The Mac Pro First Generation is an Intel Xeon-based workstation computer manufactured by Apple Inc. The first generation model includes the machines from 2006 through 2008.
I turn on my Mac Pro 2.1 2007 and everything turns on (fan, LEDs) but it gets stuck at a black screen. I’ve replaced hard drives, the motherboard, and the processor but nothing seems to work, what’s wrong?
3.7千 
1.1千 
2.6千