try connecting the video cable to the onboard video port..on most newer mb with gpu on them the onboard video port is the first video output. on your build look to see that the 4/8 pin pci power near the cpu is connected.
try connecting the video cable to the onboard video port..on most newer mb with gpu on them the onboard video port is the first video output. on your build look to see that the 4/8 pin pci power near the cpu is connected.