Hi people! Im new to this forum and would appreciate someone help me with my problem. I was gifted with an old Power Mac G5 2.3 Ghz Late 2005. After some research i realized i had a bad power supply (tested with multimeter and no current from nowhere) so i bought a new one off ebay ($130 shipped). I have successfully installed the power supply and gave it a shot. When i pressed the power button nothing happened. I went back with my multimeter to check if the computer had current now and noticed a yellow led came on as soon as i removed the clear deflector. That surely meant it had current in the circuit but still thats the only sign of life I have. No fans, no lights no nothing. I have been thinking I have a bad power button or something but not sure. Someone had this problem or know how to fix it? Any help will be greatly appreciated.