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 B560M AORUS Elite LGA 1200 Intel 11th Gen B560 Micro ATX Motherboard
GIGABYTE B560M AORUS PRO AX LGA 1200 10th/11th Intel Motherboard (No WiFi) M-atx
GIGABYTE B560M AORUS PRO AX LGA 1200 B560 M-ATX 10th/11th Intel Motherboard
NEW Gigabyte B650 AORUS ELITE AX V2 Motherboard AM5 Ryzen 9000 Ready ATX
GIGABYTE B840M AORUS ELITE WIFI6E MicroATX Motherboard AM5 DDR5 WiFi 6E AMD
Gigabyte X870 Aorus Elite WiFi 7 ICE AMD Socket AM5 Gaming UNTESTED PARTS/REPAIR
