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Author Topic: Does Chameleon OR it's install MODIFY the BIOS ??  (Read 2270 times)

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vic.vmac

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Does Chameleon OR it's install MODIFY the BIOS ??
« on: January 27, 2012, 06:35:53 PM »

HAD Lion 7.2 on Intel P55 Board running fine.

* upgraded Bios
   System Crashes during  Boot  (indicating issue with AppleIntelCPUPowerManagement.kext)
   
* Reverted Bios to ORIGINAL version
  System Crashes during  Boot  (indicating issue with AppleIntelCPUPowerManagement.kext)

YES, I checked the BIOS setting after the upgrade  and subsequent downgrade, to be sure
that the setting were SAME as before.
It seems like a BIOS update changed the way the HARDWARE responds to the
very same SOFTWARE.  Bios was updated with Intel universal Bios install on USB stick.

To be SURE, I did this on two different machines and the results were the same.
Yes, if I install /Extra/Extensions/NullCPUPowerManagement.kext
Then I am able to boot, but of course  the System is Unable to SLEEP.

I could use some Words of Wisdom by someone who understands the Bigger Picture.

thanks in advance !!

-vic
« Last Edit: January 27, 2012, 06:41:29 PM by vic.vmac »

Gringo Vermelho

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Re: Does Chameleon OR it's install MODIFY the BIOS ??
« Reply #1 on: January 27, 2012, 11:24:56 PM »
Not a Chameleon issue, welcome to The Black Hole.

Yes, a BIOS upgrade or even changing BIOS settings can do that.
Make sure your BIOS settings are the same as they were when you installed OS X with the old BIOS and, if you were using a patched DSDT before upgrading your BIOS, redump your DSDT and apply the same patches to it all over again.
10.9.5 - ASUS P8Z77-V Pro - i5 3570K - GTX 660 - Chameleon 2.3 svn-r2xxx
How to...
Install Chameleon: http://forum.voodooprojects.org/index.php/topic,649
Make your own Chameleon boot CD: http://forum.voodooprojects.org/index.php/topic,484.msg2131.html#msg2131