There was a recent post on r/nvidia that got me to look into what actually makes sense to use on a GPU pulling 400-500W depending on model and bios.
At worst magic smoke, a dead GPU, and a fire hazard potentially.ĮVGA and Seasonic have been telling people it's safe to use daisy chain power cables for 3X8pin GPUs and if we look into it seems that is very very bad advice for them to give out. Always use 1 GPU power cable per 8 pin GPU power connector. TL DR - Don't use Daisy Chain cables because most of the time they're underspec and if you do the math they can pull more they're rated for easily on a 3x8pin with a 400-500W power limit that has peaks in excess of the power limit.
