Can you please explain why motherboard have 5x 6pin PCI adapters? Im read somewhere that only 2 are for mb power. What are other 3? I have plan running RX 580(Use 1x 8pin pcie power connector) on it and need to know if I need 10 6/8 pin connectors or 13 ...
Sure. The motherboard has 5 X 6pin connectors but with most GPUs only 2X 6PIN connectors need to be connected, the rest of the 6PIN connectors go directly to the GPUs from the PSU. You only need to connect all the 5 x 6PIN connectors to the motherboard when you are using cards like GTX 1050 or some other GPUs that don't have 6PIN power connectors on them and draw all the power from the motherboard. So with a PSU that has 10 X 6PIN connectors, you can power the motherboard and all 8 GPUs.