Hi!
I have a problem with my cMP4.1 (flashed to cMP5.1). It power on, but no sound signal. I download Mac-Pro-2009-Tech-Guide and checked it according to this guide. DIAG button LEDs is OK (see photo). I tried to reset the PRAM, but it couldn't be done. I connected the USB keyboard to the cMP, but the indicator on the CAPS key does not light up when you press it. Does this mean that the keyboard is not powered and therefore the PRAM reset command is not executed?
I have a problem with my cMP4.1 (flashed to cMP5.1). It power on, but no sound signal. I download Mac-Pro-2009-Tech-Guide and checked it according to this guide. DIAG button LEDs is OK (see photo). I tried to reset the PRAM, but it couldn't be done. I connected the USB keyboard to the cMP, but the indicator on the CAPS key does not light up when you press it. Does this mean that the keyboard is not powered and therefore the PRAM reset command is not executed?