New build. No display

Thanks in advance for any advice anyone can offer. I've just built a new PC. I'm getting power to everything when I turn it on. But, I get no display on the monitor and the dram light is on solid red on the motherboard.

Build:
Cooler master h500p
Intel i7-9700k
Gigabyte z390 aorus pro
Zotac rtx 2080ti
Gskill trident z 8g x 2
Corsair 750w psu