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10.8.2 disabled vt-d and bad gfx-performance

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ultrixx

ultrixx

Joined
Apr 16, 2011
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5
Motherboard
GA-P67A-UD3-U1a
CPU
i7-2600
Graphics
HD6850
Mac
  1. Mac Pro
Classic Mac
  1. SE
Mobile Phone
  1. Android
*SOLVED* 10.8.2 only works with VT-d disabled

Hi,

clean installed 10.8.2 successfully on GA-P67A-UD3-B3 /w i7-2600 after disabling vt-d in uefi.
My 6850's performance halfed in WoW and Diablo 3 and i am without vanderpool-d support. Not good!
Did Apple change something in their sandboxing-code, so that 10.8.2 gets incompatible with vt-d on my setup?

Any ideas how to resolve those issues?
Click to expand...

To be able to run 10.8.2 with VT-d enabled, /System/Library/Extensions/AppleACPIPlatform.kext has to be replaced with the 10.8.1-version.
So just grab the kext from your backup and enjoy!
 
10.8.2 now runs with VT-d enabled on GA-P67A-UD3-B3 and UEFI BIOS U1a
 
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