Macpro 2012 turns on and wont bootup
Hi,
I have a Mac pro which which is upgraded to 64 GB of ram and 8GB of graphics card. It was working fine for an year now the problem is it turns on when I press power button immediately after one min it goes off again if try to turn on it won turn on after disconnect of of power cable for 5 mins if i press power button it turns on again goes off. Kindly help to resolve this issue.
tried after removing 8GB Graphics card and with default one which it has been shipped with found same problem.
thanks
Ramesh