Guest naujoks Posted December 8, 2024 Posted December 8, 2024 I have a Mac Pro 2013 which was working fine until today, when on booting the WiFi mouse wasn't working. I held the power button pressed to power down the machine. When trying to restart it, the fan won't spin up and there's no boot chime. The only sign of life is the lights at the back coming on, staying on for 15 seconds and then go off again. What could be the problem? Source: MacRumors
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