Hi, I have an issue that is really stumping me. I have a MSI B450 -A pro max motherboard and for some reason I cannot get a graphics card to work with it through a riser. If I plug the graphics card directly into the motherboard, I get display and everything works fine. If I use a riser, the card lights up and the fans spin but the motherboard doesn't detect it. I've tried with 3 different graphics cards and 2 different brands of known working risers to rule that out. Is it perhaps a bios setting blocking the motherboard from using a graphics card when it's using a riser?