Question New PC Black Screen

Oct 17, 2020
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Hello. I just build a new PC but when i boot the PC, the fans and the LEDs are working, but there is no display on the monitor.
I tough that maybe the motherboard were DOA and i replace it by a new one, but the there is the same problem.

The components are:
CPU: Ryzen 5 3400g
MoBo: Asus B450 TUF gaming plus, (with the update to use the ryzen 3000)
RAM: Kingston Hyperx Fury DDR4 3200 Mhz 2x4GB
PSU: Aerocool Lux 650 W
Chase: Aerocool SHARD