The 12V-2×6 connector is a bit like playing Russian roulette: if you’re lucky, it doesn’t burn out; if you’re not, it goes up in smoke. After-sales service centers are full of boards with burnt-out connectors, and in China, some are even installing revised connectors with thicker pins. The aim? To improve contact between pins and reduce overheating. This is what a technician by the name of ” Pretty Female Repairman ” tells us.
12V-2×6: thicker pins, a band-aid on a wooden leg or a real solution?
A video shows the technician changing the sixteen-pin connector on an ASUS RTX 5090 Astral. The board has a melted connector that needs replacing. The first step is to remove the heatsink from the board and unsolder the original connector. After cleaning up close to the board, we are shown the new connector, which features visibly thicker pins.
The aim behind this is quite simply to maximize connector life by maximizing contact with the power cable. This reduces heat build-up and the risk of the connector melting, which admittedly happens quite often.
Once the new connector has been soldered, the board is reconnected and tested. The board’s power consumption is quickly pushed up to the 600W allowed by the 12V-2×6, while the temperature is taken with a thermal camera: 40 to 50°C under load, we’re good. As a reminder, Der8auer measured alarming temperatures on certain connector pins during its tests. The reason for this? A poorly distributed load across the various connectors. As a result, a large proportion of the amperage was lost, ultimately leading to the 12V-2×6’s demise.
