Wolfered

Hi all, First time posting. Been enjoying Unraid for the last couple of years when I had some spare parts and put a small build together (i3, 1x4gb ram) It's been reasonably stable with occasional shut downs (usually power loss). But recently, it has started shutting down within 12 hours of being started. Syslog showed nothing, no shutdowns whether clean or unclean. Which made me assume it's a hardware issue. I have upgraded my main PC and had a bunch of spare parts from that so I decided to replace everything in the server PC. i7 2600k, 1x8gb RAM stick, 350w PSU, GA-Z68XP-UD3 mobo. I even moved my Unraid onto a new USB and replaced key. But still, it shuts down within 12 hours. I've attached the most recent syslog of it's 'crash', from what I can tell it says nothing unusual. I've done a memtest, it passed after about 30 minutes (should I be leaving it longer?) The server has 3 drives attached. 2x4tb for storage and 1x12tb for parity. syslog