Nvidia RTX PRO 6000 user’s cables almost melted, even when limited to 500W

Reddit user u/Doomslayer606 posted about frayed braided sleeving on both 12V-2x6 cables for their two RTX PRO 6000 Blackwell Workstation GPUs the other day, asking whether it’s normal cable degradation or a sign of overheating. The GPUs were running at 500W, below the maximum 600W power draw, but commenters are confident it’s overheated cables, as the poster reports stiff, cracked, and easily peeling sleeves on only some of the wires.

u/Doomslayer606 posted on r/PcBuild with the title “Did I just save my RTX PRO 6000 GPUs from melting?” with photos of the 12V-2x6 cable’s braided sleeving frayed. The poster asked in the description whether this was normal degradation, a manufacturing issue, or overheating. The poster reported that the damaged braided sleeving felt stiff and peeled off easily, which is a strong indication of heat damage, and the comments were sure that it was.

Luckily, the poster’s GPUs were safe, but the 12-2x6 connectors are notorious for melting due to high …