Great tip, thanks, found a short guide here: https://www.washington.edu/doit/tech-tips-troubleshooting-windows-linux-live
Each power on it either
Boots, shows the Windows log, freeze/lights out on keyboard after 2-3 secs
Boots, shows the Windows log0 and “Preparing Automatic Repair”, freeze/lights out on keyboard after 2-3 secs
Boots, shows black, then reboots
Also, when navigating the UEFI menu, it can freeze randomly.
So, yep, how do we know whether it’s the CPU chip, or something else on the mobo (the memory is fine I think). Once the machine is booted, it is fine for hours on end (mostly)!
