Ensure the24-pin ATX and8/4-pin CPU power connectors are firmly plugged into the motherboard. If your CPU has onboard video, remove the discrete GPU and display from the motherboard’s video outputs to rule out GPU issues.
GIGABYTE Z390 UD Intel 8th/9th Gen DDR4 LGA 1151 SATA 6Gb/s ATX Motherboard
Ryzen 5 3600 & GIGABYTE X570 UD AMD Motherboard/CPU COMBO
GIGABYTE B550 UD AC ATX Motherboard AMD Socket AM4 DDR4 HDMI WIFI USB 3.2 SATA
For GIGABYTE Z490 AORUS PRO AX motherboard LGA1200 DDR4 128G HDMI ATX Tested ok
MSI MEG Z490 GODLIKE Motherboard Intel Z490 LGA 1200 DDR4 E-ATX M.2 Core USB 3.2
GIGABYTE MZ33-AR1 Motherboard 1x EPYC 9004/9005 24x DDR5 E-ATX Rev3.x *New Seale
