Nvidia RTX PRO 6000 user’s cables almost melted, even when limited to 500W
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.
Reddit user u/Doomslayer606 reported that frayed braided sleeving on the 12V-2x6 cables for their RTX PRO 6000 Blackwell Workstation GPUs nearly melted, even when operating at 500W. Commenters confidently stated that the issue was overheated cables, noting the stiff, cracked, and easily peeling sleeves on some wires. The user shared photos of the frayed cable sleeving and asked whether it was normal degradation, a manufacturing issue, or overheating.
Luckily, the GPUs remained safe, but the poster explained that 12-2x6 connectors are prone to melting due to high power draw. One commenter inquired if they kept the stock power limit, to which the user responded they had reduced it to 500W, as increasing it would reduce performance by up to 50% and they needed to meet deadlines.
Despite the cables theoretically being able to handle 500W, one of the main causes of cable overheating is uneven current distribution across the pins. Users suggested aftermarket cables and modifications to prevent overheating, such as the Corsair ThermalProtect cable, Thermal Grizzly WireView Pro II, Aqua Computing AMPINEL, and a custom power distributor.
The poster concluded that while consuming GPUs have become powerful, the number of wires has decreased, leading to the need for better solutions.
Written by urgent.news from Tom's Hardware's reporting — not their text. Machine-written — may contain errors; check the original before relying on it.
