Mac Pro 1 1 don't have Mac OSX installed
Hello Apple Community, I got a problem. I bought a Mac Pro 1 1 from someone, he removed mac OS X completely and installed Windows, and now the Windows part is failing and I cannot find out how to install Mac OS X on it, and it doesn't show up anything on the Display, I get the apple Sound, But its like it cannot find windows on it anymore. It always took 1 min to boot from Windows.
And now just suddenly. its like it cannot find anything. its shuts down immediately as I press the power button.
How you guys can help me.
And hope you guys have a good day.
Mac Pro, Windows 7