nyolc8 Posted July 20, 2011 Share Posted July 20, 2011 Anyone can help me to get speedstep working? I have these on the end with the bdmesg: Read HFS+ file: [hd(0,4)/Extra/DSDT.aml] 15601 bytes. Read HFS+ file: [hd(0,4)/Extra/SSDT.aml] 554 bytes. Read HFS+ file: [hd(0,4)/Extra/SSDT-1.aml] 338 bytes. Read HFS+ file: [hd(0,4)/Extra/SSDT-2.aml] 939 bytes. ACPI table not found: SSDT-3.aml FADT: Restart Fix applied! FADT: Using custom DSDT! Found ACPI CPU: CPU0 Found ACPI CPU: CPU1 Found ACPI CPU: CPU2 Found ACPI CPU: CPU3 SSDT with CPU C-States generated successfully SSDT with CPU P-States generated successfully RSDT: Added 5 SSDT table(s) Starting Darwin x86_64 (I extracted the ssdt files with Everest on Windows and just copied them to /Extra. Is this right or do I need to modify something in them?) In com.apple.Boot.plist I have <key>GeneratePStates</key><string>Yes</string> <key>GenerateCStates</key><string>Yes</string> <key>dropSSDT</key><string>Yes</string> I have this with SMC Monitor: (So there is two states - In Windows it gets down to 2000 when not used.) But the MHz is always 2666: I have these kexts (all unmodified): AppleIntelCPUPowerManagement - Loaded, Satisfied AppleIntelCPUPowerManegementClient - Loaded, Satisfied AppleHPET - Loaded, Satisfied AppleLPC - Loaded, Satisfied AppleRTC - Loaded, Satisfied What else do I need to get this work? Link to comment Share on other sites More sharing options...
Noam AA Posted July 20, 2011 Share Posted July 20, 2011 you have a working speedstep CPU-X does not display core speed, you can use SMC Monitor for this Link to comment Share on other sites More sharing options...
nyolc8 Posted July 21, 2011 Author Share Posted July 21, 2011 Thanks for the reply, and how to set SMC Monitor to see this? Cause I can't get anything from it just the p-c states. Link to comment Share on other sites More sharing options...
amit_talkin Posted September 20, 2011 Share Posted September 20, 2011 I have same problem, never seen CPU frequency dropped from 3 GHZ on my i7 950. tried various tools like SMC Monitor, MSR Dumper, TechTool etc..all shows stable 3 GHz frequency. I also have my DSDT, AppleIntelCPUPowerManagement also loading and working fine, also SMC monitor shows various P&C states info, but somehow system fails to lower the frequency! Link to comment Share on other sites More sharing options...
LucasIsEpic Posted September 20, 2011 Share Posted September 20, 2011 I have same problem, never seen CPU frequency dropped from 3 GHZ on my i7 950.tried various tools like SMC Monitor, MSR Dumper, TechTool etc..all shows stable 3 GHz frequency. I also have my DSDT, AppleIntelCPUPowerManagement also loading and working fine, also SMC monitor shows various P&C states info, but somehow system fails to lower the frequency! i'm pretty sure that i7s have an internal speedstep that does not report outside the chipset, also it means it works without kexts. i might not be right on this but I'm pretty sure Link to comment Share on other sites More sharing options...
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