I built a fresh PC, but no screen

[Itamyl]

Hi!
Motherboard MSI B450 VDH PRO MAX
CPU AMD Ryzen 5500
GPU RX 580 8 GB

BOOT led is on and no screen.
I tried HDMI DP but none of them worked. Does anyone have any suggestions?

 

[Squid Surprise]

Does your motherboard have a post message (like B4, 0D, etc) showing?

If so... google that... can be almost anything - try reseating RAM (if you have multiple sticks, try one at a time), reseating GPU, etc...

 

[Nelson28]

There are a few things to check for your new PC with no display. First, verify you've plugged the monitor cable (HDMI or DP) into the graphics card and not the motherboard. This motherboard only outputs video with a CPU that has integrated graphics (like a Ryzen 3400G).
If that's correct, try reseating the graphics card and RAM, and ensure all power connections to the motherboard and GPU are secure. If you have another compatible graphics card, try swapping it in to see if the issue persists.