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mrench01

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About mrench01

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    InsanelyMac Protégé
  1. FIXED IT!!! Woot! I ended up using custom kext files for a Sapphire HD 6850 that fixed all my issues. This file was created by the user macosx1073 over at the OSX86.net forum. http://www.osx86.net/downloads.php?do=file&id=2908 I can tell you 100% that your Sapphire HD 6850 kext files works for the MSI HD 6870 Twin Frozr II 1Gb model. I even have both video cards (2x 6870's) running with the X-Fire bridge cable connected and they are both recognized by Mountain Lion 10.8. All of the DVI and HDMI ports work on both cards. (of course ATI X-Fire isn't supported in Mac OS) I don't have anything to connect to the mini Display port so I can't test it. Thanks very much. After 40hrs of work and multiple re-installs of Mountain Lion I am up and running. Everything but sleep works so far. I will work on that problem later. Sleep = Kernel Panic so far.
  2. How can I modify the boot loader (Chameleon) to automatically use the flags once I figure out what actually works? Thanks again! Mike R
  3. Tried both AtiConfig flags. Still won't boot with GraphicsEnabler=Yes. Just stalls at the white Apple logo screen with the spinning wheel.
  4. Tried both, still no go. Thanks for all the help. From what I can read it seems ML is flaky with which 8670's it wants to play with. Very unusual since it was working 100% in Lion. Mike R
  5. I have the ATI HD 6870 Twin Frozr II 1Gb version and it doesn't work. I installed ML using Tonymac86's ###### / ######. I can only boot into Mountain Lion 10.8 if I set GraphicsEnabler=No I tried the procedure of removing and reinstalling the ATI6000 files, still no luck. I even tried deleting all of the ATI kext files and replacing them with the Lion 10.7.4 versions. Still no luck. I can only boot if GE=No. Any help would be much appreciated! Mike R BTW, this card worked fully in Lion 10.7.4. As a matter of fact I have 2x ATI HD 6870's installed with the X-Fire bridge and Lion would boot no problem. Of course there is no ATI X-Fire support in Mac OS X, but the OS system profiler could identify both cards and both worked 100% I have no idea why these won't work in Mountain Lion. i5 2500k GA-Z68X-UD3H-B3 (F9 BIOS) 16Gb RAM MSI HD 6870 Twin Frozr II (1Gb) I have the custom DSDT for my motherboard and still no luck with the video card.
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