[SOLVED] New build, first boot showing "No Signal"

Cispa99

Commendable
Jul 26, 2020
9
1
1,525
Hello, I've assembled my new work PC with this components


MOBO: Gigabyte B450M S2H (with a sticker on the box "AMD RYZEN 3000 SERIES DESKTOP READY")
CPU: Ryzen 3 3200G
RAM: GSkill F4-3000C16D 2x8GB

I don't have external GPU

When I try to turn on the PC one LED on the case turn on and fans (CPU and one on the back of the case) spin with no problem
But there is no BEEP or other sound and it shows on the monitor NO SIGNAL (tried with HDMI and VGA)
I tried to switch RAM, tried to turn on with one RAM at once (in slot 1) and even tried to turn on without any SATA connected and without RAM but still no sound from the PC and still no video

Can anyone help me? Thanks