Recently I was puzzled: my G5 crashed after trying it to get out of sleep. Crashed, as in a) no response, b) fans starting to blow like a 747, and c) display garbled.
The solution was to power down, then disconnect all cables to the G5 (just to be safe), open the cover and look for little grey switch on the motherboard. It's near the bottom left, behind the main fans, above notation "PMU."
With a paperclip, hold this switch for five seconds, connect all cables, start the Mac ... et voila! Everything works again.
Save that cold sweat for your deadlines.
The solution was to power down, then disconnect all cables to the G5 (just to be safe), open the cover and look for little grey switch on the motherboard. It's near the bottom left, behind the main fans, above notation "PMU."
With a paperclip, hold this switch for five seconds, connect all cables, start the Mac ... et voila! Everything works again.
Save that cold sweat for your deadlines.
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