This motherboard is a very good one! Use alternate white and black PCI-E 1X connectors from it, I use it with Pentium G4560, rock solid!
Intel LAN chipset offers minimum latency, (much lower latency than Realtek or other shits) and minimum invalid shares from all motherboards that I owned/used.

With 8 cards installed, I never used extra power supply for 2 molex connectors on motherboard, and never had any problems.