Mac PowerPC G4 won't complete boot; will start randomly- then crashes without symptom

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Mac Dual 1 GHz PowerPC G4, 1.5 GB SDRAM, OS 10.4.11

Mac PowerPC G4 won't turn on; will start randomly; crashes shortly after boot. Mac Dual 1 GHz PowerPC G4, 1.5 GB SDRAM, OS 10.4.11

Power light lights up, but then instantly goes out after releasing button. Fan turns on. Then shuts down with a click. Then after usually 3-20 attempts, the computer starts up and runs from 5 minutes to 36 hours of use. And then same cycle.

Fixes already tried: PMU reset button. New battery (2 months)


Any help greatly appreciated!
 
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Oct 22, 2007
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Your Mac's Specs
Mac Mini Core i7 2012 | White 2009 MacBook 2 Ghz | 733 Mhz G4 Quicksilver
I would consider a fresh install - you've already done then PMU and battery
 

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