Mavericks: Native CPU/IGPU Power Management

[CybermaniaK]

Excuse me, but I don't understand this kind of tutorials. I'm Spanish and a little noob, so it's very difficult for me.

I've got an i5-3570K.

I know that the easy way is call for assistance, but I really don't know how to pass the point number 4. "Baseline". Can someone help me? Thank you!

Send me a message I also speak Spanish, maybe can help you.

 

[mendozal]

Did you reboot between step 5 and 6? ssdtPRgen.sh script depends on having the correct smbios active when it is run (read the code in ssdtPRgen.sh...)

I just redid the steps considering your suggestion.
I'm not getting those errors anymore!

May 25 09:37:45 localhost kernel[0]: XCPM: registered
May 25 09:37:45 localhost kernel[0]: IOPPF: XCPM mode

I still get high CPU frequencies tough. I'm attaching new SSDT, and other files.

Thank you.

 

[PaulAdrien]

Spoke too soon. I now get stuck at 800Mhz after a reboot. Same SSDT that was working before. see attached files.

 

[crushers82]

My results after test on MacPro6,1 is next:

May 26 18:27:32 Ibragics-Mac-Pro kernel[0]: AICPUPMI: logMSRs............................: 1May 26 18:27:32 Ibragics-Mac-Pro kernel[0]: AICPUPMI: logIGPU............................: 0
May 26 18:27:32 Ibragics-Mac-Pro kernel[0]: AICPUPMI: logCStates.........................: 1
May 26 18:27:32 Ibragics-Mac-Pro kernel[0]: AICPUPMI: logIPGStyle........................: 1
May 26 18:27:32 Ibragics-Mac-Pro kernel[0]: AICPUPMI: MWAIT C-States.....................: 4384
May 26 18:27:32 Ibragics-Mac-Pro kernel[0]: AICPUPMI: MSR_CORE_THREAD_COUNT......(0x35)  : 0x40008
May 26 18:27:32 Ibragics-Mac-Pro kernel[0]: AICPUPMI: MSR_PLATFORM_INFO..........(0xCE)  : 0x81010F0012300
May 26 18:27:32 Ibragics-Mac-Pro kernel[0]: AICPUPMI: MSR_PMG_CST_CONFIG_CONTROL.(0xE2)  : 0x1E000007
May 26 18:27:32 Ibragics-Mac-Pro kernel[0]: AICPUPMI: MSR_PMG_IO_CAPTURE_BASE....(0xE4)  : 0x10414
May 26 18:27:32 Ibragics-Mac-Pro kernel[0]: AICPUPMI: IA32_MPERF.................(0xE7)  : 0x382064B5
May 26 18:27:32 Ibragics-Mac-Pro kernel[0]: AICPUPMI: IA32_APERF.................(0xE8)  : 0x3D43B37A
May 26 18:27:32 Ibragics-Mac-Pro kernel[0]: AICPUPMI: MSR_FLEX_RATIO.............(0x194) : 0xE0000
May 26 18:27:32 Ibragics-Mac-Pro kernel[0]: AICPUPMI: MSR_IA32_PERF_STATUS.......(0x198) : 0x271200002700
May 26 18:27:32 Ibragics-Mac-Pro kernel[0]: AICPUPMI: MSR_IA32_PERF_CONTROL......(0x199) : 0x2700
May 26 18:27:32 Ibragics-Mac-Pro kernel[0]: AICPUPMI: IA32_CLOCK_MODULATION......(0x19A) : 0x0
May 26 18:27:32 Ibragics-Mac-Pro kernel[0]: AICPUPMI: IA32_THERM_STATUS..........(0x19C) : 0x88330000
May 26 18:27:32 Ibragics-Mac-Pro kernel[0]: AICPUPMI: IA32_MISC_ENABLES..........(0x1A0) : 0x850089
May 26 18:27:32 Ibragics-Mac-Pro kernel[0]: AICPUPMI: MSR_MISC_PWR_MGMT..........(0x1AA) : 0x400001
May 26 18:27:32 Ibragics-Mac-Pro kernel[0]: AICPUPMI: MSR_TURBO_RATIO_LIMIT......(0x1AD) : 0x27272727
May 26 18:27:32 Ibragics-Mac-Pro kernel[0]: AICPUPMI: IA32_ENERGY_PERF_BIAS......(0x1B0) : 0xF
May 26 18:27:32 Ibragics-Mac-Pro kernel[0]: AICPUPMI: MSR_POWER_CTL..............(0x1FC) : 0x4005F
May 26 18:27:32 Ibragics-Mac-Pro kernel[0]: AICPUPMI: MSR_RAPL_POWER_UNIT........(0x606) : 0xA1003
May 26 18:27:32 Ibragics-Mac-Pro kernel[0]: AICPUPMI: MSR_PKG_POWER_LIMIT........(0x610) : 0xA58000009F40
May 26 18:27:32 Ibragics-Mac-Pro kernel[0]: AICPUPMI: MSR_PKG_ENERGY_STATUS......(0x611) : 0xFFB7C0C
May 26 18:27:32 Ibragics-Mac-Pro kernel[0]: AICPUPMI: MSR_PKGC3_IRTL.............(0x60a) : 0x883B
May 26 18:27:32 Ibragics-Mac-Pro kernel[0]: AICPUPMI: MSR_PKGC6_IRTL.............(0x60b) : 0x8850
May 26 18:27:32 Ibragics-Mac-Pro kernel[0]: AICPUPMI: MSR_PKGC7_IRTL.............(0x60c) : 0x8857
May 26 18:27:32 Ibragics-Mac-Pro kernel[0]: AICPUPMI: MSR_PP0_CURRENT_CONFIG.....(0x601) : 0x1814149400000960
May 26 18:27:32 Ibragics-Mac-Pro kernel[0]: AICPUPMI: MSR_PP0_POWER_LIMIT........(0x638) : 0xA580
May 26 18:27:32 Ibragics-Mac-Pro kernel[0]: AICPUPMI: MSR_PP0_ENERGY_STATUS......(0x639) : 0x6DCDF3A
May 26 18:27:32 Ibragics-Mac-Pro kernel[0]: AICPUPMI: MSR_PP0_POLICY.............(0x63a) : 0x0
May 26 18:27:32 Ibragics-Mac-Pro kernel[0]: AICPUPMI: MSR_CONFIG_TDP_NOMINAL.....(0x648) : 0x23
May 26 18:27:32 Ibragics-Mac-Pro kernel[0]: AICPUPMI: MSR_CONFIG_TDP_LEVEL1......(0x649) : 0x1E0000000000000
May 26 18:27:32 Ibragics-Mac-Pro kernel[0]: AICPUPMI: MSR_CONFIG_TDP_LEVEL2......(0x64a) : 0x1E0000000000000
May 26 18:27:32 Ibragics-Mac-Pro kernel[0]: AICPUPMI: MSR_CONFIG_TDP_CONTROL.....(0x64b) : 0x80000000
May 26 18:27:32 Ibragics-Mac-Pro kernel[0]: AICPUPMI: MSR_TURBO_ACTIVATION_RATIO.(0x64c) : 0x0
May 26 18:27:32 Ibragics-Mac-Pro kernel[0]: AICPUPMI: MSR_PKG_C2_RESIDENCY.......(0x60d) : 0x794AE5114
May 26 18:27:32 Ibragics-Mac-Pro kernel[0]: AICPUPMI: MSR_PKG_C3_RESIDENCY.......(0x3f8) : 0x820C0EED2
May 26 18:27:32 Ibragics-Mac-Pro kernel[0]: AICPUPMI: MSR_PKG_C6_RESIDENCY.......(0x3f9) : 0xD6E345028F
May 26 18:27:32 Ibragics-Mac-Pro kernel[0]: AICPUPMI: MSR_PKG_C7_RESIDENCY.......(0x3fa) : 0x0
May 26 18:27:32 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU Low Frequency Mode.............: 1600 MHz
May 26 18:27:32 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU Maximum non-Turbo Frequency....: 3500 MHz
May 26 18:27:32 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU Maximum Turbo Frequency........: 3900 MHz
May 26 18:27:33 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU P-States [ (39) ]
May 26 18:27:33 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU C3-Cores [ 0 1 4 6 7 ]
May 26 18:27:33 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU C6-Cores [ 0 1 2 4 5 7 ]
May 26 18:27:33 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU C7-Cores [ 0 1 2 4 5 7 ]
May 26 18:27:33 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU C3-Cores [ 0 1 3 4 6 7 ]
May 26 18:27:33 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU C6-Cores [ 0 1 2 3 4 5 6 7 ]
May 26 18:27:33 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU C7-Cores [ 0 1 2 3 4 5 7 ]
May 26 18:27:34 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU P-States [ (37) 38 39 ]
May 26 18:27:34 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU C3-Cores [ 0 1 2 3 4 6 7 ]
May 26 18:27:34 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU C3-Cores [ 0 1 2 3 4 5 6 7 ]
May 26 18:27:35 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU C7-Cores [ 0 1 2 3 4 5 6 7 ]
May 26 18:27:46 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU P-States [ (16) 28 37 38 39 ]
May 26 18:27:47 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU P-States [ (16) 21 28 37 38 39 ]
May 26 18:27:47 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU P-States [ (16) 17 21 28 37 38 39 ]
May 26 18:27:48 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU P-States [ (16) 17 20 21 28 37 38 39 ]
May 26 18:27:48 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU P-States [ (16) 17 18 20 21 28 37 38 39 ]
May 26 18:27:49 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU P-States [ (16) 17 18 20 21 22 28 37 38 39 ]
May 26 18:27:49 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU P-States [ (16) 17 18 20 21 22 23 28 37 38 39 ]
May 26 18:27:51 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU P-States [ (16) 17 18 19 20 21 22 23 28 37 38 39 ]
May 26 18:27:52 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU P-States [ 16 17 18 19 20 21 22 23 26 28 (30) 37 38 39 ]
May 26 18:27:53 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU P-States [ (16) 17 18 19 20 21 22 23 26 27 28 30 37 38 39 ]
May 26 18:27:54 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU P-States [ (16) 17 18 19 20 21 22 23 24 26 27 28 30 37 38 39 ]
May 26 18:27:57 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU P-States [ 16 17 18 19 20 21 22 23 24 (25) 26 27 28 30 37 38 39 ]
May 26 18:27:59 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU P-States [ (16) 17 18 19 20 21 22 23 24 25 26 27 28 30 34 37 38 39 ]
May 26 18:28:00 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU P-States [ 16 17 18 19 20 21 22 23 24 25 26 27 28 (30) 31 34 37 38 39 ]
May 26 18:28:25 localhost kernel[0]: AICPUPMI: v3.3 Copyright © 2012-2014 Pike R. Alpha. All rights reserved
May 26 18:28:25 localhost kernel[0]: AICPUPMI: logMSRs............................: 1
May 26 18:28:25 localhost kernel[0]: AICPUPMI: logIGPU............................: 0
May 26 18:28:25 localhost kernel[0]: AICPUPMI: logCStates.........................: 1
May 26 18:28:25 localhost kernel[0]: AICPUPMI: logIPGStyle........................: 1
May 26 18:28:25 localhost kernel[0]: AICPUPMI: MWAIT C-States.....................: 4384
May 26 18:28:25 localhost kernel[0]: AICPUPMI: MSR_CORE_THREAD_COUNT......(0x35)  : 0x40008
May 26 18:28:25 localhost kernel[0]: AICPUPMI: MSR_PLATFORM_INFO..........(0xCE)  : 0x81010F0012300
May 26 18:28:25 localhost kernel[0]: AICPUPMI: MSR_PMG_CST_CONFIG_CONTROL.(0xE2)  : 0x1E000007
May 26 18:28:25 localhost kernel[0]: AICPUPMI: MSR_PMG_IO_CAPTURE_BASE....(0xE4)  : 0x10414
May 26 18:28:25 localhost kernel[0]: AICPUPMI: IA32_MPERF.................(0xE7)  : 0xD76915816
May 26 18:28:25 localhost kernel[0]: AICPUPMI: IA32_APERF.................(0xE8)  : 0xD56A833B7
May 26 18:28:25 localhost kernel[0]: AICPUPMI: MSR_FLEX_RATIO.............(0x194) : 0xE0000
May 26 18:28:25 localhost kernel[0]: AICPUPMI: MSR_IA32_PERF_STATUS.......(0x198) : 0x248200002700
May 26 18:28:25 localhost kernel[0]: AICPUPMI: MSR_IA32_PERF_CONTROL......(0x199) : 0x2700
May 26 18:28:25 localhost kernel[0]: AICPUPMI: IA32_CLOCK_MODULATION......(0x19A) : 0x0
May 26 18:28:25 localhost kernel[0]: AICPUPMI: IA32_THERM_STATUS..........(0x19C) : 0x882E0000
May 26 18:28:25 localhost kernel[0]: AICPUPMI: IA32_MISC_ENABLES..........(0x1A0) : 0x850089
May 26 18:28:25 localhost kernel[0]: AICPUPMI: MSR_MISC_PWR_MGMT..........(0x1AA) : 0x400001
May 26 18:28:25 localhost kernel[0]: AICPUPMI: MSR_TURBO_RATIO_LIMIT......(0x1AD) : 0x27272727
May 26 18:28:25 localhost kernel[0]: AICPUPMI: IA32_ENERGY_PERF_BIAS......(0x1B0) : 0xF
May 26 18:28:25 localhost kernel[0]: AICPUPMI: MSR_POWER_CTL..............(0x1FC) : 0x4005F
May 26 18:28:25 localhost kernel[0]: AICPUPMI: MSR_RAPL_POWER_UNIT........(0x606) : 0xA1003
May 26 18:28:25 localhost kernel[0]: AICPUPMI: MSR_PKG_POWER_LIMIT........(0x610) : 0xA58000009F40
May 26 18:28:25 localhost kernel[0]: AICPUPMI: MSR_PKG_ENERGY_STATUS......(0x611) : 0x1638106
May 26 18:28:25 localhost kernel[0]: AICPUPMI: MSR_PKGC3_IRTL.............(0x60a) : 0x883B
May 26 18:28:25 localhost kernel[0]: AICPUPMI: MSR_PKGC6_IRTL.............(0x60b) : 0x8850
May 26 18:28:25 localhost kernel[0]: AICPUPMI: MSR_PKGC7_IRTL.............(0x60c) : 0x8857
May 26 18:28:25 localhost kernel[0]: AICPUPMI: MSR_PP0_CURRENT_CONFIG.....(0x601) : 0x1814149400000960
May 26 18:28:25 localhost kernel[0]: AICPUPMI: MSR_PP0_POWER_LIMIT........(0x638) : 0xA580
May 26 18:28:25 localhost kernel[0]: AICPUPMI: MSR_PP0_ENERGY_STATUS......(0x639) : 0x113648E
May 26 18:28:25 localhost kernel[0]: AICPUPMI: MSR_PP0_POLICY.............(0x63a) : 0x0
May 26 18:28:25 localhost kernel[0]: AICPUPMI: MSR_CONFIG_TDP_NOMINAL.....(0x648) : 0x23
May 26 18:28:25 localhost kernel[0]: AICPUPMI: MSR_CONFIG_TDP_LEVEL1......(0x649) : 0x1E0000000000000
May 26 18:28:25 localhost kernel[0]: AICPUPMI: MSR_CONFIG_TDP_LEVEL2......(0x64a) : 0x1E0000000000000
May 26 18:28:25 localhost kernel[0]: AICPUPMI: MSR_CONFIG_TDP_CONTROL.....(0x64b) : 0x80000000
May 26 18:28:25 localhost kernel[0]: AICPUPMI: MSR_TURBO_ACTIVATION_RATIO.(0x64c) : 0x0
May 26 18:28:25 localhost kernel[0]: AICPUPMI: MSR_PKG_C2_RESIDENCY.......(0x60d) : 0x0
May 26 18:28:25 localhost kernel[0]: AICPUPMI: MSR_PKG_C3_RESIDENCY.......(0x3f8) : 0x0
May 26 18:28:25 localhost kernel[0]: AICPUPMI: MSR_PKG_C6_RESIDENCY.......(0x3f9) : 0x0
May 26 18:28:25 localhost kernel[0]: AICPUPMI: MSR_PKG_C7_RESIDENCY.......(0x3fa) : 0x0
May 26 18:28:25 localhost kernel[0]: AICPUPMI: CPU Low Frequency Mode.............: 1600 MHz
May 26 18:28:25 localhost kernel[0]: AICPUPMI: CPU Maximum non-Turbo Frequency....: 3500 MHz
May 26 18:28:25 localhost kernel[0]: AICPUPMI: CPU Maximum Turbo Frequency........: 3900 MHz
May 26 18:28:25 localhost kernel[0]: AICPUPMI: CPU P-States [ (16) 34 39 ]
May 26 18:28:25 localhost kernel[0]: AICPUPMI: CPU C3-Cores [ 0 1 ]
May 26 18:28:25 localhost kernel[0]: AICPUPMI: CPU C6-Cores [ 0 2 3 7 ]
May 26 18:28:25 localhost kernel[0]: AICPUPMI: CPU C7-Cores [ 0 3 4 5 7 ]
May 26 18:28:25 localhost kernel[0]: AICPUPMI: CPU P-States [ (16) 25 34 39 ]
May 26 18:28:25 localhost kernel[0]: AICPUPMI: CPU C3-Cores [ 0 1 4 6 7 ]
May 26 18:28:25 localhost kernel[0]: AICPUPMI: CPU C6-Cores [ 0 1 2 3 4 5 6 7 ]
May 26 18:28:25 localhost kernel[0]: AICPUPMI: CPU C7-Cores [ 0 2 3 4 5 6 7 ]
May 26 18:28:25 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU P-States [ (16) 25 34 37 39 ]
May 26 18:28:25 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU C3-Cores [ 0 1 4 5 6 7 ]
May 26 18:28:25 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU C7-Cores [ 0 1 2 3 4 5 6 7 ]
May 26 18:28:26 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU P-States [ 16 25 34 36 37 (39) ]
May 26 18:28:26 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU C3-Cores [ 0 1 2 4 5 6 7 ]
May 26 18:28:26 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU C3-Cores [ 0 1 2 3 4 5 6 7 ]
May 26 18:28:27 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU P-States [ (16) 25 34 36 37 38 39 ]
May 26 18:28:30 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU P-States [ 16 25 34 (35) 36 37 38 39 ]
May 26 18:28:31 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU P-States [ (16) 24 25 34 35 36 37 38 39 ]
May 26 18:28:32 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU P-States [ 16 24 (25) 26 34 35 36 37 38 39 ]
May 26 18:28:33 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU P-States [ (16) 22 24 25 26 34 35 36 37 38 39 ]
May 26 18:28:33 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU P-States [ (16) 22 23 24 25 26 34 35 36 37 38 39 ]
May 26 18:28:40 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU P-States [ 16 22 23 24 25 26 (30) 34 35 36 37 38 39 ]
May 26 18:28:45 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU P-States [ (16) 22 23 24 25 26 27 30 34 35 36 37 38 39 ]
May 26 18:28:50 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU P-States [ (16) 22 23 24 25 26 27 30 33 34 35 36 37 38 39 ]
May 26 18:28:52 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU P-States [ (16) 22 23 24 25 26 27 28 30 33 34 35 36 37 38 39 ]
May 26 18:28:54 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU P-States [ 16 17 22 23 24 (25) 26 27 28 30 33 34 35 36 37 38 39 ]
May 26 18:28:55 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU P-States [ (16) 17 22 23 24 25 26 27 28 30 31 33 34 35 36 37 38 39 ]
May 26 18:28:56 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU P-States [ 16 17 18 22 23 24 (25) 26 27 28 30 31 33 34 35 36 37 38 39 ]
May 26 18:28:57 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU P-States [ (16) 17 18 22 23 24 25 26 27 28 29 30 31 33 34 35 36 37 38 39 ]
May 26 18:29:02 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU P-States [ 16 17 18 19 22 23 24 (25) 26 27 28 29 30 31 33 34 35 36 37 38 39 ]
May 26 18:29:09 Ibragics-Mac-Pro kernel[0]: AICPUPMI: CPU P-States [ (16) 17 18 19 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 ]
Ibragics-Mac-Pro:~ ibragicelvir$

Console:

5/26/14 18:21:12.000 kernel[0]: XCPM: registered
5/26/14 18:21:12.000 kernel[0]: IOPPF: XCPM mode

I attached my file down.

Thanks in advance

 

[manHands]

Load Optimized Defaults

There is an additional BIOS step necessary for proper PM on the Gigabyte GA-Z87X-UD5H board with F9 bios. This may affect other Z87 Gigabyte boards/bios also. The default Uncore Ratio setting of 35 breaks PM. In fact within Windows and the Intel XTU, you see that the Uncore is actually running at 3.9 GHz.

​

By manually changing the Uncore Ratio to 39 (or any # other than 35), proper PM is restored. This post here is no longer valid; feel free to delete. I've tested multiple sets of RAM at various speeds, XMP profiles On/Off, and proper PM remains as long as the Uncore Ratio is changed.

​

NOTE - Every other step in toleda's guide still needs to be followed to enable XCPM mode for proper PM. I now get every step from 8 - 39 and IPG confirms this. Hopefully this post will help someone else.

Cheers!

 

[mendozal]

There is an additional BIOS step necessary for proper PM on the Gigabyte GA-Z87X-UD5H board with F9 bios. This may affect other Z87 Gigabyte boards/bios also. The default Uncore Ratio setting of 35 breaks PM. In fact within Windows and the Intel XTU, you see that the Uncore is actually running at 3.9 GHz.

View attachment 94035

View attachment 94034

View attachment 94036


​

By manually changing the Uncore Ratio to 39 (or any # other than 35), proper PM is restored. This post here is no longer valid; feel free to delete. I've tested multiple sets of RAM at various speeds, XMP profiles On/Off, and proper PM remains as long as the Uncore Ratio is changed.

View attachment 94040

View attachment 94041
​

NOTE - Every other step in toleda's guide still needs to be followed to enable XCPM mode for proper PM. I now get every step from 8 - 39 and IPG confirms this. Hopefully this post will help someone else.

Cheers!

Did you change this value after generating SSDT file or before?

 

[manHands]

Did you change this value after generating SSDT file or before?

I tried before and after. Proper PM either way.

 

[mbrettweigel]

Managed to finally get XCPM working after making a few SSDT edits indicated that relate to inappropriate P states. However, an interesting side effect is that Time Machine automatic backups fail.

This is one entry from the console log: 5/25/14 12:57:07.725 AM com.apple.backupd[2613]: Not starting automatic Time Machine backup: High system thermal level.

I have no idea why this would be, but on a hunch (the SSDT is the only thing that changed) I restored the original SSDT (without the previous edits) and turned off the Clover -xcpm flag and now Time Machine is happy again.

I'm using a Gigabyte Q77M-D2H motherboard with an Intel Core i7-3770 along with the latest Clover v2771 boot loader. My system is setup as an iMac 13,2 smbios.

Just for grins I'm attaching the ssdtPRGen.sh .aml files both xcpm and non xcpm. The .edited.aml file is the result of removing
the 'extra' speed state indicated elsewhere in this thread.

Now the real question is: Why would the SSDT cause Time Machine to see a 'High Thermal State'?

 

[mendozal]

Applied this and now the freq graph looks very different
I'm attaching before and after screenshots

MB GA-Z87X-UD7 TH
i7-4770K

There is an additional BIOS step necessary for proper PM on the Gigabyte GA-Z87X-UD5H board with F9 bios. This may affect other Z87 Gigabyte boards/bios also. The default Uncore Ratio setting of 35 breaks PM. In fact within Windows and the Intel XTU, you see that the Uncore is actually running at 3.9 GHz.

View attachment 94035

View attachment 94034

View attachment 94036


​

By manually changing the Uncore Ratio to 39 (or any # other than 35), proper PM is restored. This post here is no longer valid; feel free to delete. I've tested multiple sets of RAM at various speeds, XMP profiles On/Off, and proper PM remains as long as the Uncore Ratio is changed.

View attachment 94040

View attachment 94041
​

NOTE - Every other step in toleda's guide still needs to be followed to enable XCPM mode for proper PM. I now get every step from 8 - 39 and IPG confirms this. Hopefully this post will help someone else.

Cheers!

 

[PikeRAlpha]

Applied this and now the freq graph looks very different
I'm attaching before and after screenshots

MB GA-Z87X-UD7 TH
i7-4770K

I looked at the MSR log from AppleIntelCPUPowerManagementInfo.kext and the only things that triggered my attention is the turbo ratio's. All of them being set to 39 is not optimal, because then any turbo request will result in 3.9 GHz. Not to mention that Apple's power management relies on some of the values.

Try setting the single-core ratio back to 36 and the core ratio back to 35/auto.