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Power Mac G5 (A1177)

Submitted By: powerbookmedic
Approved On: 11/18/09
Description: This is an official Powerbookmedic.com take-apart guide for the Power Mac G5.

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Comments (29):

5 months ago
Excellent video. Thank you!
1 year ago
Very helpful. Thanks for making this.
1 year ago
Well...I get nothing! All I hear is a couple of clicks (very minimal in noise) but that is only when I plug the power cord to the mac..pressing the power on button does not turn anything at all. Logic board diagnostics lights are not on. I tested the back up battery, still gives more than 3.5 v.. Resetting the PMU does not do anything at all...So, now my question is: how do I test the Power Supply unit (pins) I see a lot of testing on different power supply units, but not on a 1000-watts for this Power mac late 2005 model.This model has two molex pins (P1 is 6 pins and P2 is 10 pins)...I bought this used power supply (not from here) and I've only have a couple of days left on the warranty, so I just want to check it and make sure if it was faulty to begin with...or maybe I need a logic board...thanks
1 year ago
OK. I was just making sure that I wasn't missing any steps...Is all ready to be plugged in the wall and turn on...but you know how this things are...Thanks!
Powerbook Medic
1 year ago
@AlexO - not sure what tests you can do without plugging it into the motherboard and powering it on that would help.
1 year ago
So, I replaced the PS unit with the same model, etc...How do I make sure that everything is placed as it should (I'm sure I did, but you never know). Any suggestions as to what to look for before I turn it on again? what should I look for? Thanks
Powerbook Medic
2 years ago
@Joel - these typically have some indicator lights inside if there are specific issues which you can find references to online. It could be a power supply issue though. Apple Stores may not help much these days on this model considering their age, but an Apple authorized repair shop may be able to.
2 years ago
I have one of these I acquired from my job, but it doesn't start.... it has the odd horizontal pronged power supply, but didn't come wit ha cord. I bought one off of ebay, but when I hit the power button... nothing. Is there a way for me to troubleshoot it or should I take it to an Apple Store?
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