SpeedStep Question

[Lordadmiral Drake]

I've installed OS X on my main rig again and I got CPUPM working with Clover. But it only switches between minimum clock and maximum clock with Turbo. SMBIOS is iMac12,1

Which SMBIOS would you recommend for me (Intel Core i5-2500K) or can I edit some files to use iMac or MacPro SMBIOS and still get all the clock steps?

[RobertX]

hi Drake, for me at least, using chameleon 2286, i had to enable P&C states in Extra/org.chameleon.boot.plist to get additional frequencies...perhaps clover has a similiar option...

[Pimentel]

Hello

 

Some times you need only activate P and C States in config.plist, but you have Sandy Bridger CPU.

 

Try this to get more states:

*Run pike's script to create a SSDT, run in terminal:

curl -o ssdtPRGen.sh https://raw.github.com/Piker-Alpha/RevoBoot/clang/i386/libsaio/acpi/Tools/ssdtPRGen.sh
chmod +x ssdtPRGen.sh
./ssdtPRGen.sh

*P and C States=No

*Patch AICPUPM, activate AsusAICPUPM in config.plist or make this manually: http://olarila.com/forum/viewtopic.php?f=9&t=1003

*DropOemSSDT=Yes

 

I hope it help

[Lordadmiral Drake]

Pimentel: I tried this with the following result:

 

When I drop OEM SSDT the system wont boot. It just hangs very soon after kernel is loaded.

When I don't drop OEM SSDT it boot up until the point where it says "P-State Stepper Error in Step 2 in CPU x" no matter if C/P state generation by Clover is on or off

[Pimentel]

Hello

Ok

But you Patch AICPUPM? Is very important too...

If yes, try remove Scope_PR from DSDT and disabler DropOEMSSDT(this work for me)

Other thing: P e C States must be disabled
 

[Lordadmiral Drake]

aicpm patch is enabled in clover. I dont have a DSDT, all patching is done by Clover

[Pimentel]

Hello

 

So try Remove PR_Scope form your DSDT...

 

A guide about how create your DSDT: http://olarila.com/forum/viewtopic.php?f=19&t=634

[Lordadmiral Drake]

Nothing worked. It either hangs at P-State Stepper Error or at AppleKeyStore ready or KP's in AICPM.kext or ACPIPlatformPlugin.kext

[Allan]

if you run this command:

curl -o ssdtPRGen.sh https://raw.github.com/Piker-Alpha/RevoBoot/clang/i386/libsaio/acpi/Tools/ssdtPRGen.sh
chmod +x ssdtPRGen.sh
./ssdtPRGen.sh

and add this in Config.plist: DropOemSSDT=Yes

 

will be generating energy twice.

what fumbled me.

 

run the command, save the file (SSDT.aml) in Clover/ACPI/patched.

and set this in config.plist:

 

DropOemSSDT=No

P and C States=No

[Lordadmiral Drake]

Sorry for the late reply, but I had a lot going on recently.

To clarify:

 

When dropping SSDT (in any way): booting stops at Apple KeyStore (only about 10 or 15 lines in verbose after kernel takes over from Clover

If I remove PR scope from DSDT (suggested fix for above issue): Kernel Panic in ACPIPlatformPlugin.kext

When not dropping SSDT (with SSDT.aml in place): P-State Stepper Error

 

System only boots when SSDT.aml is removed, PR scope is present in DSDT, C and P state generation is enabled in Clover and SSDT dropping is disabled

[Maniac10]

Don't emulate the iMac12,x model, try with MacBookPro8,x. That limitation exists in real Macs too.