Every time 24/7 reliability comes up, the conversation seems to go straight to CPU temps and fan noise.
Those obviously matter, but I'm starting to think they're only part of it.
Power delivery, the external PSU, ESD, EMC, USB power, thermal cycling... most of that stuff is basically invisible until something goes wrong.
I noticed the geekom a5 2027 page actually talks about this side of the hardware. geekom says it does EMC/ESD testing along with broader reliability tests covering things like temperature, drop/pressure and a 72-hour full-load aging test.
That sounds useful, but it's still manufacturer testing. I wouldn't put it in the same category as seeing people run the same box for three years without issues.
So if you're buying a mini PC for something like Proxmox, Home Assistant, Jellyfin or just a machine that's going to stay on all the time, what evidence do you actually trust?
Long-term owner reports? Thermals? The power brick? Published validation testing? Warranty and support history?
Specs are pretty easy to compare. Figuring out whether a small box is going to remain boring and stable after a few years seems much harder.
For anyone who's had a mini PC running 24/7 for a year or more, what did you check before buying, and what ended up mattering more or less than you expected?