Mageek Posted December 23, 2015 Share Posted December 23, 2015 I have managed to overcome the 32bit EFI problem and get El Capitan 10.11.2 running on my 2006 Mac Pro. Everything looks good except I have a few issues. Currently I am not using Clover or anything else in the EFI. During the boot my screen is entirely blank. I have an entirely blank screen with no apple logo. My monitor is blinking with no screen signal present until all of the sudden I have a login screen. Everything is normal from there on. This means I am blind during the boot process. The keyboard is active so I can do things like hold the option key down etc. Just can't see anything. I would like to be able to select different drives during the boot process. Is there a NVRAM setting I can use that might help? Command V does nothing. I remember reading something about needing a VGA monitor or something. Any work around out there? Also, I am using a modified NVidia GeForce GT120 with 1g memory that has two dvi plugs. I have attached a second monitor to the card. I can't get it recognized by detect button in the preference display module. Do I have to install a second video card to run two monitors? Any suggestions would be appreciated. Link to comment Share on other sites More sharing options...
PPCnostalgic Posted December 23, 2015 Share Posted December 23, 2015 Your Graphic card may be not supported. If you install a non-Apple graphic card in a Mac Pro (e.g. a PC Nvidia card) you can't see your booting screen, but when OS X gets past booting process the card will work, I've checked it with several graphic cards on my Mac Pro 3.1 8 Cores. So are you sure your Nvidia GT120 is supported by El Capitan? Link to comment Share on other sites More sharing options...
Mageek Posted December 24, 2015 Author Share Posted December 24, 2015 Thank you for responding. Not sure what you mean by support. If it was "fully" supported then I wouldn't have this problem. Tried NVidia's El Capitan drivers but it seems 10.11.2 isn't supported yet as it reports an unsupported version. Soooo... I have an older Apple NVidia GT120 card with 512m of memory the acted exactly like the newer one I have installed on boot up starting with Maverick. I had read that El Capitan liked at least 1gig of video memory so that is why I upgraded. The newer video card has been flashed to work on Apple. Bought an older NVidia with DVI and VGA didn't make any progress as of yet. Link to comment Share on other sites More sharing options...
PPCnostalgic Posted December 24, 2015 Share Posted December 24, 2015 Have you tried this? http://www.nvidia.com/download/driverResults.aspx/96651/en-us Link to comment Share on other sites More sharing options...
Mageek Posted December 29, 2015 Author Share Posted December 29, 2015 That provided me with a new driver for the one card that was working, but still no change. Link to comment Share on other sites More sharing options...
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