RTX 5090 Power Connector Melts During DLSS 5 Testing

A PC enthusiast's attempt to test Nvidia's latest neural rendering technology has ended in hardware failure, highlighting ongoing stability concerns for the RTX 50 series. The incident involved an MSI GeForce RTX 5090 Gaming Trio OC that suffered a melted 16-pin power connector during a high-load session.

The failure occurred while the user was playing NBA 2K27, which is currently the only officially supported title for DLSS 5. According to reports from TechPowerUp and forum logs, the GPU's power consumption spiked dangerously during the test. GPU-Z logs recorded the board power peaking at 613.5W, a level that exceeded the thermal and electrical tolerances of the power delivery system, resulting in the connector melting.

The 12VHPWR Design Flaw

This incident is the latest in a series of reports involving the 12VHPWR (12-pin) connectors used in high-end RTX 50 series cards. The connector has been plagued by a known design vulnerability where improper seating or imbalances in current distribution can force a small number of pins to carry the entire electrical load. When this happens, the resulting localized heat can lead to plastic deformation and eventual melting of the terminal.

High-wattage GPUs are particularly susceptible to this failure mode. Because the RTX 5090 is designed for extreme performance, its peak power consumption frequently approaches or exceeds the 600W threshold. When the hardware is pushed to its absolute limit—as seen in this DLSS 5 test—the margin for error regarding cable seating and electrical stability disappears.

Industry Implications

If new software features like DLSS 5 significantly increase the power floor or create higher transient spikes, it may push the RTX 5090 beyond the safe operating limits of its current power specification. This creates a critical risk for enthusiasts using high-wattage GPUs, as repeated excursions past 600W increase the likelihood of hardware failure and potential fire hazards.

What to Watch

It remains to be seen if Nvidia or board partners like MSI will issue revised power limits or hardware revisions to mitigate these risks. While the 613.5W peak is a documented data point from this specific incident, it is not yet confirmed if this level of power draw is a systemic requirement for DLSS 5 or an anomaly of the Gaming Trio OC's factory overclock. Users are advised to ensure their power cables are fully seated and to monitor board power when utilizing early-access neural rendering features.