asrock B550 phantom gaming 4 atx board

2nd 4 pin 12 volt board socket on asrock B550 phantom gaming 4 , my power supply doesnt have this 4 pin 12volt socket , ive plugged the 6+2 behind cpu , do i need a separate 4 pin 12 volt plug for socket next to the 6+2 12 volt ?? thankyou terry ...

You need a 4+4 pin not a 6+2. 6+2 is PCIe power for GPUs. You only need either
the 8pin or the 4 pin (you don't need both) for the system to work.