Unlucky PC user finds AMD's cheaper 8-pin GPU connectors can melt, too

In brief: Nvidia's RTX 4090 and 5090 have become notorious for melting power cable connectors. While the two flagship GPUs have drawn renewed attention to the problem over the past several years, users should remember that lower-wattage cards and cables aren't immune, even with power monitoring devices, as one unlucky AMD Radeon RX 7900 XTX user recently discovered. Redditor AwarenessHour9192 recently complained about a melted power connector on a PC graphics card, an issue commonly associated with Nvidia's top-of-the-line GPUs. However, this time the affected card was an AMD Radeon RX 7900 XTX. The user reported black screens and other problems with his PC over the course of months and could not diagnose the issue, even after a workshop reinstalled Windows and ran benchmarks. Only after disassembling the tower did he discover burn marks on the GPU's power connector. Nvidia's RTX 4090 and 5090 have frequently experienced the same problem over the past few years. While the company attempted to close the issue long ago by blaming user error, users have largely blamed its 16-pin power connectors and the 5090's near-600W power draw, with cases continuing to emerge. YouTube channel TecLab recently renewed awareness of the flaw by demonstrating two extreme ways to circumvent it. First, they lowered a 5090's operating temperature by soldering its PCB directly to the power cables, bypassing the connector entirely. On another unit, they proved that the 16-pin connector might be unnecessary by replacing it with a triple 8-pin setup without sacrificing performance, which also lowered temperatures. AwarenessHour's issue occurred with AMD's last-gen flagship GPU, which draws only 400W via an 8-pin connector. Furthermore, instead of plugging the power connector directly into the graphics card, he passed it through a Thermal Grizzly WireView power monitor, which is designed to prevent this exact problem. Luckily, the monitor prevented the damage from reaching the GPU, whereas many other cases have left severe burns on Nvidia graphics cards that now cost over $5,000. While AwarenessHour has not yet determined what caused the meltdown, Thermal Grizzly fortunately replaced the power connector and the WireView. The incident shows that even GPUs with modest TDPs and 8-pin power connectors can suffer from melted connectors. Users should still take care when installing them and check for physical damage if they experience video output issues.