RTX 5090 Adapter Pushes One Wire to 11.73A, Above 9.5A Limit, Even at 85% Power

Measurements by MyDrivers show the bundled 4×8-pin-to-16-pin adapter on the GeForce RTX 5090 Founders Edition distributes current unevenly, with a single wire carrying up to 11.73A against the 9.5A per-pin rating. The imbalance persists even with power capped at 85% (about 488W), because it is driven by contact resistance differences, not total power.

• One wire in Plug C carries 11.73A, about 23% above the 9.5A rating
• Intra-plug gap between the two 12V wires reaches 4.52A
• Test ran at 85% power (488W) in Cyberpunk 2077 with RT and DLSS
• The FE uses a single shunt and cannot see per-wire imbalance