Squeck Posted July 4, 2015 Share Posted July 4, 2015 Hello, After many years (last OS X I used was Tiger!) I've installed Yosemite on my computer. Everything is working fine, but I'm having some problems with overclocking. I generated a SSDT.aml file using ssdtPRGen.sh and placed it into /EFI/Clover/ACPI/Patched, but the processor is not going over 3.40GHz (set to 3.80 in BIOS). I'm monitoring using Intel Power Gadget. I've then tried two ways (Ivy Bridge CPU, i5-3570k): 1. using AppleIntelCPUPowerManagementInfo.kext (AsusAICPUPM = true, DropOem = true, generate PStates = false, generate CStates = false): all P-States are logged in system.log, but the turbo ones are not. 2. using XCPM (-xpcm flag at boot, KernelPm = true, AsusAICPUPM = false (and kext deleted), ssdtPRGen.sh ran with option -x 1): no P-States logged in system.log (obviously, because there is no AICPUPM kext), turbo frequencies not reached in Intel Power Monitor. Anything else I can try / have done wrong? Do I have to patch my BIOS (Asus Sabertooth Z77) even if I'm patching both the kernel and the kext in Clover? My System Monitor says iMac13,2: is this correct? Can this cause a problem? Thanks! Link to comment https://www.insanelymac.com/forum/topic/306954-cloverasus-z77ivy-bridge-no-turbo-p-states/ Share on other sites More sharing options...
Allan Posted July 4, 2015 Share Posted July 4, 2015 Try use DropOem = true + ./ssdtPRGen.sh -w 3 And you can make some tests using different SMBios, like MacPro6,1 or MacPro3,1 Link to comment https://www.insanelymac.com/forum/topic/306954-cloverasus-z77ivy-bridge-no-turbo-p-states/#findComment-2150762 Share on other sites More sharing options...
Squeck Posted July 5, 2015 Author Share Posted July 5, 2015 Fixed. After examining the log, I found out I still had NullCPUPowerManagement.kext in my system. Removed it and everything works fine (now up to 4.4GHz, using the XCPM method!) 1 Link to comment https://www.insanelymac.com/forum/topic/306954-cloverasus-z77ivy-bridge-no-turbo-p-states/#findComment-2150902 Share on other sites More sharing options...
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