GIGABYTE Z390 UD Intel 8th/9th Gen DDR4 LGA 1151 SATA 6Gb/s ATX Motherboard

(Ensure the24-pin ATX and8/4-pin CPU power connectors are firmly plugged into the motherboard. 6) GPU / display checksIf your CPU has onboard video, remove the discrete GPU and display from the motherboard’s video outputs to rule out GPU issues.