How To Test for SpeedStep on Socket 1155 CPUs using MSRDumper

[jedadvd]

i7 3770 3.4 GHz

MacBookPro 8,2: MSRDumper PStatesReached: 16 21 28 32 33 34

iMac 12,1:MSRDumper PStatesReached: 16 32 33 34

Mac Pro 5,1 : MSRDumper PStatesReached: 16 32 33 34

Mac Pro 3,1 : : MSRDumper PStatesReached: 16 17 18 19 20 32 33 34

 

[jedadvd]

On My i7 3770 3.4 GHz

FADT: Restart Fix applied!
FADT: Using custom DSDT!
Found ACPI CPU: CPU0
Found ACPI CPU: CPU1
Found ACPI CPU: CPU2
Found ACPI CPU: CPU3
Found ACPI CPU: CPU4
Found ACPI CPU: CPU5
Found ACPI CPU: CPU6
Found ACPI CPU: CPU7
SSDT with CPU C-States generated successfully
P-States: min 16, max 34
Number of P-States Generated: 19
SSDT with CPU P-States generated successfully
RSDT: Added 10 SSDT table(s)
FADT: Restart Fix applied!
FADT: Using custom DSDT!
Added 10 SSDT table(s) into XSDT

 

[santitf]

i7 2600k . H67N
10.8.2
Mac Mini 5,1: 16 17 25 30 35 36 37

 

[lokicat]

i7 3770K overclocked to 4.6
iMac 12,2: 16, 46

However, I have my speedstep setup to 47, 46, 46, 46 from 1 to 4 cores respectively.

 

[aussppc]

Article: How To Test for SpeedStep on Socket 1155 CPUs using MSRDumper

E3 1230 v2
ASUS P8Z77-M PRO
Mac Pro
10.8.2

MSRDumper CoreMulti(32)
MSRDumper PStatesReached: 16 17 18 19 20 32 33 35

 

[jamdox]

You know, folks, I don't really trust the MSRDumper outputs. It would take a very long time for intermediate PStates to show up, so I don't think absence in the output implies absence in the system. But I'm open to any evidence of anything.

 

[scoliosis]

Core i5 2500K on a Gigabyte Z68P-DS3 running MacPro3,1
MSRDumper PStatesReached: 16 21 23 35 36

So that's not complete... Turns out I do get more PStates
MSRDumper PStatesReached: 16 21 22 23 24 34 35 36

Those I got by starting up Firefox, then Safari then Lightroom 4 and tried to develop some pictures.

 

[MacMan]

Article: How To Test for SpeedStep on Socket 1155 CPUs using MSRDumper

Core i5 2500K on a Gigabyte Z68P-DS3 running MacPro3,1
MSRDumper PStatesReached: 16 21 23 35 36

So that's not complete... Turns out I do get more PStates
MSRDumper PStatesReached: 16 21 22 23 24 34 35 36

Those I got by starting up Firefox, then Safari then Lightroom 4 and tried to develop some pictures.

You may never see all the P-States or it can take a very long time for it to happen. What you are seeing is good.

 

[MortenSJ]

I'm sorry, i'm a total noob, but what does these numbers mean?

Mine is Showing MSRDumper PStatesReached: 16 33

I'm using a P8H77-i and patched my Appleintelpowermanagement.kext therefor SpeedStep should work, but i'm not sure. Do i need to run some heavy programs in order to get the right result?

 

[racuerex]

Mine only says 16 35 after multiple geekbench runs and having a bunch of different stuff going on....Does that mean it is working or not?

I'm on a Z77X-UD5 with a 3770K non overclocked i7