Modern graphics cards are power guzzlers and there is a risk that the plugs of connection cables will burn. For its RTX 5090 graphics card, manufacturer MSI supplies a 12V 2×6 cable with yellow-colored plugs for the power supply. However, this cable is also susceptible to scorching due to high current flows.
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The problems with melting RTX 50 housings occur again and again. This will probably only change when Nvidia optimizes the power supply or completely reworks the design. To prevent the connectors from melting, the NVIDIA GeForce RTX 5090 graphics card uses a 12V 2×6 connector (see also) for the power supply. This connector replaces the previously used 12VHPWR connector. The 12V-2×6 connectors can supply up to 600 watts of power, so that the RTX 5090 is able to use up to 1200 watts. This measure was actually intended to prevent the connectors from scorching due to the high current flows.
However, this "move" does not seem to be working. Tom's Hardware had already pointed out at the end of April 2025 in the article MSI's 'secure' yellow-tipped RTX 5090 12V-2×6 cable is still vulnerable to melting, user report suggests, user report suggests that this 12V-2×6 cable is also still susceptible to heat and the plug melts.
A user at Quasar Zone reported thermal damage to the MSI-supplied 12V-2×6 power cable with yellow connector via Harukaze. These were originally intended to improve the fit of the cables and prevent melting. However, it is said that the associated RTX 5090 graphics card remains unharmed in the usual cases of molten plugs.
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