I upgrader my gpu from a 1080ti to a 7900 xtx. In my original build, I used a riser with the 1080ti because I wanted it to be vertical. Now, I am giving my 1080ti to a friend who is building a pc. After building the pc, the gpu doesn't want to display. I tried everything from reseating ram, testing the monitor, changing cables and nothing works. Until I tried using it with a riser, then it displays. The motherboard is a MSI PRO b660m-g. Any ides as to why this is the case?