I have a 2009 mac pro a1289 and I flashed the firmware to the 2010 mac pro so I could get the six cores processors to work on them. In the system identifier the mac came up as a 5,1 so I think the firmware hack worked. After I swapped the CPUs in and tightened them to about 5 turns the computer just turns on and sits there. There are no red lights and the power led is solid but the computer wont chime and start up. Is there anything I can try to make the mac boot?