Hi i'm working on an emulator build right now and using an older pc adding a new psu to handle a gtx 960 im putting in it, currently everything works fine but the gpu isn't being detected even though the video cable (HDMI) is being run from the graphics card to the monitor. How is it possible that the video is displaying but the graphics card is not being detected? PC i'm upgrading in advance https://support.hp.com/us-en/document/c01616202