Definitely suspect.
You should be able to let memtest run for days with no problems, so a reboot would either be a faulty stick or possibly a faulty motherboard slot.
Swap the RAM between slots to isolate the root cause
Comment on Help diagnosing server freeze issue
swipernoswipey@piefed.social 1 week agoThank you!!! I think this is the issue. With one of the ram sticks in I can memtest just fine. With the other it never finishes and it just reboots.
Cyber@feddit.uk 1 week ago
MangoPenguin@lemmy.blahaj.zone 1 week ago
Yeah I think you found it, my server had the same symptoms and a bad RAM stick was the cause.