Mac Pro shutdown instead of sleep

[kasuja00]

Hello,

my Mac Pro (mid 2012, 10.12.6) since few days shutdown instead of sleeping. I tried to reset SMC and PRAM without solving the problem.

The message sent by kernet is:
Previous Shutdown Cause: 0

What can i do? Thank you!

 

[kasuja00]

I tried to reset SMC and boot a clean 10.13 from another partition. My cMP going to sleep correctly. But if i reboot under 10.12.6 after 2 or 3 days it shutdown instead of sleep.

 

[kasuja00]

Yesterday i updated Sierra partition to High Sierra 10.13.5. I also updated Nvidia Driver.

After this update my Mac Pro can't go to sleep, but turn off with a red led flash 1 time.

My Mac Pro is a 6 core 3.33Ghz with Gtx 780. I have Adobe CC and my Sierra boot SSD (Samsung 850) is on a OWC Accelsior S.

 

[expede]

Could be a Firmware thing or SMC thing. Is the SMC on the two boards the same? Try to update them. Or more easy thing would be to strip the machine down to its original configuration and work from there. Take an old HD and do a clean install of Sierra, where as High Sierra is not final.

/Per

Yesterday i updated Sierra partition to High Sierra 10.13.5. I also updated Nvidia Driver.

After this update my Mac Pro can't go to sleep, but turn off with a red led flash 1 time.

My Mac Pro is a 6 core 3.33Ghz with Gtx 780. I have Adobe CC and my Sierra boot SSD (Samsung 850) is on a OWC Accelsior S.

 

[kasuja00]

Could be a Firmware thing or SMC thing. Is the SMC on the two boards the same? Try to update them. Or more easy thing would be to strip the machine down to its original configuration and work from there. Take an old HD and do a clean install of Sierra, where as High Sierra is not final.

/Per

Thank you for your reply.
Yes, SMC is the same. They are:
MP51.0087.B00
1.39f11
I agree with you to start from its original configuration and reinstall every my applications from a clean Sierra Os.