Reported by 2 outlets
The story so far
AI summary of the reporting below · Updated · How we work
A workstation owner running two Nvidia RTX PRO 6000 Blackwell graphics cards discovered heat damage on both 12V-2x6 power cables, according to Tom's Hardware and Guru3D. The system, which utilized a Seasonic PRIME TX-1600 Noctua Edition power supply, experienced frayed, stiff, and peeling braided sleeving on several wires. [1][2]
The user reported lowering the power limit on both cards to 500W, well under their 600W maximum draw, in an attempt to avoid excessive heat while maintaining workflow performance. However, only two pins on each cable showed melting damage, pointing to uneven current distribution across the pins as the likely cause of localized temperature spikes. [1]
The incident highlights ongoing thermal challenges with 12V-2x6 high-draw connectors. While community members have proposed third-party accessories such as the Corsair ThermalProtect cable, Thermal Grizzly WireView Pro II, and Aqua Computing AMPINEL to balance current or detect overheating, enthusiasts note that modern high-power GPUs may ultimately require thicker wiring and redesigned connectors rather than aftermarket fixes. [1]
A workstation owner has reported damaged sleeving on both 12V-2×6 power cables in a system running two NVIDIA RTX PRO 6000 Blackwell graphics cards and a Seasonic PRIME TX-1600 Noctua Edition power supply.
via Guru3D
The 12V-2x6 connector nearly took out two RTX PRO 6000 Blackwell Workstation GPUs; luckily, the owner spotted the damaged cables before they melted the GPU connectors.
via Tom’s Hardware