If i'm not mistaken, that series of Imacs is known for running very hot.
                                    Originally posted by PeteS in CA
                                    Remember that by the time consequences of a short-sighted decision are experienced, the idiot who made the bad decision may have already been promoted or moved on to a better job at another company.
                                    A working TV? How boring!

                                    Comment

                                    • Homer79
                                      Member
                                      • Dec 2014
                                      • 13
                                      • england

                                      #19
                                      Re: Blister on Geforce 8800 GS CHIP ?

                                      Hi,

                                      Normally I'm not one for buying chips off eBay. But having order 10+ G86-631-A2 with a date code of 2013+ from them, they are the genuine date chip. I've never had a duff one yet.
                                      Delivery was about 1-2weeks

                                      http://www.ebay.co.uk/itm/Brand-New-...item35d83240fa

                                      Regards

                                      Comment

                                      • tata123
                                        Senior Member
                                        • Nov 2013
                                        • 104
                                        • Germany

                                        #20
                                        Re: Blister on Geforce 8800 GS CHIP ?

                                        Originally posted by Th3_uN1Qu3
                                        You need to replace the GPU. If i'm not mistaken, that series of Imacs is known for running very hot.
                                        You mean the ATI Radeon HD4670 ? Ok the chip itself is destroyed?

                                        Thanks Homer79 for the link i will order one for the ATI, its cheap and in eu!!

                                        Comment

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