Why Is the RTX 5090's Power Connector Still Catching Fire in 2026?
You'd think that after years of headlines, lawsuits, and melted cables tied to Nvidia's 12VHPWR connector, the company would have quietly fixed the problem. You'd be wrong.
Steve from Hardware Unboxed — one of the most respected GPU reviewers on the planet — published a video on September 2, 2026, revealing that his own GeForce RTX 5090 had burned him. Literally. The 12VHPWR connector on his card melted during use, adding his name to a list of casualties that now spans two GPU generations.
The timing is damning. Nvidia launched the RTX 50 series with enormous fanfare, positioning cards like the RTX 5090 as the pinnacle of consumer GPU engineering. And yet the same connector that sparked fires and congressional inquiries during the RTX 4090 era appears to still be a live wire — in the worst possible sense.
What Are the Specs and Design Details of the RTX 5090's Power System?
| Specification | Detail | |---|---| | GPU Model | GeForce RTX 5090 | | Power Connector | 12VHPWR (16-pin) | | Typical TDP | ~575W | | PSU Used in Setup | Be Quiet! unit (high-end) | | Monitoring Tool Referenced | WireView Pro / GPU Tweak 3 | | Previous Generation Affected | RTX 4090 (same connector type) | | Alternative Referenced | Traditional 3x 8-pin PCIe connectors |
Steve's setup was anything but budget. He was using a premium Be Quiet! PSU — a brand known for quality — which means the failure cannot be pinned on cheap third-party hardware. One commenter noted that the RTX 5090's GPU Tweak 3 software actually includes per-pin power monitoring, suggesting Nvidia is at least internally aware of the risk, even if it refuses to say so publicly.
The root cause, as identified by both Steve and knowledgeable commenters, appears to be uneven current distribution across the connector's pins. When one or more pins fail to carry their share of the load, the remaining pins overheat — and at nearly 600 watts of draw, that heat has nowhere safe to go.
What Are the Pros and Cons of Nvidia's 12VHPWR Design?
The Case For It:
- Consolidates power delivery into a single, cleaner cable run
- Higher theoretical bandwidth for power delivery at scale
- Supported by modern PSU manufacturers with native connectors
The Case Against It (And It's Getting Worse):
- A pattern of thermal failures across two GPU generations with no official fix
- Failure risk scales with cost — the most expensive cards draw the most power
- Nvidia has offered zero public acknowledgment of the issue as of publication
- Premium PSUs and careful cable management are still no guarantee of safety
- Affected reviewers reportedly receive fast replacements from Nvidia and partners — a privilege regular consumers do not share
That last point is particularly sharp. As one community member bluntly put it, when a high-profile tech channel burns a card, a replacement arrives quickly. When an everyday buyer's $2,000 GPU melts, they're navigating RMA bureaucracy alone.
What Is the Internet Saying About Hardware Unboxed's Burned RTX 5090?
The community reaction has been a mixture of dark humor, genuine anger, and vindication for those who avoided the RTX 50 series entirely.
"You either die with a working 5090, or live long enough for it to burn down your house." — @andyderp6473
"DLSS 5 is so realistic, you can even feel the flames." — @Efsaaneh
"The RTX 6090 will come bundled with a fire extinguisher." — @BatteryBee
"Crazy that it happened to multiple reviewers, showing how high the chance of failure actually is." — @aapje
"Recently got a 7900xtx... it has triple 8-pin. And oh my god am I happy with it." — @Fizechef
The humor barely masks real frustration. Several users called for these connectors to be outright banned from future GPU designs, while others pointed out that AMD's competing Radeon RX 9070 XT — which uses traditional power connectors — has suddenly become a much more attractive proposition for safety-conscious buyers.
The sentiment from the broader community is clear: Nvidia's silence on this issue is no longer a PR misstep — it's becoming a credibility crisis.
Should You Buy an RTX 5090 Right Now?
If you are in the market for a top-tier GPU right now, the RTX 5090 undeniably offers class-leading raster and ray-traced performance. But the 12VHPWR connector issue is not a fringe problem happening to a handful of unlucky users. It has now claimed cards owned by careful, technically sophisticated reviewers using high-quality hardware in controlled environments.
At minimum, if you own a 5090 or 4090, consider using per-pin monitoring tools like WireView Pro and keeping cable bend radius as generous as possible — particularly near the GPU connector itself. Vertical GPU mounting, as suggested by several commenters, may also reduce stress on the connector.
But the real verdict is this: Nvidia needs to say something. The company's continued silence while reviewer after reviewer watches their flagship GPU smolder is no longer acceptable. Expect this story to dominate GPU forums and tech news through the coming week, with pressure mounting on Nvidia to issue an official response before the story crosses into mainstream consumer media. If no statement emerges by mid-September 2026, expect regulatory and media scrutiny to intensify significantly — and the used GPU market for RTX 50 series cards to soften as buyer confidence erodes.