How to figure out why my mini crashes/reboots

[bergmef]

Is there an event log or something? I leave it on all the time, good airflow around it and it's on a ups. It didn't crash for the first year but now it's almost daily. I use this one for the house itunes server so it's extra frustrating. Any ideas on what to look for? I've made no mods at all, even the RAM was from apple (when I bought it).

Thanks

 

[Cave Man]

I had that problem with a mini once. Turned out to be a bad RAM stick. I say remove one and see if it runs stably. Then run it only on the other.