I've had this G5 (2.7GHz, 1.5GB Apple RAM) since around February or March and for quite some time it made two clicking sounds and that was it. Today at around 6:40 I was just about to go pick up another G5 also a 2.7GHz for parts to replace the power supply. Right before I left, I plugged my Mac in one last time and poof, it turned on. I couldn't believe it, right before I went to replace it the G5 came back almost as if to say "not so fast". Now what's happening when I press the power button is: fans spin up, then slow down to normal speed hard drive spins up no chime front LED only comes on when it is pressed red LED on one of the processors after approx. five minutes fans speed up and after ten minutes they are at terminal velocity will not communicate with any peripherals only way to turn it off is pressing the CUDA or pulling the plug Things tried: CUDA reset cold start Some more info on the machine: RAM is tested and good DVD-RW is good all fans run I don't have the original disks I don't have a monitor for it (since it never worked) Any help would be greatly appreciated, as my iMac is really showing its age and finances are tight. Thanks!