Zotac GTX 1060 3GB

[marcinas1983]

Hello! I have a similar problem as the author of the topic. I'm starting to learn how to repair electronics. I bought a damaged Zotac GTX 1060 3GB graphics card. I measured what the author of the topic measured and I attach a photo. The card core is slightly warm after power-on. Does anyone know what could have been damaged? Sorry for my English, I use Google Translator.

[Traptor]

It seems to you have a shortage on memory line. (0ohm, 0V)

Remove the coil from the pcb and measure the resistance on the two pins.
Depending on the measured values, you can search further

[marcinas1983]

Thank you for your answer. In the near future I will try to desolder the coil and check where the short circuit is. I will report the results in this topic.

[marcinas1983]

I desoldered the vram coil and took a measurement. I ordered a laboratory power supply, I can perform a short-circuit test and check whether any of the VRAM chips are heating up.

[marcinas1983]

I desoldered all the vram banks and the short circuit is still there. GPU short circuit.

[Traptor]

I desoldered all the vram banks and the short circuit is still there. GPU short circuit.

If you desoldered all memory chip and the shortage is still, it means the gpu core is possibly dead.

[haoran wang]

I think you should have 5V before 1.8v was occured. and power sequence should be 3V--12V--5V--1.8V--NVVDD(GPU)--PEXVDD(PCIE)--FBVDD(VRAM)

[haoran wang]

By the way, you need boardview cad file and schematic to compare what you need to do next

[texas1978]

Hello there do you have the Boardview for this or do you know where I Can get this for the Zotac 1060 ?

[SMDFlea]

Hello there do you have the Boardview for this or do you know where I Can get this for the Zotac 1060 ?

Post your request in one of the existing topics in the Bios & Schematic Requests! sub forum https://www.badcaps.net/search?q=Zot...oardview%22%7D

[DynaxSC]

There is a real chance that GPU still could be OK. The short can be on some MLCC cap. Only way to discover the shorted cap is high current injection, 20-30 Amps (with voltage limit to nominal memory supply voltage) + spraying the board with isopropyl alcohol, looking where it evaporates fast. Alternatively a thermal camera, but they are quite expensive. To do this it is recommended to take off the GPU, as the short can disappear - burn out - and then the GPU is at risk, if injected voltage will rise too high. Also taking off the GPU will give the final definite answer what is shorted, GPU or cap/board.

The generation of 20-30 Amps current is not easy, either you have a very powerful swithing and regulated lab power supply, or you need a "short killer" device, they are available on Aliexpress, but the quality / throughoutput stability is low, they can generate such high current only 10-15 seconds, then shut off due to overtemperature, good for mobile phones, less for GPU cards. You might also run two/three 10 Amps power supplys in parallel.

BTW if the GPU is really shorted for good, it might not be possible to warm it up so you can feel or even measure this, as the resistance goes down to almost total zero, and there is no resistance, on which some heat can be generated even with 20-30 Amps. However this is more likely on NVVDD (VCORE).

Sometimes you can also discover a shorted MLCC cap with a magnifier glass, it may have some visible difference from a healthy cap, eg. a very thin dark line, or some crack.

It seldom also happens that the board itself gets a short somewhere between tracks/layers, this is very difficult to trace/repair.