Hi,

I have a brand new Optiplex 5000 SFF desktop, about a month old. Win 11 Pro 22H2. All drivers are up to date with Dell Command Update. Nothing major installed other than Office Pro 2019.

It restarts at random once a day, almost every day.

Someone could be working on it, and boom, down it goes, restarts and comes back up.

This is not a crash, not a blue screen. It's a restart. No memory.dmp. No minidump.

In fact, Startup and Recovery > System failure is set up correctly. Write memory dump. Automatically restart is UNchecked.

But it's not a crash. It's a random restart. Therefore, no memory dump.

Event log has no clue as to why it's randomly restarting. Yes, I see the classic signature of restart events in the event log, but nothing jumps out at me like Aha! this is why it restarted.

I thought it might be a power problem. So I put it on an APC battery backup and installed PowerChute. Well the battery backup isn't logging any power events, but still, down she goes! Still randomly restarting.

Anyone have an idea how to go about troubleshooting this?

Thanks in advance.