Pushing a flagship graphics card to its limits can be tempting, but a recent RTX 5090 modding attempt shows just how quickly things can go wrong.
In a risky experiment, the overclocking-focused creator Frame Chasers modified a GIGABYTE GeForce RTX 5090 by combining two aggressive power-related changes: a shunt mod (commonly used to raise the GPU’s power limit) and the addition of a second 12V-2×6 (16-pin) power connector directly onto the card’s PCB. The goal was straightforward—spread the power load across two connectors and give the card more headroom for extreme power draw, rather than relying on a single 16-pin connection.
Interestingly, certain GIGABYTE RTX 5090 models reportedly include a PCB footprint intended for an additional 12V-2×6 connector, located toward the right side of the board. Frame Chasers leveraged that layout, soldered on the second connector, and then shunt-modded the card to enable even higher power draw.
At first, the setup appeared to work. But the situation escalated into catastrophic PCB damage: the graphics card overheated so severely that it burned holes through the PCB, and at least one capacitor was blown off its position due to extreme heat. The outcome highlights a brutal reality of GPU power mods—when something fails, it can fail instantly and dramatically.
According to Frame Chasers, a key problem may have been fan behavior. The card allegedly had a bug or fault where the GPU fans didn’t spin up, even while temperatures climbed dangerously high. What makes the incident even more alarming is that it happened while the PC was idle. However, the GPU was set to Performance mode in the NVIDIA Control Panel, which can keep the card in a higher-power “always-on” 3D state rather than fully ramping down. Combined with the shunt mod increasing power draw, the GPU could have been pulling far more power than expected for an “idle” scenario—while the cooling system never reacted.
Despite the dramatic damage to the board, there may be a small silver lining. The GPU core and VRAM are said to appear intact, meaning they could potentially be transplanted onto another compatible PCB if a suitable donor board is found. Frame Chasers has reportedly sent the damaged RTX 5090 to repair specialist NorthWestRepair to explore that possibility.
For anyone considering similar mods on high-end GPUs like the RTX 5090, this serves as a clear warning: shunt mods and additional power connector mods aren’t just advanced—they’re inherently dangerous. One unexpected fan control issue, one misread power state, or one thermal runaway scenario can turn a top-tier graphics card into a burned-out PCB in a flash.
