Shaunodon on 25 March 2025
I just remembered when researching PSUs there are some newer models that come with a 16-pin(12VHPWR) to double 8-pin(PCIe) adaptors supposedly intended for GPUs with multiple 6+2 slots. Not to be confused with the 3x(or 4x) 8-pin to 16-pin adaptors that ship with Nvidia GPUs and work the opposite way. I'm pretty sure MSI PSUs supply those cables.
It was so hard finding information to verify how reliable they are, but theoretically they should supply 600W with those two connectors alone. That would be more than enough power for 3x 8-pin GPUs, then you would only need one 6+2 connection on the PSU. I just didn't want to risk it with so little info.
