Hello Friends.

I need some help in speedstep on my machine (see sig) for my current
Mac OSX 10.6.4 (64) or for the 32 bit system.

Although I had been here with Slice contact by PN, but I can respect his
info DSDT nothing to do with, I'm not that professional with the matter.

I would like to use for energy saving Speedstep.

Is it my hardware ready with patches, or used, creating a DSDT for my hardware,
so Speedstep works? I would very much on the help or step by step instructions look
forward to. If someone can write in German, it would be even better.

Thank you once before and greetings to all.

Fritz122

This post has been edited by fritz122: Sep 15 2010, 09:16 PM

Hi My Friend.
What the Config of the your Hardware?

Here: My Hack-Mac
Board: MSI-P55-GD65; CPU: Intel i5-650; Chipset: Intel i5-Series;
Memory: DDR3 Corsair 1600 2x2GB; Grafic: nVidia GT9500 (1GB) PCIe

Try Chameleon 2.0 RC5: http://www.projectosx.com/forum/index.php?showtopic=1337
There's an installer by iFabio for the latest version (Trunk rev. 629 at this time) available over at InsanelyMac that you can use if you're not comfortable with installing Chameleon manually: http://forum.voodooprojects.org/index.php?topic=649
There's also a release thread over there (identical thread title) where you can learn from other people's mistakes (including mine) so make sure to read that first unless you're feeling particularly adventurous, or you just plain "know what you're doing".

Requirements:

Unmodified DSDT Processor Scope.
The CPU declarations in the DSDT Processor Scope (and any code that references or calls the CPUs elsewhere in the DSDT, if any) must match the CPU declarations in the SSDT tables that you load or generate with RC5. Any speedstepping code that you have added yourself must be removed.

AppleIntelCPUPowerManagement.kext, AppleLPC.kext and AppleHPET.kext loaded on your system.
Delete (or modify) disabler/nullcpupm.kext to get AppleIntelCPUPM.kext to load.
On some motherboards you'll need to edit the code for the HPET device in the DSDT: http://www.projectosx.com/forum/index.php?showtopic=564 (TMR, PIC and RTC edits don't hurt either).
Another HPET post: http://www.projectosx.com/forum/index.php?showtopic=886
If AppleLPC isn't loading you can use a legacy kext or device ID override in DSDT:
http://www.projectosx.com/forum/index.php?...post&p=2532

Vanilla Kernel, Intel CPU and Intel Chipset (goes without saying - though the other day a clever dude got p-states working on a board with VIA chipset by editing the HPET code in Chameleon: http://forum.voodooprojects.org/index.php/topic,1596.0.html )

Apple model identifier (in extra/smbios.plist) from a Mac model that can do speedstepping.
User 18seven posted a list of working model identifiers:
http://www.projectosx.com/forum/index.php?...post&p=2062
That list is missing some newer models though.
I'm not sure (hope someone else chimes in here) but I think that in your case (Nehalem CPU) that would be MacPro4,1.
http://www.projectosx.com/forum/index.php?...post&p=6924

This post has been edited by Gringo Vermelho: Dec 22 2010, 03:27 AM

Never use MacPro4,1! Did you have Xeon?!
 ______________2.png ( 91.23K ) Number of downloads: 151

This name is preventing iStat3 to work.

Nehalem <- iMac11,1
 ______________3.png ( 103.1K ) Number of downloads: 146

Hello,
I have a Merom Core 2 Duo T7200, and I have a few questions...
I have installed Chameleon RC5 but I dont know if it did anything about that. what should I do to enable speedstepping and How can I verify if I have speedstepping active in SL? Can you guide me? I'm not that keen in such things.
Which apple model identifier would I put in smbios.plist, just to be on the safe side?

thanks!

Hello Slice, I wanted to reply you but I ended up replying in wrong message:
anyway, see here: http://www.projectosx.com/forum/index.php?...art=#entry10865

its a bit complicate this forum

One a side note, Slice what app is that?

That's MacTracker. It's available for Windows as well.

Do what I said. Follow the very first link in my post, follow the other links, read. Ask specific questions.

Use IORegistryExplorer: http://www.insanelymac.com/forum/index.php...t&p=1525596
MSR Tools (32-bit only!)  MSR_Tools.app.zip ( 320.01K ) Number of downloads: 14

SMC Monitor: http://www.insanelymac.com/forum/index.php...amp;pid=1637647

You can use macpro3,1:
http://www.insanelymac.com/forum/index.php...t&p=1609905

This post has been edited by Gringo Vermelho: Mar 25 2011, 05:03 PM