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All replies
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Helpful answers
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Jun 26, 2015 6:22 AM in response to ADDVILLby ADDVILL,I narrowed it down to I think just a broken power button.
does anyone know how I could bypass the power button or fix it?
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Jun 26, 2015 12:57 PM in response to ADDVILLby rccharles,It could be the battery too. I believe the battery is involved in establishing power. At least in some models of mac. Check ebay for the battery.
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Jun 27, 2015 10:12 AM in response to ADDVILLby BDAqua,Might be time to replace the PRAM Battery, 4 years is close to their lifespan, far less if ever without AC power, & can cause strange startup problems...
http://eshop.macsales.com/item/Newer%20Technology/BAA36VPRAM/
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Jul 2, 2015 12:17 PM in response to BDAquaby ADDVILL,I just bought a saft ls14250 3.6v and put it in. I'm still have the same problem except the light isn't turning on at all now . Could anything else be going on?
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Jul 2, 2015 1:35 PM in response to ADDVILLby BDAqua,Yes,many things, try this.
How to reset the SMU/PMU on a Power Mac Earlier G3, G4, G5 models...
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Jul 2, 2015 1:49 PM in response to BDAquaby ADDVILL,Thank you for replying. I just tried what you said and it didn't change anything. Do you have any other suggestions?
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Jul 2, 2015 3:21 PM in response to ADDVILLby BDAqua,That almost certainly means the Power Supply is shot,likely Capacitors gone.
Here's some more info on G5 PSU voltage values:
http://www.insanelymac.com/forum/lofiversion/index.php/t105113.html
AND LOOK AT THIS: ATX for G5...
http://damntechnology.blogspot.com/2009/02/rebuilding-powermac-g5-power-supply.h tml
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Jul 2, 2015 4:08 PM in response to BDAquaby ADDVILL,I tried putting a paper clip into a green wire and a black wire since i dont have a voltmeter and then the fans would turn on and also a red light. if that counts as testing the power supply?
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Jul 2, 2015 5:17 PM in response to BDAquaby ADDVILL,I Tried turning it on with the paper clip in.
the light above the power button turns on when I press the power button and turns off when I release it
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Jul 2, 2015 9:48 PM in response to ADDVILLby BDAqua,★HelpfulI think you need to rear or replace the PSU.
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