Updated Firmware to 2,1 and now won't boot/no chime
2006 Mac Pro 1,1 updated firmware to 2,1. Seemed to work. Shutdown, starts up, fans spin, power button lights solid white. CD drive spins up. No USB.
Tried variations on removing hard drive, video card, rams sticks, etc.
Tried SMC reset on the board, as well as reset of the board.
When I push the diagnostic button on the motherboard, LED #7 doesn’t light up at all, green, yellow or red.
If it’s the PSU, is there a definitive way to test it? Multimeter?
Thanks in advance for your help!
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