There’s a new case of melted 12VHPWR power cables appearing online but it doesn’t involve an NVIDIA GeForce RTX 4090 or 5090. This time around, the victim seems to be an RTX 5070.
X User ere9w took to the social media platform and posted a couple of videos, showing how his RTX 5070 was sacrificed to the Gaming Gods via what a faulty power cable. Note that they seem focused on the fact that the culprit of the burnout was the cable itself, and not the head of the connector.
追加の動画です、誰かわかる方いたら是非m(_ _)m
ちなみに、グラフィックカードはZOTACのRTX5070そして電源はシーソニックのGX-750です。
もちろん、両方ともに新品の物になります。 pic.twitter.com/fCO2O7o1cD
— ケンケン🐶自作PC依頼受付(クレカ決済◎)@埼玉 (@ere9w) April 10, 2025
Further details reveal that the cable was part of a Seasonic Focus GX-750 PSU, and that one of its wires combusted. There are a multitude of theories of how it happened; some users surmised that the power connector had one of its pins pushed into the back, thus causing some power distribution issues.
Renowned German reviewer and overclocker, Der8auer demonstrated how this happened earlier in the year: a 12V cable could have a temperature reaching as high as 150°C, which, by the laws of physics, would effectively melt anything, including the PVC wrapped around the filament. What is even more surprising is that, in the case of the affected RTX 5070, it only affected one wire and not the whole cable.
The mystery itself deepens, as the Seasonic PSU that burned the RTX 5070 was using the new ATX 3.1 design, along with native 12V-2×6 cables.
(Source: X, Videocardz)
