From my Reddit post https://www.reddit.com/r/buildapc/comments/g2mtat/asrock_b450m_hdvr40_wont_boot/
ASRock b450m hdv,-r4.0 motherboard,
Amd ryzen 3 2200g,
Gskill 2x4 3200mhz ram,
I have replaced everything but the case
I have used this computer for about 6 months and one day it doesn't boot. I go throught all the regular troubleshooting steps. Reseat the ram, cables, plug in the case speaker and listen for beeps. Remove all the ram and listen for beeps. Nothing. So I thought "must be the motherboard" so I check and it still has warranty so I send it to ASRock and they send a new one back with updated bios to make sure that wasn't a problem as well. I put it all back together and I have the same issue. The fans spin and no beeps. I do the same troubleshooting steps to no avail. So I send the CPU back to amd. I got that back today and it STILL has the same issue. My question is what do I do now? Do I request a boot kit do I replace something else? I don't know what to do at this point.