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ICH7 / USB conflict on Asrock G31M-S


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Hello !

 

I was able to set up Snow Leopard 10.6.7 on my Asrock G31M-S successfully.

However, I have to disable Legacy USB from BIOS settings or USB 2.0 to make OSX start. Otherwise, I get a HPET error.

 

I read on this topic that this issue would be related to a ICH7/USB 2.0 conflict. I also heard that it is possible to edit DSDT to maybe fix this kind of HPET error, but I really don't know where I should start from.

 

So my question is quite simple: is this a hardware limitation ?

- If yes, I guess I won't be able to solve it ... ?

- If no, how can I fix it ?

 

Regards,

Loïs

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Here it is:

http://lois.di-qual.net/files/send_me.zip

 

Thanks for your help !

dsdt_ldiqual.zip

 

if the error continues

use

USBLegacyOff=Yes

try it

 

remove EvOreboot and Disabler

 

Use Chameleon RC5

 

add in boot.plist

<key>GeneratePStates</key>
<string>Yes</string>
<key>GenerateCStates</key>
<string>Yes</string>

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I followed these steps:

- Removed EvOreboot and Disabler

- Extracted dsdt.aml to /Extra folder

- Installed Chameleon RC5 from here

- Added the four lines you indicated

 

I get a kernel Panic with the following content:

post-475228-1306273252_thumb.jpg

 

This happens even if I disable USBLegacy in BIOS Settings, or use USBLegacyOff=Yes in bootloader options.

If I restore Disabler.kext, everything is ok.

 

Any idea ?

Thank you very much for your great help !

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I followed these steps:

- Removed EvOreboot and Disabler

- Extracted dsdt.aml to /Extra folder

- Installed Chameleon RC5 from here

- Added the four lines you indicated

 

I get a kernel Panic with the following content:

IMG_0198.JPG

 

This happens even if I disable USBLegacy in BIOS Settings, or use USBLegacyOff=Yes in bootloader options.

If I restore Disabler.kext, everything is ok.

 

Any idea ?

Thank you very much for your great help !

HPET enable in bios?

 

Use Lizard

http://www.insanelymac.com/forum/index.php...st&id=86246

look it

LIZARD.png

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Oh, sorry, I forgot to enable HPET in BIOS.

Now, OSX boots with the new DSDT, but only when LegacyUSB is disabled in BIOS.

 

When it isn't, i get a really weird Chameleon:

post-475228-1306275981_thumb.jpg

 

I tried to enable the two options in Lizard, but it doesn't change anything (as I suppose they are boot options, it's normal).

 

Any chance to get it boot with USBLegacy enabled in BIOS ?

Again, thanks for everything !

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Ok now I can't boot at all :)

 

I removed my DSDT and restored Boot.plist, but it's stuck at the middle of the boot.

I'll reinstall OSX from zero.

 

Thanks anyway ;)

ok

use the DSDT anyway

has many patches needed for a proper functioning

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