No other light after that, neither for cpus nor rams, the led over the power button goes white. When I press the power button, there is a very brief red light on the cpu board (I think that's normal), that's all. When I press the DIAG LED button on the backplane, I have the amber 5v led on. Tried reseating rams, shuffling rams, new ram. Tried to remove gpu, HDs, optical drive, all rams. The led on the power button starts blinking. Keyboard not responding, can't even open the optical drive. When I press the power button, it turns on, fans are running (not the psu fan though), I can hear some activity in the HD and optical drive but no chime and no video (screen stays black). I have a problem with my mac pro early 2009 (4.1) and I really need your help!
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