I have a problem with my mac mini, and hope someone has an answer. The issue seems to be exactly(?) what this user is reporting. http://apple.stackexchange.com/ques...loops-at-apple-logo-but-can-boot-to-safe-mode Mac mini has reboot loop when running normally. -It will boot fine into safe mode (so I assume power supply is OK) -I moved the hard drive to another 2011 mac mini and HD works fine in that one (so I assume hard drive/OS OK) -Installed a new HD in "broken" mac mini, new OSX install and still have reboot loop (so probably not installed software) -I took memory out of the working Mac mini and replaced memory and still reboots (so probably not memory) -Have tried to reset NVRAM still reboot loop -Apple hardware test (AHT) passes User in the other thread said it was related to sleep, not sure how. Strangely enough, disabiliing all power saving in my account seemed to help.. not fix the problem. Occasionally, it will boot completely and I can log in and then some random time later it will restart the reboot cycle. I am at a loss now, it used to work fine, and seems to slowly have developed this reboot loop problem.