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    Dead Rx480

    I have an old RX480 i trying to get going,
    It has a ground on the two main fuses.
    Causing this i believe it is the IR 3553M C610P 3RR3 chip
    Watching this video helped, its the same fault https://youtu.be/R8zXFcxyWc0
    I also need a 5KW20 270 16V capacitor
    I am unable to locate these to buy, and have no idea how to remove the IR3553M chip. i just cant seem to melt any solder on the board, tried x3 irons
    I attached some picture of required parts.
    Thanks
    Attached Files

    #2
    Re: Dead Rx480

    Hi, about soldering and desoldering in graphics cards, they are made to disipate a lot of heat, so with a normal iron will be not enough, you will need, of course a hot air station, for soldering those kind of multi-leg ics, and still maybe not enugh, since the are soldered with solder without Pb (lead), wich needs more heat to become liquid.

    The best option I use is a hot-bed, they are cheap and are selled in aliexpress for about 10$, you put the card on it, heat the card and it helps a lot to desolder the factory solder.

    Ill put a link to the one I bought, but I dont know if it will be spam, so if needed PM me.

    Hope it helps

    Edit: Of course you will need a good flux for soldering and a good solder too
    Last edited by foshland; 11-16-2021, 08:57 AM. Reason: forgotten to add info

    Comment


      #3
      Re: Dead Rx480

      Hello,
      I have ordered a hot air soldering iron and a hot bed (thanks foshland)
      Just not sure if i can use these chips and caps
      the cap is a 5KW20 270 16V and the IR is 3553M C610P 3RR3

      AliExpress said to use this IR IR3553M IR3553MPBF IR3553MTRPBF PQFN-25 New Original Genuine IC Chip

      I found this Cap 16V270UF 8x8

      Will these be ok to use.

      Thanks
      Attached Files

      Comment


        #4
        Re: Dead Rx480

        Just wondering, why do you think you need a new capacitor?

        Comment


          #5
          Re: Dead Rx480

          Because my son snapped it off

          Comment


            #6
            Re: Dead Rx480

            Okay then.

            16V 270uF is are the values. So look for those, ignore other numbers.
            Package size and low ESR would be the next things to look at.

            The chip is indeed IR3553M so ignore other numbers.

            Comment


              #7
              Re: Dead Rx480

              Ok thanks for checking that.
              Just hope i can solder the IR on, looks fiddly

              Comment


                #8
                Re: Dead Rx480

                Yup, these chips can be a pain. Usually I don't use a preheater for GPU-s but for these chips, it's best to use one.

                Comment


                  #9
                  Re: Dead Rx480

                  I removed four IR chips and tested for ground after each one, the ground disappeared after removing the fourth chip.
                  Then i noticed a tiny resistor or fuse had come off next to one, ill post a pic, if anyone can let me know what it is that would be great.
                  Thanks for your reply's so far.
                  Attached Files

                  Comment


                    #10
                    Re: Dead Rx480

                    Hi, what make and specific model is your card? for looking for a board diagram or boardview, it would help.

                    As you can see, all the IR3553M has a similar capacitor, and if you like electronics, its the time to get a capacitance meter (Ali is your friend), so you can meassure the others one and buy a bunch of them similar size and capacity very cheap. But if you find or tell a model of the board maybe there is a schematics telling you all the data needed for ordering just the capacitor.

                    Comment


                      #11
                      Re: Dead Rx480

                      Hello,
                      Its a Sapphire Nitro RX480 8Gig,
                      Its been sitting in the cupboard for a couple of years,
                      It died and was one month out of warranty, they wouldn't cover it.
                      Ali is good but the postage is sooo sloow, the capacitors i ordered are arriving end of February.

                      Comment


                        #12
                        Re: Dead Rx480

                        May I ask what kind of pre-heater you bought? I can't find any for $10.
                        If you can't use a link here then a search word for aliexpress would be good.
                        Thanks.

                        Comment


                          #13
                          Re: Dead Rx480

                          Hi, search on Ali, LUXIANZI preheater, I bought the 500W one, 14 Euros, maybe near 20 dollar, but for sure a helper in GPUs

                          Comment


                            #14
                            Re: Dead Rx480

                            https://www.aliexpress.com/item/4001...53476695%22%7D
                            still waiting for mine,
                            the hot air soldering iron came quick though.

                            Comment


                              #15
                              Re: Dead Rx480

                              Hello,

                              I replaced the IR3353 chips and the two blown fuses
                              All grounds were gone.
                              I plugged it in and all the fuses blew and x3 IR chips went to ground.
                              I replaced the 3 IR chips and blown fuses, no grounds again.
                              plugged it in again and the IR chips were arcing, didn't blow any fuses.

                              Any ides, ill link a video i took.

                              Even the spot that has no IR chip is Arcing.
                              and yes the bottom cap is just temp..

                              Last edited by Bluedog69; 12-18-2021, 05:42 AM. Reason: video link not appering

                              Comment


                                #16
                                Re: Dead Rx480

                                Video link
                                https://imgur.com/t9RXvCF

                                Comment


                                  #17
                                  Re: Dead Rx480

                                  Have you check 3567 before?
                                  3567 control 4x3553, and you have only 3 blowed.

                                  Comment


                                    #18
                                    Re: Dead Rx480

                                    I ended up changing all the IR3553

                                    Comment

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