Hi! I have this old computer that I'm using as Unraid server. It has an ASUS motherboard (MAXIMUS VI HERO), 5 HDDS, 3 SSD, all Sata, the 2.0 Phillips USB is plugged to the internal motherboard header with an adapter so it gets a little bit of airflow (I hope), all powered with a 700W EVGA PSU.

 

My problem is that at random times, without any rime or reason, regardless of hour or system load, my system reboots and it goes back to the BIOS.

The uptime can vary from weeks with no issues to barely some hours.

 

I've already tried to disable all "Fast Boot" features from the BIOS, I've ensured that the USB drive is properly configured as first boot device, and any option regarding what to do if a boot error happens is set to "continue" (like "Press F1 if error").

 

I suspect is some sort of hardware error since everything except the drives are pretty old, but I hope you can give me any suggestion.

 

The last time this happened was at 17:41:29 and I rebooted the server at 19:01:21. I've attached a syslog and diagnostics.

 

Thank you for your time!

unraid-diagnostics-20240609-1910.zipsyslog-127.0.0.1.log

Happened again. Between 20:27:23 and 20:30:56.

 

I just can't figure out why it's rebooting on its own. I might just need to get a new PSU and RMA this one, it's not even 2 years old.

 

syslog-127.0.0.1 (1).log

First thing would be to run a memtest from the boot menu for at least a couple of passes.  In conjunction with that you should also run your memory at its rated SPD speed of 1600 MT/s instead of your current XMP profile of 2133 MT/s.  All overclocks introduce instability to any system.

I'll change the memory speeds. I did a Memtest some months ago (because I was already having these problems) for 24h and it didn't found any problem. Might try it again if this keeps happening after changing the RAM to the default profile.