New
#11
You said the HDMI was plugged into the motherboard in one of your posts, OP, you care to revise that to plugged into the video card?
Details details.... :)
Swapped out the HDMI cable for another one?
Disabled in BIOS the on-board video, OK, I'd have pulled the card and checked it in another system by now, also.
are you hooking up the 8 and 6 pin connectors to the card? had to ask seen it before that they forgot to do that.