Odd issue on this gigabyte 570s pro ax motherboard. The 2 rightmost memory slots a2 and b2 dont seem to be operating correctly. The system wont even boot.
Either,
1. Slots are damaged, debris in slot
2. Cpu/socket pins are damaged/uneven socket pressure
3. Memory is bad (assuming 4 sticks, all slots populated)
If you already swapped memory around, I would check 1 and 2.