Is the computer a new build?
Or is this a regularly used build that has suddenly stopped working?
What is your full system spec including PSU make and model?
Please see and go through each of the steps of this guide (especially if it is a new build): https://forums.tomshardware.com/thr...ng-about-post-boot-no-video-problems.1285536/
In which case follow the guide I attached completely first.Yes it's a new build.
CPU: AMD Ryzen 5 3600
GPU: MSI Radeon RX 5700
MOBO: MSI B450 Tomahawk MAX
RAM:
G.Skill Ripjaws V F4-3200C16D-16GVKB
SSD: Crucial MX500 240GB m.2
HDD: Western Digital Blue 2TB
PSU: BitFenix Formula Gold 450w
Case: Corsair Carbide 275R