Hello need help. New CPU 3900XT + old x370 CH6 Hero. Last BIOS, 02 post code VGA Error, with old CPUs 2700x and 1600x works fine, and 3900XT works on second motherboard B450 Aorus Pro with no problem, I RMA first 3900XT after recive New still don't work with C6H. Always VGA 02 error Black screen but looks like OS boot. And Yes i'm try 3 different GPUs 2080ti, 5700XT and 5500XT. Two PSU 750W G+ and 850W P+, and different RAM, last 3 versions od BIOS, Anyone here run XT Ryzen on C6H?