Random Reboots & Audio Issue

[gages]

i7, 32Gb, 512Gb. 2 issues:

Last week (1x) and today (1x) the machine restarted for no reason. No panic, just shutdown, light went out, waited 15 seconds, started up again, all on its own. Both times it happened the machine was under load.

Every few days the audio output (line out) stop working and I have to unplug and plug the line out cable. I have disabled sleep, and it keeps happening.

I opened a case with Apple and they have me going to the Apple store to diagnose.

 

[gages]

Store ran diagnostics, didn't find anything, they agreed to swap the logic board (not the whole machine). They stated 3-5 biz days to do the swap, luckily I will be away for a few days.

I wonder if the power supply (ac to dc conversion) is on the logic board?
[doublepost=1547493798][/doublepost]Looks like it does

www.cultofmac.com/589416/2018-mac-mini-teardown/