Couple of things: Wow. Our Mac Mini's haven't done that. But then, my first mac laptop for my "Switch" kept crashing and I needed to reboot a lot. This irritated Chris no end. Heh.

Anyway, doesn't matter about warranty for basic troubleshooting for free at the Genius Bar. You can take any Mac machine in and they'll do an initial, free, look at the machine (ipod, iphone, etc.).

You can even schedule your Mac Genius visit online.