PC lock up issue help?

I wished I knew why this happens. Sometimes I will hear my PC fan go a little louder for a short second, then both my mouse and keyboard locks up and I have to restart. Happens every so often at random. Could be once a day, but you never really know. This is a new PC I got around Dec. 20. It’s a Ryzen 5 gaming PC with Windows 10. I have seen online others have had similar issues. I saw one setting fix on a YouTube video, tried that, and it lessened but still happens. Any thoughts of what to do, or why this is happening? Thanks.