PowerMac G5 Not StartingMy friend gave me a Dual Processor 1.8GH/z G5 A1047 a few days ago because it was broken. I thought it was a Logic Board...
Answer to "Power Mac G5 won't start"Late 2005 eh? Sitting for months to a year eh? I'm sorry to say, you might have a leaking cooling system. The late 2005 2.5 and 2.7 eventually start leaking due to failure of the liquid cooling system for the CPUs. Sitting for a long time like you said makes be think the cooling failed