A Brazilian repair and modding team got a badly damaged Nvidia RTX 5070 Ti to initialize by rerouting its power and using voltage-regulator circuitry from an AMD Radeon RX 580. The RX 580 did not render graphics: it served as an improvised power source for the Nvidia card’s GPU core. The result was a striking bench experiment, not a validated or safe do-it-yourself repair.
How the RX 580 helped bring the RTX 5070 Ti back
The team, led by Paulo Gomes with Sidnelson and later collaborators, received an RTX 5070 Ti whose printed circuit board had a large burned and missing section around the voltage-regulator module (VRM). VideoCardz reported that a conventional repair was considered impossible. The reporting does not establish what caused the damage.
Rather than use the RX 580 as a second graphics card, the team repurposed its surviving VRM circuitry to supply power to the RTX 5070 Ti’s GPU core. They rerouted power and made multiple circuit modifications, including manually soldered and bypassed power paths. Because the AMD and Nvidia cards use different power-management systems, this required adapting the donor circuitry rather than simply connecting the two boards.
The modified card initialized and produced a display signal. That proved the GPU could start in the improvised arrangement; it did not establish that the RX 580-assisted configuration could run reliably under sustained, demanding workloads. The initial reporting described only light-load operation.
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How the project changed after the initial RX 580 setup
Later work moved away from the original board arrangement and used an ASUS ROG Strix RTX 2080 Ti PCB in the evolving build. That is a distinct stage of the project, not evidence that the initial RX 580-assisted configuration had passed heavy-load testing.
| Project stage | Power or board arrangement | PCIe and reported operation | What the reports establish |
|---|---|---|---|
| Initial revival | RX 580 VRM circuitry supplied power to the RTX 5070 Ti GPU core through modified power paths. | The card initialized and produced a display signal; PCIe link details are not stated in the initial reporting. | Successful startup and light-workload operation, not heavy-load validation. (VideoCardz) |
| Later build | The project replaced the original board arrangement with an ASUS ROG Strix RTX 2080 Ti PCB and added soldered NVVDD, MSVDD and ground paths. | VideoCardz reported PCIe 4.0 x4 at one stage, followed by a test-platform change to PCIe 3.0 x16. The team said that change raised bandwidth from 8 GB/s to 16 GB/s. | Further development and testing, with reported display, driver, voltage and thermal problems. (VideoCardz) |
The changing hardware matters when interpreting the results: later measurements and benchmark figures should not be treated as proof that the first RX 580-powered arrangement delivered the same performance or reliability.
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What the later tests achieved—and what went wrong
Tom’s Hardware reported that the team initially reached performance it described as roughly RTX 3070-level, then reduced the load-related voltage drop from about 400 mV to about 30 mV. In the later testing it covered, the modified card reached a 3.23 GHz core clock and 34 Gbps memory bandwidth, and scored 11,150 points in Unigine Superposition. These are reported results from the team’s evolving experimental build, not a standardized comparison establishing equivalent performance across games or workloads.
The same reporting documents why a benchmark score is not a safety sign-off. The team encountered display-signal problems and a Windows-driver conflict. During later testing, temperatures reportedly jumped from about 50°C to 80°C in one second, while a 12V wire approached 100°C. Those observations point to serious thermal and electrical instability, even after the voltage drop had been reduced.
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Is the Frankenstein RTX 5070 Ti safe to use?
The available reporting supports treating this as an expert bench experiment and repair demonstration, not a working card suitable for everyday use. The initial RX 580-assisted configuration was not reported as having undergone heavy-load validation, and the later configuration showed rapid temperature increases and a dangerously hot power wire alongside voltage, display and driver issues.
The project’s complexity is also easy to underestimate from a short video or benchmark result. It involved manually rerouting power between different GPU power architectures, modifying circuit paths and monitoring current and wire heating. Nothing in the reporting establishes a repeatable home repair procedure or a safe operating envelope. Do not reproduce the wiring or use a similarly modified card in a normal PC based on these reports.
Why the repair is notable
The achievement is that the team found a way to power and initialize a high-end GPU despite extensive damage near its original VRM area. In his first-person account for Igor’sLAB, Gomes summed up the appeal of the challenge: “But that is exactly what makes it interesting.” The engineering ingenuity is real; so are the limits shown by the subsequent testing.
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