I'm assembling a new build today. My MSI RX5600 requires two 8 pin PCi express connectors but the PSU has one 8 pin and one 6+2. From research I believed I could use the 6+2 for the second 8 pin. However I've noticed the 8 pin has yellow on the catch side while the 6+2 has the 3+1 black on the catch side? Am I missing something? Thanks in advance.