I just bought a Power Mac g5 from a garage sale. It didn't come with any power cable so i found one that fit. Whenever I plug it in the status light blinks once and i am unable to turn on the Mac. It also doesn't have an os installed. Does anyone know what is going on and how to fix this?
Model Number: A1047 EMC
Apple ID-OTHER, Windows 8
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?
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.
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/
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?
Yes,many things, try this.
How to reset the SMU/PMU on a Power Mac Earlier G3, G4, G5 models...
Thank you for replying. I just tried what you said and it didn't change anything. Do you have any other suggestions?
Is there one red LED lit on the logic board?
No there is not. No light at all
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
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?
Hmmm, I wonder if it'd start like that?
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
I think you need to rear or replace the PSU. 😟
Darn I was hoping i wouldnt need to:/
I hope that is the only problem, good luck! 🙂
Power mac g5 will not turn on
