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How many P-states for Core 2 Duo E6320?


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#1
Svenmike

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Does anyone know how many P-states the C2D Desktop E6320 should have? I get 2 working and I'm not sure if I got it working 100%.

Another question: Is there a tool to test C-states?

#2
Gringo Vermelho

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Tried Google?
According to this site, if your CPU is stepping G0, you should have C1E and C2E.
http://www.chiplist....g_code-SLA4U--/
Stepping B2 only has C1E.
More (only mentions stepping B2): http://www.cpu-world...c/SL/SLA4U.html

Is there a tool to test C-states?

If you have Windows installed, do like I did: http://www.efixusers...p;postcount=124
The attachment contains 32- and 64-bit binaries of pwrtest.exe from the Windows Driver Kit. I don't know if they will work without the rest of the kit installed though.
Attached File  PowerManagement.zip   171.3KB   29 downloads

#3
Svenmike

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Thanks! It seems as if I do only have 2 states. B2 stepping only has C1E, which I guess means I have C1 and C1E.
Ill give the windows tool a try and see what happens.

Currently I have p-states working (may not be the correct values...) and CSTinfo is in IOREG.... yet my sleep works, but the display's don't power back on after wake up and neither does my usb keyboard. Seems as though my C-states are not being calculated correctly. Do you know if that could be my problem?

#4
Gringo Vermelho

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I doubt your display and USB wake issues have anything to do with C-states.

What chipset is on your motherboard and what video card do you have?

Sounds like you're using "the old way" with hand edited DSDT processor scope.
Try Chameleon 2.0 RC5. Here's a quick rundown of how to set it up:
http://www.projectos...?...ost&p=10065

#5
Svenmike

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I doubt your display and USB wake issues have anything to do with C-states.

What chipset is on your motherboard and what video card do you have?

Sounds like you're using "the old way" with hand edited DSDT processor scope.
Try Chameleon 2.0 RC5. Here's a quick rundown of how to set it up:
http://www.projectos...?...ost&p=10065


I have 965P northbridge, ICH8 southbridge. I have XFX Radeon HD 4650 1GB graphics card.

I have used the RC5 method and I got the same results so I was trying to see if manually editing them would help (plus its more fun...) I'm pretty sure now that it's either a graphics card problem or USB not coded correctly in my DSDT

#6
Gringo Vermelho

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Maybe you could take a look at the USB devices in the DSDT from a real Mac that has ICH8. There's a thread over at the ProjectOSX forum with DSDTs from real Macs. Of course you'll need to find out which models used the ICH8 (2005-2006).

You could also try to find DSDT from other Hackintosh users with ICH8 and compare to yours.

There are several posts with DSDT fixes for USB on ICH10 floating around but I can't say how well those would work on the ICH8. Maybe you can compare the datasheets...urgh..gives me a headache just thinking about it.

When troubleshooting, disconnect non-essential USB devices.

Apple developer tools come with some USB debugging stuff, maybe you can do something with that, also system- and kernel.log sometimes contain information about wake and sleep events.

I learned a lot from this thread (I have an ASUS board w/ ICH10R):
http://www.insanelym...p...t&p=1280888
This thread too: http://www.insanelym...howtopic=192518

I cannot say anything meaningful about your display wake issue, I don't have any personal experience with ATI cards.

About the C-states and power management in general, try looking for posts by user 'mm67'.

Good Luck.

#7
Svenmike

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Thanks! I'm pretty sure my USB is working correctly now after some time looking at my dsdt. I'll look around for an answer.





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