So ever since making a new computer a few weeks ago, I have had problems with games crashing. I just ruled out that it wasn't a software problem, so I tried reconnecting my GPU and its power cables. After reconnecting it, I didn't get a display. I tried both PCIe slots and neither worked. It lights up, but no display (and I'm sure its plugged in to the monitor). Do you think it is a problem with the GPU (Asus Strix 1080ti) or Motherboard (AsRock Fatal1ty Professional Gaming)? The motherboard gives a debug code of 54 when I turn it on. I have tried clearing the CMOS as well. How can I fix this?