Sleep Wake Failure with iMac 5K (late 2015)

[saker200]

Hi Community,

i have sleep wake failure since a few weeks. i tried everything on the internet but did not find any solution.
I saved the crash report for you and have more informations from terminal:

System-wide power settings:

Currently in use:

standby 1

Sleep On Power Button 1

womp 1

halfdim 1

hibernatefile /var/vm/sleepimage

powernap 0

gpuswitch 2

autorestart 0

networkoversleep 0

disksleep 10

sleep 0 (sleep prevented by useractivityd)

autopoweroffdelay 28800

hibernatemode 0

autopoweroff 1

ttyskeepawake 1

displaysleep 10

standbydelay 10800





i hope i can find some help here @MacRumors.

 

[AznTakumi]

I have the exact same problem on my iMac. I had the logic board replaced initially when I purchased my computer because it restarted every 20 min. Now my iMac has been restarting or cannot be turned back on after I put the device on sleep. I brought it into the Apple Store and now they are replacing the Logic Board. Your best bet is to just erase the whole computer and set up as new to see if the issue still happens. If it does then you are gonna need a new logic board most likely.