iMac reboots when used but not in (T) Target Disk Mode
First I thought it would be an PSU issue so I opened it up and had a look at the PSU but couldn’t find any obvious faults. I cleaned the board with some alcohol and reassembled it again.
Started it up and tried to login to one of the local accounts… and just seconds thereafter it reboots…
Reset the SMC but no luck
Tried to change the hard drive but no luck
Started the machine in Target Disk Mode and it is still running without any reboot… (?)
I’m kind of flabbergasted……..
Anyone any idea?