HT204063: How to Reset NVRAM on your Mac

Learn about How to Reset NVRAM on your Mac
Hank Iver

Q: iMac shuts down randomly

iMac (27-inch, Late 2012). iMac intermittently and for no apparent reason shuts down. Need to unplug for a few minutes, plug in for less than a minute, and then use the power-on button to reboot.

iMac, OS X El Capitan (10.11.6)

Posted on Sep 3, 2016 9:51 AM