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u/External_Length_8877 explained how their GPU died in the first place. It was a pretty easy deduction since they found a capacitor knocked out of place, between the card and the radiator. Fallen capacitors can't just be put back; you need a proper replacement, which in this case would be a 16V, 270 μF hard polymer capacitor, no longer than 3mm.
Since the actual capacitor is not that easy to find in the region, the OP's father came up with a temporary solution instead. His son tells us that, aged 55, Alexander has been working as an electrician and a welder for the past 35 years, so he carries a lifetime of experience with him. Today, he works as a brigadier maintaining power lines in Serbia. His son describes him as a "real family man" who knows how to work on pretty much anything. Apparently, that list includes highly delicate graphics cards as well.
Alexander used a different, cheaper, and larger capacitor to replace its fallen comrade. It sticks out from the card, yet it works. Some people in the comments even said it fits the Gigabyte's variant's futuristic aesthetic, but the capacitor itself isn't suited for long-term usage because of its higher resistance, which would let the clocks run unchecked.
Moreover, the Redditor's father also replaced the old thermal paste with a "special" one that is designed for the high-voltage lines he works on at his job. They replied to a few comments saying the GPU's peak temp during gaming doesn't exceed 80°C. That may sound high, but keep in mind that everyone has different ambient temps. As we mentioned, the new capacitor also has significantly higher resistance than the original one, so perhaps that contributes, too.
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Oftentimes, we just have to look inward to find inspiration, and this story is surely serving as bonding material for the Russian father-son duo. OP is still trying to find the right component, so this serves as only a temporary solution to what is a $120 problem otherwise.
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- https://www.tomshardware.com/pc-components/gpus/ingenious-father-fixes-dead-rtx-3070-with-a-jerry-rigged-capacitor-from-an-old-radio-saves-worried-son-usd120-in-repair-costs-gpu-works-better-than-before-now#main
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