In a way yes, I have 6 rx 580 and two power supplies of 1000w, but I would like the 6 to work with a single power supply
Because that way I avoid having to bridge the power suplies
Because that way I avoid having to bridge the power suplies
You are risking your GPUs, entire mining rig, and even your house by running 6x 580s on a single 1000w PSU. Even with BIOS mods and extreme undervolting, you still risk overloading your PSU and it may explode or catch fire. Either sell those 2 PSUs and get a good quality 1200w PSU or simply bridge both of your power supplies.
Trying to save on power consumption by eliminating PCIE connections is also not an option.
You can do 6 of the RX series GPUs with a 1000Watt PSU no problem. With a proper undervolt it should consume about 900 Watts or so.
If you have a quality brand then running it at that load should be no problem, also keep in mind that about 10% of that is losses in the PSU itself so in reality it uses only 800 Watts or so.
Regarding the PCIe riser power he should just connect those to the molex connections and the rest to the unused +12V and +5V wires he has left from the modular connections.
