Unisex Posted October 20, 2010 Share Posted October 20, 2010 Hi there, I want to use 3 monitors on my hackmac. Last weeks I used 2 monitors with my GF 8600GT 512MB. Now I also picked up a GF 8600GT 256MB. I used for both of my graphics an EFI-String with EFI-Studio. So if I start OSX I can just use my both monitors from the last weeks. OSX can not display something to the 3. monitor :-/ So have I to do something so use the 3rd one? Greetings, Unisex Link to comment Share on other sites More sharing options...
Unisex Posted October 25, 2010 Author Share Posted October 25, 2010 Hi, that works fine, now! but on the 3. monitor i have a black screen. is syspref i can see both cards. 2nd slot: http://cl.ly/27ddb3148e42794a5c67 1st slot: http://cl.ly/a8cb6f156b467a515911 plist: attachment black screen on 3rd monitor on 2nd slot-card someone can help pls? 8600gt_double_512mb_256mb.plist.zip Link to comment Share on other sites More sharing options...
DerLuke Posted November 6, 2010 Share Posted November 6, 2010 Same problem Help would really be appreciated. Link to comment Share on other sites More sharing options...
hascosx Posted February 25, 2011 Share Posted February 25, 2011 im luck just plug & play for 3 monitor Link to comment Share on other sites More sharing options...
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