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    #1

    GTX 1050, possible bad memory

    Hello guys. I am new here, and I am also new in the area of repairs (hobby). I'm trying to fix a Galax GTX1050 OC 2G. It displays all voltages. I'm going to try a flash bios but I have to wait for the 1.8v adapter.
    At the moment I am concerned with the resistances, 1.1 ohms GPU_V and 38 ohms on DDR_V. I bought it and it presented symmetrical artifacts before, but now it is no longer recognized by the system.
    Do you think the defect may be in the memories, due to the low resistance?

    I looked for data to compare but none had such a low resistance in memory.
    If only one memory module was damaged and I removed it, would the GPU work?
    With a second card connected, windows10 starts and the card starts to get hot in a slow but constant way, until after 1: 30min I can't keep my finger on top anymore.
    Thank you for your help.
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    #2
    Re: GTX 1050, possible bad memory

    this has got nothing to do with the memory. its stereotypical gpu failure from running too hot from the undersized coolers video card manufacturers always put on their gpus.

    u can try a reflow if u want but the chances of success are low on nvidia gpus and the fix will only last a short while unless the root problem is fixed: overheating gpu due to a crappy cooler.

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      #3
      Re: GTX 1050, possible bad memory

      Originally posted by mauruco View Post
      At the moment I am concerned with the resistances, 1.1 ohms GPU_V and 38 ohms on DDR_V. I bought it and it presented symmetrical artifacts before, but now it is no longer recognized by the system.
      Do you think the defect may be in the memories, due to the low resistance?
      No. Those resistances for the GPU and memory are very typical figures for both normal working and non-working video cards.

      The fact that you had artifacts means either the GPU chis is going bad (BGA between substrate and silicon die, not BGA between substrate and PCB) or the memory chips are going. Speaking of which...

      Originally posted by mauruco View Post
      If only one memory module was damaged and I removed it, would the GPU work?
      No, not easily. You'd need to edit the BIOS to tell the card how much RAM it has connected and probably also add/remove certain configuration resistors on the GPU (not sure which, though.) So in short, it's probably not possible.

      Also, since this is the 2 GB version of the card, I don't think you can go with lower RAM. AFAIK, the 1050 cards come with minimum of 2 GB, so removing RAM chips will just worsen the artifacts or more than likely, get you no video output at all.

      Originally posted by mauruco View Post
      With a second card connected, windows10 starts and the card starts to get hot in a slow but constant way, until after 1: 30min I can't keep my finger on top anymore.
      Thank you for your help.
      I don't know where, which, and why troubleshooting guides online suggest it is "OK" to test GPUs or CPUs without a cooler... but this is a VERY BAD PRACTICE. I cringe every time when I see someone doing this. Please always install some kind of a cooler on your GPU and CPU when testing them, even if it's just for a few seconds. In fact, if you ever tried this on much older cards and CPUs (especially from the AGP era), there's a good chance you would kill them instantly.

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        #4
        Re: GTX 1050, possible bad memory

        Actually nvidia GPU-s are able to display even when only one memory chip is present. But it depends. Haven't really tried it much.

        But.. Some cards (like the last two 1070 I had), stopped displaying when only one chip was faulty. Removing it did not make it display an image. Only replacing the bad chip fixed the issue.

        I would say you really do have an issue with one or two memory chips. Try replacing them. Maybe use "mats" blindly if you can. This will tell you exactly what to look at.

        And those resistances seem quite normal to me.

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          #5
          Re: GTX 1050, possible bad memory

          There's a video of GTX 670 with faulty memory getting repaired, the guy desolders two memory chips and it still runs but still with artifacts. I am myself looking for a way to modify the driver or the bios so I can disable one memory chip or one channel. mats from mods (nvidia's modular diagnostic software) can tell you which chip is bad, it can be made to start by itself, save the log and shutdown the computer. Or you can use your integrated gpu or maybe even another working gpu.

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            #6
            Re: GTX 1050, possible bad memory

            Thanks for all the tips guys.

            I have already ordered 4 memory modules that I will place as soon as they arrive.

            Out of curiosity and learning, I am carefully removing one module after another and testing to see if it gives the signal, so far I have only removed the module with number 4.

            After I removed module 4, the resistance went up to 56 Ohms, but no signal.

            I noticed after removing some discoloration on some pads, I thought I had ripped off some, but after cleaning better they came back to shine, so I really think it was corrosion.

            I'll do:
            1. Start using the small cooler to test and not my fingers anymore.
            2. Try to use "mats" (I didn't know there was such a tool).
            3. Replace all memory modules.
            4. Flash bios.
            5. Reflow / Reballing / Replace GPU.
            I will hope to have some kind of success in the end, even if it is just learning for the next time.
            And I will write here any kind of success.

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