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Reballing HP G62 Intel ATI HD5470

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    #1

    Reballing HP G62 Intel ATI HD5470

    First time with the Intel version of this laptop. Powers on but no display, obviously none other than the GPU at fault. It's an ATI HD5470 on this one.

    Same issue as the RS880M/HD4250 - the pads on the mainboard are way, way, way too small. Oh well, that's more profits for me.

    Left it running in RTHDRIBL and it was still ok when i came back 5 hours later, with a maximum recorded temperature of 77C, so i think it's gonna be fine. The owner has picked it up just now.
    Attached Files
    Last edited by Th3_uN1Qu3; 12-03-2014, 12:57 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!
    Tags: None
    #2
    Re: Reballing HP G62 Intel ATI HD5470

    Respect for your work!

    Q: universal stencil or for that chip?

    nvm saw the stencil in your hand :P



    ...

    one thing i still don`t get it; ofc because i don`t have the space to get a bga station and do this process but i`m asking for ... maybe ... future ... luck ... i`ll get a station and know this, do you heat with stencil on or lift the stencil the heat it up?
    Last edited by dj_ricoh; 12-03-2014, 01:01 PM.
    Just cook it! It's already broken.

    Comment

      #3
      Re: Reballing HP G62 Intel ATI HD5470

      Good job!

      Love it.
      "We have offered them (the Arabs) a sensible way for so many years. But no, they wanted to fight. Fine! We gave them technology, the latest, the kind even Vietnam didn't have. They had double superiority in tanks and aircraft, triple in artillery, and in air defense and anti-tank weapons they had absolute supremacy. And what? Once again they were beaten. Once again they scrammed [sic]. Once again they screamed for us to come save them. Sadat woke me up in the middle of the night twice over the phone, 'Save me!' He demanded to send Soviet troops, and immediately! No! We are not going to fight for them."

      -Leonid Brezhnev (On the Yom Kippur War)

      Comment

        #4
        Re: Reballing HP G62 Intel ATI HD5470

        Originally posted by dj_ricoh View Post
        do you heat with stencil on or lift the stencil the heat it up?
        There are two kinds of stencils. Direct heat and indirect heat. I use the direct heat stencils so the stencil stays in place when soldering the balls to the chip, it comes off afterwards.

        With the indirect heat type, the stencil is lifted first and then heat is applied. But since i use a hot air station for soldering the balls to the chip, i must use the direct heat type, otherwise the air will move the balls towards each other and make a big mess.

        Indirect heat stencils can only be used with a IR station or a hot plate.
        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

          #5
          Re: Reballing HP G62 Intel ATI HD5470

          good job bro, new experiences
          Hidup yang benar2 membosankan.. hek that bak mita peng

          Comment

            #6
            Re: Reballing HP G62 Intel ATI HD5470

            Originally posted by Th3_uN1Qu3 View Post
            There are two kinds of stencils. Direct heat and indirect heat. I use the direct heat stencils so the stencil stays in place when soldering the balls to the chip, it comes off afterwards.

            With the indirect heat type, the stencil is lifted first and then heat is applied. But since i use a hot air station for soldering the balls to the chip, i must use the direct heat type, otherwise the air will move the balls towards each other and make a big mess.

            Indirect heat stencils can only be used with a IR station or a hot plate.
            Are you sure about this? I thought I saw some reflow videos where they used hot air after removing the stencils... Maybe they used really tacky flux?
            "We have offered them (the Arabs) a sensible way for so many years. But no, they wanted to fight. Fine! We gave them technology, the latest, the kind even Vietnam didn't have. They had double superiority in tanks and aircraft, triple in artillery, and in air defense and anti-tank weapons they had absolute supremacy. And what? Once again they were beaten. Once again they scrammed [sic]. Once again they screamed for us to come save them. Sadat woke me up in the middle of the night twice over the phone, 'Save me!' He demanded to send Soviet troops, and immediately! No! We are not going to fight for them."

            -Leonid Brezhnev (On the Yom Kippur War)

            Comment

              #7
              Re: Reballing HP G62 Intel ATI HD5470

              Originally posted by mockingbird View Post
              Are you sure about this? I thought I saw some reflow videos where they used hot air after removing the stencils... Maybe they used really tacky flux?
              only with solder paste.

              but why using hot air when IR is soooooo low cost now
              http://www.ebay.com/itm/80-80mm-450W...item3397a4dcc1

              Comment

                #8
                Re: Reballing HP G62 Intel ATI HD5470

                that was my first success notebook. on mine i had to reball also chipset


                good work as always.


                me too for small chip use dh steancil. very good and easy to reball.

                Comment

                  #9
                  Re: Reballing HP G62 Intel ATI HD5470

                  i do work like this , 9090 stencils , remove stencil balls are free , and use hot air , no merges or balls runing away , its all about wind speed and the type of flux used

                  Comment

                    #10
                    Re: Reballing HP G62 Intel ATI HD5470

                    and i suppose also on ball size tried many time doing that with 0.45 with no good success. i cant even image doint hot air and 9090 with 0.3 balls

                    Comment

                      #11
                      Re: Reballing HP G62 Intel ATI HD5470

                      Very nice work, you are good in reballing, i want to ask you a question what time do you spend to do this?

                      Comment

                        #12
                        Re: Reballing HP G62 Intel ATI HD5470

                        You can reball it in under 45 min from my experience.
                        Lift = 15 min (with MB cleaning)
                        Ball placement = 15 min (with chip cleaning)
                        Chip placement = 13 min.
                        This is from my profile, so some ppl do it faster some slower.

                        Comment

                          #13
                          Re: Reballing HP G62 Intel ATI HD5470

                          It depends on the chip and board, some need to be cleaned more carefully so take longer, i'd say anywhere from 40 min to 1h30 for the whole process from start to finish, complete with cooling down of the board and initial power up.

                          It also depends on whether i've been lazy and didn't bother to clean my stencils properly from flux residue - reballing will then take me longer as the balls will stick to the stencil and will need to be guided into the holes by a toothpick or sharp blade.
                          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

                            #14
                            Re: Reballing HP G62 Intel ATI HD5470

                            What would be the best universal stencil to match that vga (Mobility HD5470) contacts drawing?

                            Comment

                              #15
                              Re: Reballing HP G62 Intel ATI HD5470

                              Originally posted by Th3_uN1Qu3 View Post
                              There are two kinds of stencils. Direct heat and indirect heat. I use the direct heat stencils so the stencil stays in place when soldering the balls to the chip, it comes off afterwards.

                              With the indirect heat type, the stencil is lifted first and then heat is applied. But since i use a hot air station for soldering the balls to the chip, i must use the direct heat type, otherwise the air will move the balls towards each other and make a big mess.

                              Indirect heat stencils can only be used with a IR station or a hot plate.
                              Good job , but i give you an advice , if you look the chip after become brown because you use hot air to solder the balls to the chip, even before i used hot air , but now i use hot plate like (Honton 1212) and the solder process is more rapid and the chip remains the same without burning (green) .
                              Another advice not from me but from Amtech is the preheat process up to the temperature 140 grade C.

                              I really like Reballing ,i have suffered too much with BGA
                              at the beginning , i could not sleep thinking about it until just now don t have more problems with it .
                              Attached Files

                              Comment

                                #16
                                Re: Reballing HP G62 Intel ATI HD5470

                                Thanks for the tip, but this works good enough for me. Although i do have a hot plate so i could give it a shot i guess. Laptop's still working btw, got in touch with the owner a few days ago.
                                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

                                  #17
                                  Re: Reballing HP G62 Intel ATI HD5470

                                  Originally posted by gcomputers View Post
                                  Good job , but i give you an advice , if you look the chip after become brown because you use hot air to solder the balls to the chip, even before i used hot air , but now i use hot plate like (Honton 1212) and the solder process is more rapid and the chip remains the same without burning (green) .
                                  Another advice not from me but from Amtech is the preheat process up to the temperature 140 grade C.

                                  I really like Reballing ,i have suffered too much with BGA
                                  at the beginning , i could not sleep thinking about it until just now don t have more problems with it .
                                  Whats that white thing from the plate?
                                  Just cook it! It's already broken.

                                  Comment

                                    #18
                                    Re: Reballing HP G62 Intel ATI HD5470

                                    It s some kind of thermal cloth (like kitchen paper for oven). It usually comes with the hot plate when you buy it.

                                    Comment

                                      #19
                                      Re: Reballing HP G62 Intel ATI HD5470

                                      Btw, just checked the pictures and that is a nvidia GPU from the affected lot. You do know that reballing those is useless, right?
                                      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

                                        #20
                                        Re: Reballing HP G62 Intel ATI HD5470

                                        hot plate is good but upsidedown. why heating ic from chip when u can heat it from balls

                                        Comment

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