Experienced PC builder here that's not done a build for 5 years so I've probably missed something.
Asrock B550 Pro 4 (BIOS p.2.0)
Ryzen 5600G
Corsair Vengeance RGB DDR4
Debug LEDs on the motherboard cycle through and then all turn off. PC stays on. Keyboard and Mouse RGB also on. Fans spin like normal.
No display using any connection on the Motherboard outputs. Tried old GPU and still no display.
Tried with 1 stick of RAM in multiple slots.
Reseated CPU.
24 pin secure,
8 pin CPU connector secure.
Asrock B550 Pro 4 (BIOS p.2.0)
Ryzen 5600G
Corsair Vengeance RGB DDR4
Debug LEDs on the motherboard cycle through and then all turn off. PC stays on. Keyboard and Mouse RGB also on. Fans spin like normal.
No display using any connection on the Motherboard outputs. Tried old GPU and still no display.
Tried with 1 stick of RAM in multiple slots.
Reseated CPU.
24 pin secure,
8 pin CPU connector secure.