Little h/w question. Running my system since some time and am on latest Ventura, running cool and stable. This started once a year ago, and now it is like once every x weeks, but it feels to be happening more and more often.
I'm using the machine all day, great, and I shut it down in the evening, not a problem. This morning I start it up, OC shows, it takes my disk as usual and starts up, the Apple logo comes up and from there reboot and this in loops.
Only way to get out of this is to force stop the machine, pull out the plug and wait like 20 seconds with the switch toggled to ON (emptying the power supply), switch off, plug in again, etc., and from there happy again for a period.
Previous time I fully re configured the BIOS settings in case some had jumped or by some miracle I had changed something. Seems that didn't help neither.
Is this a hardware problem somewhere. Machine is clean (recently opened and dusted and re positioned the cable (micro corrosion on connectors cleaning)
The full system is also on UPS and a micro power cut can't be blamed.
Dying motherboard?