I can't reset the NVRAM on my iMac 27"
Since two years ago I'm having random shutdown problems with my iMac. I've tried a lot of things but the last thing, because I think it can be a heat problem, was replace the HDD for a solid disc, it cools down the machine but randomly I've still having shutdown problems.
The main issue to me is that I can't reproduce the shutdowns so it's frustrating to give the machine to a technician listen from him the machine is fine...
Recently I've noticed that I can't reset the NVRAN (using CMD+OPT+P+R) because when I'm doing it the Mac wont start again and I'm wondering if that fact maybe can help for a diagnosis. What do you think?
Thanks in advance!