Ryzen 3 1200 fans spin, no post.

LagiohX3

Prominent
Aug 9, 2017
4
0
510
Specs:
Ryzen 3 1200
Msi b350m pro-vdh
Corsair cx 450w atx psu
Team t-force vulcan ddr4 2400 8x1
Msi rx 580

I bought this system a while ago, it haven't managed to POST, i purchased a new motherboard and cpu to test. Had the same results, fan spin, lights on, but no video. The msi ezdebug leds stay always on CPU and dRAM, the new mobo doesn't have them but problem persists. Is the problem the psu even if it seems like it works (fans spin) or maybe a compatibility issue with bios? I thought it was a Bios problem with the MSI mobo, some reviews suggest only boots with ryzen 7 out of the box. New mobo is asrock AB350m-hdv, reviews seem to confirm working out of the box with ryzen 3 on Amazon. Or maybe another issue i haven't thought about. Hope some can help, thanks!