jeffffff Posted March 11, 2009 Share Posted March 11, 2009 Hi everyone, I've been trying different installs to get osx running on my pc here at home. the build/components are as follows: GA-ep45-ds4p mobo intel e8400 3 ghz processor ati sapphire 3850 video card 4 gigs g-skill ram sata WD 7200 rpm hard drive sata dvd drive I'm using iatkos 10.5.5 and the particular problem I have doesn't seem to be documented (at least I haven't been able to find it after spending a lot of time googling)... basically, after "successful" installs, whenever I try to start up osx I get about ten seconds of a spinning cursor and the gray apple loading screen followed by a strange-looking corrupted graphics screen and a locked machine. I am able to boot the machine into safe mode successfully but have no idea how to proceed from there to fix whatever issue is occurring. I have attached three images below... the first is the corrupted image upon normal startup, the second is the -v code that appears as close to the lockup as I could photograph and the third is the corrupted and locked-up image after startup in -v mode. Any help you all could provide would be appreciated! I am happy to answer any/all questions as I just want to get this problem solved. Thanks so much for your time! Link to comment Share on other sites More sharing options...
kulos Posted March 11, 2009 Share Posted March 11, 2009 I'm sorry, but I cant read the text in the middle picture. Can you improve the picture quality?? Did you install any drivers for the ATI card? I would choose as few drivers as possible (only the necessary ones) when installing and add graphics and audio drivers/EFI strings later! kulos Link to comment Share on other sites More sharing options...
jeffffff Posted March 11, 2009 Author Share Posted March 11, 2009 I'm sorry, but I cant read the text in the middle picture. Can you improve the picture quality?? Did you install any drivers for the ATI card? I would choose as few drivers as possible (only the necessary ones) when installing and add graphics and audio drivers/EFI strings later! kulos Apologies for the picture size... hopefully this larger image will be clearer. Re: video drivers... I have installed iatkos with the "Graphics Update" and "ATI HD 2xxx and 3xxxx" options selected, with only the "ATI HD 2xxx and 3xxxx" option selected and with neither selected. I have had similar results in each instance. Link to comment Share on other sites More sharing options...
jeffffff Posted March 12, 2009 Author Share Posted March 12, 2009 subsequent installs with different options/drivers tried out has led to similar results, though sometimes I get a hanging blue screen, not the corrupted graphics as shown earlier... any suggestions? Link to comment Share on other sites More sharing options...
jdratlif Posted March 13, 2009 Share Posted March 13, 2009 I recommend deleting (or better moving) all kexts related to ATI drivers until Mac is forced to use the VESA drivers. Then you can try to find a driver that works. Sorry I don't know any of the names. Look for things in the /System/Library/Extensions folder with ATI, Natit, Titan, or Radeon in the names. Move them to a different folder. Then delete /System/Library/Extentions.mkext and reboot. Link to comment Share on other sites More sharing options...
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