this is why bitmain should have used 8 pin PCI-E connectors instead of 6 pin.
the s3 is just at the edge of 200w per board, if you have a psu with 2 ends per cord, it will be overloaded.
its important to use a PSU that has 4 separate cables per s3.
ur right.
since my psu only have 2 pci-e, i change cpu connector (8 pin 12V) into pci-e.
its not easy to take pins out from connector, do it carefully.
there is another 12V pin at the atx connector, but its too complicated because the cable tied up as one.
drawback for this methode is unable to use psu for cpu directly.you have to reverse it before plug it to cpu.
simple way is use 4 cable psu(not 2 cable 4 connector).