Unfortunately, like all other pre-500 series motherboards, they will apparently not support PCIe gen4.
"This is an error we are correcting. Pre-X570 boards will not support PCIe Gen 4. There's no guarantee that older motherboards can reliably run the more stringent signaling requirements of...
RAM problem yes (thank you). Fixed by moving the RAM to different slots. Just re-seating it didn't help. Also, to help find bad RAM you could use just 2 sticks (assuming you have 4), to see which ones are bad. Also, no RAM gave 2 beeps.