I am building a new computer with my son and am a bit confused. I am using the Asus Asus X570 TUF Gaming Wifi with AMD 3600 Processor. I went to Microcenter and they did not have the PSU I wanted so the dude recommended the NZXT C650. It has been a while since my last build so it looked good to me. When I tried connecting the wires I got a bit confused. the PSU has 1 24 pin ATX power output, 1 CPU 4+4 Power output and 3 6+2 PCI-E outputs. The Motherboard has the 24 Pin connection which is fine. But also an 8 pin and 4 pin ATX connectos that dont make sense to me at least. the PCI-e 6+2 cable does not fit into the 8 pin connector on the MB. the only connection that alllows me to power up the computer is Just connecting on of the 4 pin wires to the MB. The manual clearly states do not just connect 4 pin as the MB will overheat...its says to connect the 8 pin power plug or the 8 and 4 pin ...This is not possible with this PSU...what am I missing .. ASUS TUF Gaming MB, AMD 3600 CPU, 16 GB ddr4 ram, MSI x5700 MECH OC GPU..