I'm not having much luck with computers just lately. My Big Beastie with the Ryzen Threadripper X2920 suddenly died and I had to take it into a techie to find out how and why.... being I have no diagnostic tools to speak of. It turns out that the mobo just up and died on me. Geez, it's not even 6 months old and it retired itself.
Anyhow, that wasn't the end of it and I got some good news. The techie sent it back to MSI and they promptly replaced it without question. Apparently there were a few others suffering the same fate.... a faulty BIOS or something. I should receive the replacement in the next couple of days, after which I shall take it into the techie to rebuild the machine for me. My hands aren't as good as they used to be, arthritis 'n all, and I don't enjoy building PCs like I used to.
The other issue was a brand new power supply that just stopped working. I installed it in my Ryzen 9 machine and I managed to set up the OS and programs without issue, but when I tried to reboot the following morning there was no power. I tried another lower powered PSU and the machine booted okay, so it wasn't the build itself, just the PSU. It is now on its way back to the seller to be replaced. Hopefully that doesn't take too long, being shipping and deliveries are often delayed in this age of Corona virus.
Oh well, all's well that ends well.