Question Need help

Jul 17, 2019
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My pc keep on rebooting after MB splash screen and sometimes will stay on with the cpu ezdebug light turn on but with no display.
Here is the spec of my pc:
MSI B450 A-pro
Ryzen 5 2600
Sapphire pulse rx580 8 gb
2 corsair 8gb c15
Evga 600br 80+
This pc is fairly new and also my first build, i already try many things but cant get it to work, any help is much appreciated.

Also sorry for my bad english