Essentially I've been using my Asrock Z77 Extreme6 board with an i5 3570k CPU and have just used HD4000 graphics. I've since wanted to add a graphics card (EVGA 650 Ti Boost). I've been going through trial and error with this trying to get it to work. I'm currently using a DSDT I patched using PJALM's patch repository, more info can be found in the tonymac post.
Every method I've tried so far generally ends with the same result: it can boot perfectly in safe mode (-x bf), however it will hang after sound assertions when I try to boot regularly. I've tried plenty of boot flags, none of which seem to help. Any feedback or help would be greatly appreciated.
submitted by ryanyesterday
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What is missing? Please comment to help! ...[source] For more info try www.iatkos.net

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