Reusing G5 PSU w/ATX Hackintosh build?

[Oshawapilot]

Has anyone ever accomplished this? I found several search results where people mention trying (often ending in giving up) but no clear success stories.

As I undertake it the stock G5 PSU is a 1000w model, at least so says the guy whom I'm buying the case from. For my build I'm thinking a 400-500w replacement would do, but honestly, reusing the Apple model seems like it would not only save me a few dollars, but provide a ton of extra wattage for future expansion possibilities.

I'm very handy with a voltmeter, soldering iron, etc, and aren't afraid to get down and dirty...but I guess the big question is, does the stock G5 PSU provide the proper voltages required for a hackintosh build using all the regular hardware?

Thanks all.

 

[ModBot Jr]

Moved to the correct forum section. faq.php

User Builds -> Customization index.php


User Builds == Confirmed User Hardware Builds and Methods

Customization == Modifying, building or reusing Macintosh desktop components to use in a Hackintosh system

 

[minihack]

http://aquamac.proboards.com/index.cgi?action=display&board=hack1&thread=1032&page=1

I'm sure it is possible. I did the reverse to use an ATX PSU to test fire a G5 Mobo and of course others have often done the ATX to Mac conversion. Looks from the thread above (I see it is talking about a Mac pro PSU, but think the g5 has similar issues) as if maybe a couple of wires might be missing from the ATX standard that you may have to "re-create" but there's always a way....

Actually, looks like it should be pretty simple, here are the g5 pinouts:

g5psupinoutp1cn8.png
g5psupinoutp2p3.png

and here is the ATX:
ATX pinout.jpeg

If I recall right the G5 PSU requires there to be 5v sensed by the +5v sense pin on the main p1 connector to keep it turned on, but that should be pretty simple.

 

[TimyD]

Any chance of getting this info updated for 24 pin ATX connector with the 8 pin CPU connector? I am getting ready to start a G5 case mod and really would like to use the original PSU. Gotta brand new board and I really want to keep the case as 'original' as possible. I do not have a v/ohm meter otherwise I'd check myself.

 

[DonutHands]

Please dont go spending hours on end cutting and soldering the connections on a g5 power supply so you can use a 7-8 year old PSU in your build.

They are pretty inefficient in power use by todays standards and who knows how much longer the caps will last in that thing.

 

[eelhead]

A G5 power supply cannot provide what today's motherboards need in terms of different power requirements.