As the title suggests. I have a dell R930. 4x Intel Xeon 8890 v4’s 512 gb ram

9x 2tb SSD’s 2x SAS spinners in raid 1 for the OS 4x nvme 2tb in asus pcie card

4x 1100 watt redundant psu’s

Nvidia 1650 on pcie

Additional SAS controller and SAS expander

Rack mount slides in the garage. Been running for a bit over a year. Everything works fine.

Maybe 16 VM’s running all the time.

Everything has been running fine for months.

The last two days it has randomly powered down 3 times.

In Idrac - literally nothing of interest. Temps are fine. No unusual logs. Says system shutdown normally.

In proxmox - it says “power button pressed” And everything shutdown properly.

But no one pressed the button. I am 100% sure no one pressed it. I put something over the button to make sure of that.

Any ideas where to even start? I know…update bios update firmware etc. but something seems a bit off with this.

No changes have been made to bios or firmware in a long time. And I can’t really afford to randomly have this server just deciding to shutdown.