Bogdanmuresan Posted October 16, 2014 Share Posted October 16, 2014 Hi there.This is my first post and i registered here looking for help. In short. Mac Pro 1.1 updated efi to 2.1 3.0GHz Quad Core processors. Mavericks 10.9.5 fresh install with Tiamo efi replaced w/o chameleon so semi-hackintosh here .working. Graphics: Slot 1 Radeon HD 7850 not working…trying to figure out how to make it work Slot 2 GeForce 7300 working The problem. I searched all over internet how to enable my radeon on Mavericks 10.9.5 and found nothing. A lot of posts but nothing works here. I folowed some tutorials i found for 10.9.0 instead replaced 2 kexts with kext drop or kext utility. Still i cant make it to work Can someone post a link with a tutorilal for my problem or to explain here step by step? Another question. Can i flash efi to this card for mac boot screen? If yes how? Thank you. Link to comment Share on other sites More sharing options...
Bogdanmuresan Posted October 16, 2014 Author Share Posted October 16, 2014 Thanks I searched google, edited DSDT…where to copy it? I have no /Extra folder. 1 Link to comment Share on other sites More sharing options...
HUSABER Posted October 16, 2014 Share Posted October 16, 2014 Thanks I searched google, edited DSDT…where to copy it? I have no /Extra folder. You use real Mac or Hackintosh? Link to comment Share on other sites More sharing options...
Bogdanmuresan Posted October 16, 2014 Author Share Posted October 16, 2014 As i say in the first post.Mac Pro 1.1 , so real mac not hackintosh pc. Link to comment Share on other sites More sharing options...
blacksheep Posted October 16, 2014 Share Posted October 16, 2014 What exactly model it is? Dual DVI + HDMI + DP or 2x mDP + DVI + HDMI? Latter works OOTB in 10.9.5 with no need of kext modding, first one could need framebuffer patching. Dump the BIOS or post radeon_bios_decode output. P.S. MP with Tiamo boot.efi isn't even a quarter-of-hackintosh Link to comment Share on other sites More sharing options...
Bogdanmuresan Posted October 17, 2014 Author Share Posted October 17, 2014 Ok.The Radeon model is Sapphire Radoen 7850 Dual-X dual dvi one hdmi P.S. MP with Tiamo boot.efi isn't even a quarter-of-hackintosh Hackintosh is better on Mac Pro? Interesting plese tell me more. Here is the GPU-Z bios dump of this card. Link to comment Share on other sites More sharing options...
blacksheep Posted October 17, 2014 Share Posted October 17, 2014 (edited) Here is the GPU-Z bios dump of this card. Where? NVM, I'll get one from tpwup. So, basically you need to revert to original 10.9.5 kexts. If the card won't work replace it with dual mDP one. Mac Pros often have problems with dual DVI Sapphire cards without mDP. Something is their BIOSes is in conflict with drivers. I have flashed 7850 and it works OK even in 10.8.5 with minor driver edits. In 10.9.5 it works OOTB. Edited October 17, 2014 by blacksheep Link to comment Share on other sites More sharing options...
Bogdanmuresan Posted October 17, 2014 Author Share Posted October 17, 2014 Sorry...here. If the card won't work replace it with dual mDP one. I have flashed 7850 and it works OK even in 10.8.5 with minor driver edits. In 10.9.5 it works OOTB. I cant change it i have yo make it to work.I just bought it. Flashed with efi for bootscreen? How you do that? RadeonHD7850Dual-x.zip Link to comment Share on other sites More sharing options...
blacksheep Posted October 18, 2014 Share Posted October 18, 2014 Your only hope then is Chameleon/Clover way with DSDT injection. You bought the wrong, most trouble some model. Flashing will make things even worse in this case. Link to comment Share on other sites More sharing options...
Bogdanmuresan Posted October 18, 2014 Author Share Posted October 18, 2014 Your only hope then is Chameleon/Clover way with DSDT injection. You bought the wrong, most trouble some model. Flashing will make things even worse in this case. Ok..ill do that..Ill install osx with chameleon…i think ill try Yosemite since its out and i just installed it on my macbook pro.. Can you direct me to a link with a guide / tutorial step by step ? Thank you. Link to comment Share on other sites More sharing options...
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