SavageAUS Posted January 16, 2016 Share Posted January 16, 2016 Im having an issue with my system where my speedsteps are not being recognized, cpu in HWInfo only shows 4ghz or 900mhz. I have generated my SSDT.aml with ssdtPRGen and placed it in EFI -> Clover -> ACPI -> Patched with no results. I have tried checking generate Pstates and Cstates in Clover (3330) to no avail. I have also tried dropoem with the generated SSDT and my system wont boot, just loads slowly then gets to black screen with circle with a line through it.. Specs in sig. Any other info can be provided. Any help would be appreciated. Link to comment Share on other sites More sharing options...
zxv Posted January 16, 2016 Share Posted January 16, 2016 Similar problem here. I've tried a few different things to get different speedsteps: Clover SSDT::Generate=YES yields 9, 13, 40, 41, 42. Setting FCLK=1GHz in BIOS yields 10, 13, 40. Using actual iMac 17,1 CPU SSDTs yields 9, 40, 42. Link to comment Share on other sites More sharing options...
hashish.k Posted January 17, 2016 Share Posted January 17, 2016 I am also having issues with speed stepping on skylake. I am not sure if yours and my problem are the same. My post is here http://www.insanelymac.com/forum/topic/309936-speed-step-not-working-after-sleep/ I don't think you can dropoem clover generated SSDT as there are other essential SSDTs that your system needs. My understanding is the clover will automatically incorporate your SSDT located in ACPI/patched. I think you can only drop 2 powermanagement related SSDT tables. please check my config.plist on which ones you can drop, as I am working on a windows machine right now. Hopefully some one will figure out skylake powermanagement as its not working fully so far. Link to comment Share on other sites More sharing options...
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