The computer hangs tightly or restarts, what's the problem?

Question

Computers

Hello!
Recently assembled a computer from completely new components. The problem is that the computer itself restarts (in games) or, which happens very rarely, freezes tightly. I started googling why this is happening. In stress tests, I checked the video card and processor, there is no overheating. Started thinking about the motherboard. I decided to test it in aida64 in the system stability test. Checked several times. On average, it lasted a minute and the computer rebooted, while the temperature of the motherboard was an average of 33 degrees. Took it to those. inspection in the dns, where they confirmed its incorrect operation and under warranty took a new one, absolutely the same. History repeated itself. Just tried to update the bios, but nothing changed and it also rebooted. What could be the problem? Is there a chance that something is wrong with the second motherboard, or is there another reason?
https://www.dns-shop.ru/custompc/configuration/cb3... - computer

Answer 1

by elimination method. Alternately change the CPU, RAM, GPU from another PC. Test only one die of the operative.
ps I changed ryzen 3600 by contacting amd directly, got a replacement in three days. The percent worked for half a year, and after that, the browser crashed when watching the stream and the system was buggy for an hour, all OS menus hung