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You are here: MacNN Forums > Hardware - Troubleshooting and Discussion > Mac Desktops > g5 power mac not powering on

g5 power mac not powering on
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dibble
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Join Date: Nov 2007
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Nov 20, 2007, 06:50 AM
 
i left my g5 switched off for 7 months when i went to turn on it powers up for a second then switches itself off. tried changing battery inside and pressing pmu reset button but no joy. does anyone know if this is a power supply problem or a logic board problem or is it something else?
     
Waragainstsleep
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Join Date: Mar 2004
Location: UK
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Nov 23, 2007, 02:58 PM
 
It could be either. These machines can be awkward to troubleshoot, even with an ESD workstation, lots of tools and a spare one for testing parts.
If it starts then stops, It would seem more likely to be the board I'm afraid. Having said that, if you have a dual core (particularly one with the 1KW PSU) its probably the PSU.
MacBook 2.0GHz CD; MacBook Pro 15" 2.4GHz Late '08; PowerMac G4 MDD Dual 1GHz; 3x Xserve G4 1GHz; Mac Mini 2GHz; Big pile of broken and working bits;
     
   
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