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Sleep Problem

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I have a interesting sleep problem. I installed Mountain Lion and if I activate the sleep the following happens:


1. The Screen turns off (at the exact time) - The computer fans and drives are still running.

2. After a time (minute to 1h) the computer goes into sleep! (I can wake it up normally).


So any ideas ?



Gigabyte Z77 DS3H (F8)

Intel i5 2500K

8Gigabyte RAM

480 Watts Power Supply


ML 10.8


Edit: If there is a topic with a similar problem - please tell me the link instead of saying "use the search". I google for over 2 weeks now to get it run !

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Jep i already read this. Thats why I dont want to give up :(

SMBIOS MacPro 3,1


Well its going to sleep but not instantly ...

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Mac Pro 3,1 is for LGA775 socket and you have a LGA1155 !


You have an Ivy Bridge config so use an appropriate SMBios !


Try iMac 12,2 SMBios; you can use Chameleon Wizard to edit your actual SMBios or to create a new one !

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I read this, too. But it doesnt help :( I dont understand why its just me with that problem. Windows has no problems with sleep.


Any other ideas ?

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