Help please! I just built my pc which has a MSI b450 gaming plus, with a ryzen 3600. And it won't post. I've used the bios usb flashback feature, I downloaded the most recent bios update, put it on the usb, renamed the file to MSI.ROM updated the mobo, put everything in my PC and it won't post.
Fans are spinning and lights are on. So is the CPU ez debug light.