History:
A few months ago I replaced my Mac Pro's default video card with a GTX 570. This card works fine with OSX, but unfortunately it isnt officially supported, so any time I hold option when booting, it wont display anything (screen remains black).
I got around this by simply altering the default startup disk whenever I wanted to boot into windows. Once in windows I could change the startup disk from the bootcamp menu in the toolbar to boot back into OSX.
Yesterday I attempted to boot...
Mac Pro wont display anything
A few months ago I replaced my Mac Pro's default video card with a GTX 570. This card works fine with OSX, but unfortunately it isnt officially supported, so any time I hold option when booting, it wont display anything (screen remains black).
I got around this by simply altering the default startup disk whenever I wanted to boot into windows. Once in windows I could change the startup disk from the bootcamp menu in the toolbar to boot back into OSX.
Yesterday I attempted to boot...
Mac Pro wont display anything