No more CPU power management

Marius_rg · September 28, 2014

Not sure what exactly happened, but I noticed recently that I no longer have the CPU power management working (I get only "XCPM: registered" and no more "IOPPF: XCPM mode")

Instead, I get the bellow errors:

ACPI_SMC_PlatformPlugin::start - waitForService(resourceMatching(AppleIntelCPUPowerManagement) timed out

kernel[0]: WARNING: IOPlatformPluginUtil : getCPUIDInfo: this is an unknown CPU model 0x3c

kernel[0]: -- power management may be incomplete or unsupported

The only things that were modified in the past weeks were to update clover/update fakesmc and update bios. (using asus maximum formula Vi and i7-4790).

What can be the cause, I'm not really sure what to check first....

Allan · September 28, 2014

Try generate a SSDT with Piker's script.

Marius_rg · September 28, 2014

I generated one using -f 3600 -turbo 4000 -x 1, I have a bit of success, but...see the new messages:

28.09.2014 22:36:44,000 kernel[0]: IOPPF: XCPM mode

28.09.2014 22:36:44,000 kernel[0]: XCPM: P-state table mismatch (error:0x12)

28.09.2014 22:36:44,000 kernel[0]: X86PlatformShim::sendPStates - pmCPUControl (SETPSTATETABLE) returned 0x12

28.09.2014 22:36:44,000 kernel[0]: X86PlatformShim::start - Failed to send PStates

Also, looking into the console I see that the CPU maximum Turbo Freq is not correct, it's 3800 and it was supposed to be 4000. The P states again are not good, since it's jumping from 8 to 21. Weird.

Sep 28 22:36:42 localhost kernel[0]: AICPUPMI: CPU Low Frequency Mode.............: 800 MHz

Sep 28 22:36:42 localhost kernel[0]: AICPUPMI: CPU Maximum non-Turbo Frequency....: 3600 MHz

Sep 28 22:36:42 localhost kernel[0]: AICPUPMI: CPU Maximum Turbo Frequency........: 3800 MHz

....

Sep 28 22:37:00 localhost kernel[0]: AICPUPMI: CPU C6-Cores [ 0 1 3 4 5 6 7 ]

Sep 28 22:37:01 localhost kernel[0]: AICPUPMI: CPU C6-Cores [ 0 1 2 3 4 5 6 7 ]

Sep 28 22:37:04 localhost kernel[0]: AICPUPMI: CPU P-States [ (8) 21 24 25 27 28 29 30 31 32 33 34 35 36 37 38

Allan · September 29, 2014

Try this SSDT: SSDT.aml.zip

Marius_rg · September 29, 2014

But that SSDT it's for a i7-4770K, I'm not sure if it's ok to use since I have a different CPU (i7-4790).

Allan · September 29, 2014

Ops, sorry bro! :blush:

Use this command:

curl -o ssdtPRGen.sh https://raw.githubusercontent.com/Piker-Alpha/ssdtPRGen.sh/master/ssdtPRGen.sh
chmod +x ssdtPRGen.sh
./ssdtPRGen.sh

Marius_rg · September 29, 2014

I have a SSDT created with the scrip, see bellow. The problem is that I do not see all the P states as it's supposed.

I managed to get the correct Turbo speed by modifying the Bios, but....still not sure that I get the proper power management, looking at the AICPUPMI logs.

===

/*

* Intel ACPI Component Architecture

* AML Disassembler version 20131218-64 [Jan 8 2014]

*

* Disassembly of iASL39JDvJ.aml, Mon Sep 29 20:45:38 2014

*

* Original Table Header:

* Signature "SSDT"

* Length 0x0000088D (2189)

* Revision 0x01

* Checksum 0x06

* OEM ID "APPLE "

* OEM Table ID "CpuPm"

* OEM Revision 0x00013900 (80128)

* Compiler ID "INTL"

* Compiler Version 0x20140424 (538182692)

*/

DefinitionBlock ("iASL39JDvJ.aml", "SSDT", 1, "APPLE ", "CpuPm", 0x00013900)

{

External (_SB_.CPU0, DeviceObj)

External (_SB_.CPU1, DeviceObj)

External (_SB_.CPU2, DeviceObj)

External (_SB_.CPU3, DeviceObj)

External (_SB_.CPU4, DeviceObj)

External (_SB_.CPU5, DeviceObj)

External (_SB_.CPU6, DeviceObj)

External (_SB_.CPU7, DeviceObj)

Scope (\_SB.CPU0)

{

Method (_INI, 0, NotSerialized) // _INI: Initialize

{

Store ("ssdtPRGen version....: 13.9 / Mac OS X 10.10 (14A361p)", Debug)

Store ("target processor.....: i7-4790", Debug)

Store ("running processor....: Intel® Core i7-4790 CPU @ 3.60GHz", Debug)

Store ("baseFrequency........: 800", Debug)

Store ("frequency............: 3600", Debug)

Store ("busFrequency.........: 100", Debug)

Store ("logicalCPUs..........: 8", Debug)

Store ("maximum TDP..........: 84", Debug)

Store ("packageLength........: 33", Debug)

Store ("turboStates..........: 4", Debug)

Store ("maxTurboFrequency....: 4000", Debug)

Store ("machdep.xcpm.mode....: 1", Debug)

}

Name (APLF, Zero)

Name (APSN, 0x04)

Name (APSS, Package (0x21)

{

Package (0x06)

{

0x0FA0,

0x00014820,

0x0A,

0x2800,

0x2800

},

Package (0x06)

{

0x0F3C,

0x00014820,

0x0A,

0x2700,

0x2700

},

Package (0x06)

{

0x0ED8,

0x00014820,

0x0A,

0x2600,

0x2600

},

Package (0x06)

{

0x0E74,

0x00014820,

0x0A,

0x2500,

0x2500

},

Package (0x06)

{

0x0E10,

0x00014820,

0x0A,

0x2400,

0x2400

},

Package (0x06)

{

0x0DAC,

0x00013B65,

0x0A,

0x2300,

0x2300

},

Package (0x06)

{

0x0D48,

0x00012EE4,

0x0A,

0x2200,

0x2200

},

Package (0x06)

{

0x0CE4,

0x0001229D,

0x0A,

0x2100,

0x2100

},

Package (0x06)

{

0x0C80,

0x0001168F,

0x0A,

0x2000,

0x2000

},

Package (0x06)

{

0x0C1C,

0x00010AB9,

0x0A,

0x1F00,

0x1F00

},

Package (0x06)

{

0x0BB8,

0xFF1C,

0x0A,

0x1E00,

0x1E00

},

Package (0x06)

{

0x0B54,

0xF3B6,

0x0A,

0x1D00,

0x1D00

},

Package (0x06)

{

0x0AF0,

0xE888,

0x0A,

0x1C00,

0x1C00

},

Package (0x06)

{

0x0A8C,

0xDD91,

0x0A,

0x1B00,

0x1B00

},

Package (0x06)

{

0x0A28,

0xD2D0,

0x0A,

0x1A00,

0x1A00

},

Package (0x06)

{

0x09C4,

0xC845,

0x0A,

0x1900,

0x1900

},

Package (0x06)

{

0x0960,

0xBDEF,

0x0A,

0x1800,

0x1800

},

Package (0x06)

{

0x08FC,

0xB3CF,

0x0A,

0x1700,

0x1700

},

Package (0x06)

{

0x0898,

0xA9E3,

0x0A,

0x1600,

0x1600

},

Package (0x06)

{

0x0834,

0xA02B,

0x0A,

0x1500,

0x1500

},

Package (0x06)

{

0x07D0,

0x96A7,

0x0A,

0x1400,

0x1400

},

Package (0x06)

{

0x076C,

0x8D56,

0x0A,

0x1300,

0x1300

},

Package (0x06)

{

0x0708,

0x8438,

0x0A,

0x1200,

0x1200

},

Package (0x06)

{

0x06A4,

0x7B4C,

0x0A,

0x1100,

0x1100

},

Package (0x06)

{

0x0640,

0x7292,

0x0A,

0x1000,

0x1000

},

Package (0x06)

{

0x05DC,

0x6A09,

0x0A,

0x0F00,

0x0F00

},

Package (0x06)

{

0x0578,

0x61B2,

0x0A,

0x0E00,

0x0E00

},

Package (0x06)

{

0x0514,

0x598B,

0x0A,

0x0D00,

0x0D00

},

Package (0x06)

{

0x04B0,

0x5194,

0x0A,

0x0C00,

0x0C00

},

Package (0x06)

{

0x044C,

0x49CC,

0x0A,

0x0B00,

0x0B00

},

Package (0x06)

{

0x03E8,

0x4234,

0x0A,

0x0A00,

0x0A00

},

Package (0x06)

{

0x0384,

0x3ACA,

0x0A,

0x0900,

0x0900

},

Package (0x06)

{

0x0320,

0x338F,

0x0A,

0x0800,

0x0800

}

})

Method (ACST, 0, NotSerialized)

{

Store ("Method CPU0.ACST Called", Debug)

Store ("CPU0 C-States : 29", Debug)

Return (Package (0x06)

{

One,

0x04,

Package (0x04)

{

ResourceTemplate ()

{

Register (FFixedHW,

0x01, // Bit Width

0x02, // Bit Offset

0x0000000000000000, // Address

0x01, // Access Size

)

},

One,

Zero,

0x03E8

},

Package (0x04)

{

ResourceTemplate ()

{

Register (FFixedHW,

0x01, // Bit Width

0x02, // Bit Offset

0x0000000000000010, // Address

0x03, // Access Size

)

},

0x03,

0xCD,

0x01F4

},

Package (0x04)

{

ResourceTemplate ()

{

Register (FFixedHW,

0x01, // Bit Width

0x02, // Bit Offset

0x0000000000000020, // Address

0x03, // Access Size

)

},

0x06,

0xF5,

0x015E

},

Package (0x04)

{

ResourceTemplate ()

{

Register (FFixedHW,

0x01, // Bit Width

0x02, // Bit Offset

0x0000000000000030, // Address

0x03, // Access Size

)

},

0x07,

0xF5,

0xC8

}

})

}

Method (_DSM, 4, NotSerialized) // _DSM: Device-Specific Method

{

Store ("Method CPU0._DSM Called", Debug)

If (LEqual (Arg2, Zero))

{

Return (Buffer (One)

{

0x03

})

}

Return (Package (0x02)

{

"plugin-type",

One

})

}

Scope (\_SB.CPU1)

{

Method (APSS, 0, NotSerialized)

{

Store ("Method _SB.CPU1.APSS Called", Debug)

Return (\_SB.CPU0.APSS)

}

Method (ACST, 0, NotSerialized)

{

Store ("Method CPU1.ACST Called", Debug)

Store ("CPU1 C-States : 7", Debug)

Return (Package (0x05)

{

One,

0x03,

Package (0x04)

{

ResourceTemplate ()

{

Register (FFixedHW,

0x01, // Bit Width

0x02, // Bit Offset

0x0000000000000000, // Address

0x01, // Access Size

)

},

One,

0x03E8,

0x03E8

},

Package (0x04)

{

ResourceTemplate ()

{

Register (FFixedHW,

0x01, // Bit Width

0x02, // Bit Offset

0x0000000000000010, // Address

0x03, // Access Size

)

},

0x02,

0x94,

0x01F4

},

Package (0x04)

{

ResourceTemplate ()

{

Register (FFixedHW,

0x01, // Bit Width

0x02, // Bit Offset

0x0000000000000030, // Address

0x03, // Access Size

)

},

0x03,

0xC6,

0xC8

}

})

}

Scope (\_SB.CPU2)

{

Method (APSS, 0, NotSerialized)

{

Store ("Method _SB.CPU2.APSS Called", Debug)

Return (\_SB.CPU0.APSS)

}

Method (ACST, 0, NotSerialized)

{

Return (\_SB.CPU1.ACST ())

}

Scope (\_SB.CPU3)

{

Method (APSS, 0, NotSerialized)

{

Store ("Method _SB.CPU3.APSS Called", Debug)

Return (\_SB.CPU0.APSS)

}

Method (ACST, 0, NotSerialized)

{

Return (\_SB.CPU1.ACST ())

}

Scope (\_SB.CPU4)

{

Method (APSS, 0, NotSerialized)

{

Store ("Method _SB.CPU4.APSS Called", Debug)

Return (\_SB.CPU0.APSS)

}

Method (ACST, 0, NotSerialized)

{

Return (\_SB.CPU1.ACST ())

}

Scope (\_SB.CPU5)

{

Method (APSS, 0, NotSerialized)

{

Store ("Method _SB.CPU5.APSS Called", Debug)

Return (\_SB.CPU0.APSS)

}

Method (ACST, 0, NotSerialized)

{

Return (\_SB.CPU1.ACST ())

}

Scope (\_SB.CPU6)

{

Method (APSS, 0, NotSerialized)

{

Store ("Method _SB.CPU6.APSS Called", Debug)

Return (\_SB.CPU0.APSS)

}

Method (ACST, 0, NotSerialized)

{

Return (\_SB.CPU1.ACST ())

}

Scope (\_SB.CPU7)

{

Method (APSS, 0, NotSerialized)

{

Store ("Method _SB.CPU7.APSS Called", Debug)

Return (\_SB.CPU0.APSS)

}

Method (ACST, 0, NotSerialized)

{

Return (\_SB.CPU1.ACST ())

}

=====

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: logMSRs............................: 1

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: logIGPU............................: 0

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: logCStates.........................: 1

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: logIPGStyle........................: 1

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: MWAIT C-States.....................: 270624

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: MSR_CORE_THREAD_COUNT......(0x35) : 0x40008

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: MSR_PLATFORM_INFO..........(0xCE) : 0x80838F3012400

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: MSR_PMG_CST_CONFIG_CONTROL.(0xE2) : 0x1E000005

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: MSR_PMG_IO_CAPTURE_BASE....(0xE4) : 0x21814

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: IA32_MPERF.................(0xE7) : 0x11FE838B90

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: IA32_APERF.................(0xE8) : 0x12441AE883

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: MSR_FLEX_RATIO.............(0x194) : 0x0

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: MSR_IA32_PERF_STATUS.......(0x198) : 0x22F700002600

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: MSR_IA32_PERF_CONTROL......(0x199) : 0x2800

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: IA32_CLOCK_MODULATION......(0x19A) : 0x0

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: IA32_THERM_STATUS..........(0x19C) : 0x883C0800

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: IA32_MISC_ENABLES..........(0x1A0) : 0x850089

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: MSR_MISC_PWR_MGMT..........(0x1AA) : 0x400001

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: MSR_TURBO_RATIO_LIMIT......(0x1AD) : 0x26272828

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: IA32_ENERGY_PERF_BIAS......(0x1B0) : 0x5

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: MSR_POWER_CTL..............(0x1FC) : 0x4005F

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: MSR_RAPL_POWER_UNIT........(0x606) : 0xA0E03

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: MSR_PKG_POWER_LIMIT........(0x610) : 0x42FFFF001AFFFF

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: MSR_PKG_ENERGY_STATUS......(0x611) : 0xA8D4B8

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: MSR_PKGC3_IRTL.............(0x60a) : 0x8842

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: MSR_PKGC6_IRTL.............(0x60b) : 0x8873

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: MSR_PKGC7_IRTL.............(0x60c) : 0x8891

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: MSR_PP0_CURRENT_CONFIG.....(0x601) : 0x10141400001FFF

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: MSR_PP0_POWER_LIMIT........(0x638) : 0x0

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: MSR_PP0_ENERGY_STATUS......(0x639) : 0x70F5C1

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: MSR_PP0_POLICY.............(0x63a) : 0x0

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: MSR_CONFIG_TDP_NOMINAL.....(0x648) : 0x24

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: MSR_CONFIG_TDP_LEVEL1......(0x649) : 0x0

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: MSR_CONFIG_TDP_LEVEL2......(0x64a) : 0x0

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: MSR_CONFIG_TDP_CONTROL.....(0x64b) : 0x80000000

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: MSR_TURBO_ACTIVATION_RATIO.(0x64c) : 0x0

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: MSR_PKG_C2_RESIDENCY.......(0x60d) : 0x0

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: MSR_PKG_C3_RESIDENCY.......(0x3f8) : 0x0

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: MSR_PKG_C6_RESIDENCY.......(0x3f9) : 0x0

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: MSR_PKG_C7_RESIDENCY.......(0x3fa) : 0x0

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: CPU Low Frequency Mode.............: 800 MHz

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: CPU Maximum non-Turbo Frequency....: 3600 MHz

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: CPU Maximum Turbo Frequency........: 4000 MHz

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: CPU P-States [ (8) 36 38 ]

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: CPU C3-Cores [ 1 4 5 6 7 ]

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: CPU C7-Cores [ 1 2 3 4 5 ]

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: CPU P-States [ (8) 35 36 38 ]

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: CPU C3-Cores [ 0 1 3 4 5 6 7 ]

Sep 29 17:29:13 localhost kernel[0]: AICPUPMI: CPU C7-Cores [ 0 1 2 3 4 5 ]

Sep 29 17:29:14 localhost kernel[0]: AICPUPMI: CPU P-States [ 8 35 36 38 (39) ]

Sep 29 17:29:14 localhost kernel[0]: AICPUPMI: CPU C7-Cores [ 0 1 2 3 4 5 6 7 ]

Sep 29 17:29:14 localhost kernel[0]: AICPUPMI: CPU C3-Cores [ 0 1 2 3 4 5 6 7 ]

Sep 29 17:29:15 localhost kernel[0]: AICPUPMI: CPU C6-Cores [ 0 1 ]

Sep 29 17:29:16 localhost kernel[0]: AICPUPMI: CPU P-States [ (8) 29 35 36 38 39 ]

Sep 29 17:29:17 localhost kernel[0]: AICPUPMI: CPU P-States [ 8 29 31 35 36 38 (39) ]

Sep 29 17:29:18 localhost kernel[0]: AICPUPMI: CPU P-States [ (8) 21 29 31 35 36 38 39 ]

Sep 29 17:29:19 localhost kernel[0]: AICPUPMI: CPU P-States [ (8) 21 29 31 32 35 36 38 39 ]

Sep 29 17:29:19 localhost kernel[0]: AICPUPMI: CPU P-States [ 8 21 29 31 32 35 36 38 39 (40) ]

Sep 29 17:29:22 localhost kernel[0]: AICPUPMI: CPU P-States [ (8) 21 29 31 32 33 35 36 38 39 40 ]

Sep 29 17:29:23 localhost kernel[0]: AICPUPMI: CPU P-States [ 8 21 29 31 32 33 34 35 36 38 39 (40) ]

Sep 29 17:29:24 localhost kernel[0]: AICPUPMI: CPU P-States [ (8) 21 29 30 31 32 33 34 35 36 38 39 40 ]

Sep 29 17:29:24 localhost kernel[0]: AICPUPMI: CPU P-States [ (8) 21 22 29 30 31 32 33 34 35 36 38 39 40 ]

Sep 29 17:29:25 localhost kernel[0]: AICPUPMI: CPU P-States [ 8 21 22 29 30 31 32 33 34 35 36 37 38 39 (40) ]

Sep 29 17:29:32 localhost kernel[0]: AICPUPMI: CPU P-States [ (8) 21 22 25 29 30 31 32 33 34 35 36 37 38 39 40 ]

Sep 29 17:29:33 localhost kernel[0]: AICPUPMI: CPU P-States [ 8 21 22 25 27 29 30 31 32 33 34 35 36 37 38 39 (40) ]

Sep 29 17:29:38 localhost kernel[0]: AICPUPMI: CPU P-States [ (8) 21 22 23 25 27 29 30 31 32 33 34 35 36 37 38 39 40 ]

Sep 29 17:29:38 localhost kernel[0]: AICPUPMI: CPU P-States [ (8) 20 21 22 23 25 27 29 30 31 32 33 34 35 36 37 38 39 40 ]

Sep 29 17:29:46 Mariuss-iMac kernel[0]: AICPUPMI: CPU P-States [ (8) 20 21 22 23 25 27 28 29 30 31 32 33 34 35 36 37 38 39 40 ]

Sep 29 17:29:54 Mariuss-iMac kernel[0]: AICPUPMI: CPU C6-Cores [ 0 1 6 7 ]

Sep 29 17:29:59 Mariuss-iMac kernel[0]: AICPUPMI: CPU C6-Cores [ 0 1 3 6 7 ]

Sep 29 17:30:00 Mariuss-iMac kernel[0]: AICPUPMI: CPU C6-Cores [ 0 1 2 3 4 5 6 7 ]

Sep 29 17:30:34 Mariuss-iMac kernel[0]: AICPUPMI: CPU P-States [ (8) 20 21 22 23 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 ]

Sep 29 17:30:57 Mariuss-iMac kernel[0]: AICPUPMI: CPU P-States [ 8 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 (36) 37 38 39 40 ]

Sep 29 17:40:05 Mariuss-iMac kernel[0]: AICPUPMI: CPU P-States [ 8 10 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 (36) 37 38 39 40 ]

Sep 29 17:51:37 Mariuss-iMac kernel[0]: AICPUPMI: CPU P-States [ 8 10 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 (36) 37 38 39 40 ]

Sep 29 17:54:56 Mariuss-iMac kernel[0]: AICPUPMI: CPU P-States [ 8 10 15 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 (36) 37 38 39 40 ]

Sep 29 17:55:45 Mariuss-iMac kernel[0]: AICPUPMI: CPU P-States [ (8) 10 15 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 ]

Sep 29 17:56:45 Mariuss-iMac kernel[0]: AICPUPMI: CPU P-States [ (8) 10 15 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 ]

Allan · September 29, 2014

According to this information, you have all the states.

(8) 10 15 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

Marius_rg · September 29, 2014

Hmm, not sure how that varies...because sometimes I see less... (from 8, 20) and sometimes more (18 and bellow). Weird

Also, looking at the Intel Power Gadget...the frequency never goes bellow 1.4ghz at idle.

Allan · September 29, 2014

The maximum state only will be used when the system need.

No more CPU power management

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