Power cuts out after 2-3 hours
The iMac boots fine, works well but after 2 or 3 hours will suddenly completely cut out, as if the plug has been pulled out.
If you try to restart it’s dead.
If the unit is unplugged and left for about 15 minutes, replugging and booting works fine.
The plug and cable are seated well, I’ve done a SMU reset, and a PRAM. Apple Hardware test was clean, no joy
I’m guessing this is a faulty power supply, is there any thing else this could be caused by?