im in the buildzoid discord and we had a friend who insisted he was gonna but a crosshair impact to use with his 1700x, and he was gonna try and use every bios available until it posted. i called him crazy and said he was wasting his time, well low and behold after about 2 hours he gets it working. said it was the most recent bios. 1302 so maybe squirrel that away for future use if you want to use a zen1 cpu in your C8 Impacts yall

he hasnt been able to get his ssds detected tho. nvme or sata. so YMMV.