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[SpeedStep] Can't load modified IOPlatformPluginFamily.kext

speedstep smbios ioplatformpluginfamily

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#1
todesto

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I am using MacPro 5,1 sambas and don't want to change it to other due to iCloud and iMessage log in issue.

 

I have been modifying IOPlatformPluginFamily.kext to use macmini5,1 speedstep for my i5-2500k and was working.

 

However, now with Yosemite, it won't boot with such kext.

I can load modified kext such as applertc, applehda, AGPM, etc but this kext won't load nor applied to kernel cache.

 

because of this, my system is stuck at 3.4GHz.

 

any idea?

 

Thanks in advance.



#2
Onixs

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you are aware that we need to use kext-dev-mode flag on a patched or 3rd party kext right

#3
todesto

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Yes. I do have kext-dev-mode=1 in Boot flag. 

I just can't boot, it is stuck at reboot loop.

When I boot with backup partition, delete such kext, it will boot without it.

Then when I install vanilla kext and rebuild cache, reboot, then it won't boot. Stuck at reboot again.

 

Can't figure it out.







Also tagged with one or more of these keywords: speedstep, smbios, ioplatformpluginfamily


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