RTX 5090 Mod Spreads 12VHPWR Power Across Three Inputs, Keeps Wire Below 40°C

A modification for the RTX 5090 routes power through three inputs instead of relying on a single 12VHPWR connection. Wccftech reports that one owner attached an add-on board directly to the connector’s header and supplied it with auxiliary power from two standard 8-pin PCIe connectors.

The change spreads the power load across the inputs, rather than concentrating it on one. The report says the wire temperature stayed below 40°C under full load. Its headline describes the setup as keeping the wire temperature from crossing 40°C.

The modification is presented as a response to repeated reports of 12VHPWR connectors or cables overheating and melting. Wccftech says the arrangement could reduce the risk by distributing the load, but the supplied report does not establish that it prevents failures in other systems or configurations.

The account describes one owner’s modification; it does not provide broader test results or establish how the setup performs across other RTX 5090 systems. The reported temperature and potential reduction in melting risk should therefore be understood as claims about this specific modification.