NVIDIA RTX 5090 Power Connector Overheats Even with 500W Maximum Power Limit

Regardless of precautions taken, the infamous 16-pin power connector continues to present significant risks. A user recently experienced the unfortunate occurrence of connector melting, despite attempting to mitigate the dangers beforehand.

User Struggles with Burnt 16-pin Power Connector on GIGABYTE RTX 5090 After Limiting Consumption to 500W

The increasing challenges faced by users in protecting their GPUs against connector melting has raised serious concerns. Unlike the more stable 6-pin and 8-pin PCIe connectors, the notorious 16-pin connector often encounters issues, despite several attempts at mitigation by manufacturers and users alike.

In light of these persistent problems, individuals are now considering investing in devices such as the Wireview II Pro for additional monitoring. It is regrettable that such drastic measures are even contemplated for a component as crucial as the NVIDIA GeForce RTX 5090, which has become particularly infamous for connector failures within the RTX 50 series. A report on the Mobil01 forums detailed a melting connector on a user’s GIGABYTE RTX 5090 AORUS Master ICE.

A close-up of a partially burnt white power connector being held by a hand. — Image Credit: mobile01

While not entirely unexpected, this connector’s failure was nonetheless disheartening for the user, who had taken prudent steps by capping the maximum power draw to 500W—generally lower than the typical 600W capacity for most RTX 5090 variants. Despite these precautions, the user soon discovered that his efforts were futile when confronting this persistent challenge.

A close-up view of a power connector on a computer component with an 8-pin configuration. — Image Credit: mobile01

The damage was particularly pronounced on the upper row of the 12V-2×6 connector, which exhibited burning and melting, while the lower row remained intact. This suggests an uneven distribution of load on the top pins, potentially due to poor contact. Notably, the user employed the three 8-pin to 12V-2×6 connector adapter provided with the GIGABYTE GPU, a setup known not to be robust against failure.

Close-up of an AORUS graphics card with multiple 'PCI-E' connectors plugged in, showing white and black cables. — Image Credit: mobile01

Ultimately, despite lowering the power limit, the user’s expensive graphics card succumbed to failure. This issue is not unique to the RTX 5090; there have been similar reports of the RTX 5080, RTX 5070 Ti, and certain Radeon RX 9070 XT GPUs suffering from connector melting, even with reduced power limits. This points to an unsettling reality: GPU survivability may depend more on luck than on adhering to guidelines.