Power Mac - Can you use a 1.8Ghz G5 Power supply on a 2.3Ghz?

ktreece777 · ktreece777 #1 (**permalink**)

06-06-2008, 07:04 PM

Do all of the Power Mac G5 power supplies work together? I want to put a 1.8Ghz Power supply in a 2.3 with a dead power supply.

skaheadpunk · skaheadpunk #2 (**permalink**)

06-06-2008, 08:39 PM

I don't think they do.

If you have a look at this site they seem to sell them all - if you can match the part numbers on the 1.8 and 2.3 with the ones on the website you can see if they would be interchangeable. Sorry that's a bit long winded but I can't find much info on it.

harryb2448 · harryb2448 #3 (**permalink**)

06-06-2008, 08:41 PM

Quite probable. Here is a link to an eBay auction giving model information on a pwer supply. Hope it helps:-

http://cgi.ebay.com.au/Apple-PowerMa...dZp1638Q2em122

skaheadpunk · skaheadpunk #4 (**permalink**)

06-06-2008, 08:50 PM

Quote:

Originally Posted by harryb2448

Quite probable. Here is a link to an eBay auction giving model information on a pwer supply. Hope it helps:-

http://cgi.ebay.com.au/Apple-PowerMa...dZp1638Q2em122

That sounds much easier than my idea!

harryb2448 · harryb2448 #5 (**permalink**)

06-06-2008, 11:48 PM

You check it out kt? Closes tomorrow and no bids if it suits your G5!

ktreece777 · ktreece777 #6 (**permalink**)

06-07-2008, 07:38 PM

What do you guys think? I plug my powermac in and I don't get anything at all. No light nothing when I push the power button. Is it the power supply or could it be the logic board?

harryb2448 · harryb2448 #7 (**permalink**)

06-07-2008, 11:26 PM

Not good kt. Have a look at this link for suggestions. Do you have a static wrist strap? If so whack it on:-

http://osx.tribe.net/thread/e5e95f42...9-a8715e72af63

ktreece777 · ktreece777 #8 (**permalink**)

06-08-2008, 01:11 AM

Quote:

Originally Posted by harryb2448

Not good kt. Have a look at this link for suggestions. Do you have a static wrist strap? If so whack it on:-

http://osx.tribe.net/thread/e5e95f42...9-a8715e72af63

No, its dead completely. I don't even get a light on the computer

SpindleX · SpindleX #9 (**permalink**)

06-08-2008, 01:58 PM

Have you reset the PMU? If you have a volt meter handy, you can check the voltage from the 24-pin power supply connector.

bryphotoguy · bryphotoguy #10 (**permalink**)

06-08-2008, 02:22 PM

I was going to say no. I looked on MacTracker and it only lists the maximum watts of each model. It seems the earlier 1.8GHz models used more power than the later model PowerMacs like the 2.3GHz.
You may be safe. But those go bad quite easily. The later models were also liquid cooled. I would hope the system wouldn't require a special kind of power adapter or something.
There was also a recall of Power Macs due to bad power supplies. Check here to see if your PowerMac qualifies. It would be repaired for free if it qualifies.
I would also consider that if a power supply goes down, it can take down the logic board and processor with it.

ktreece777 · ktreece777 #11 (**permalink**)

06-08-2008, 02:25 PM

Quote:

Originally Posted by SpindleX

Have you reset the PMU? If you have a volt meter handy, you can check the voltage from the 24-pin power supply connector.

How do you reset the PMU if you can't power it on?

SpindleX · SpindleX #12 (**permalink**)

06-08-2008, 10:27 PM

You can reset the PMU(Power Management Unit) by pressing the button located near the RAM slots. Press the button once and then try to power-on the machine again.

bryphotoguy #10 (permalink)
Member Since: Feb 02, 2007 Location: Chicago, IL Posts: 3,978 Mac Specs: Quad 2.8GHz Mac Pro, Edge iPhone	06-08-2008, 02:22 PM I was going to say no. I looked on MacTracker and it only lists the maximum watts of each model. It seems the earlier 1.8GHz models used more power than the later model PowerMacs like the 2.3GHz. You may be safe. But those go bad quite easily. The later models were also liquid cooled. I would hope the system wouldn't require a special kind of power adapter or something. There was also a recall of Power Macs due to bad power supplies. Check here to see if your PowerMac qualifies. It would be repaired for free if it qualifies. I would also consider that if a power supply goes down, it can take down the logic board and processor with it. January 2008 Member of the Month
	QUOTE Thanks

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ktreece777 #1 (permalink)
Member Since: Mar 05, 2008 Posts: 66	06-06-2008, 07:04 PM Do all of the Power Mac G5 power supplies work together? I want to put a 1.8Ghz Power supply in a 2.3 with a dead power supply.
	QUOTE Thanks

skaheadpunk #2 (permalink)
Member Since: Jan 12, 2008 Location: Leicester, England Posts: 1,760 Mac Specs: MacBook, iPod Classic, 8GB 3G iPhone, Time Capsule	06-06-2008, 08:39 PM I don't think they do. If you have a look at this site they seem to sell them all - if you can match the part numbers on the 1.8 and 2.3 with the ones on the website you can see if they would be interchangeable. Sorry that's a bit long winded but I can't find much info on it.
	QUOTE Thanks

harryb2448 #5 (permalink)
Member Since: Nov 28, 2007 Location: Nambucca Heads Australia Posts: 14,265 Mac Specs: iMac i5 2.7GHz OS X.8.3	06-06-2008, 11:48 PM You check it out kt? Closes tomorrow and no bids if it suits your G5!
	QUOTE Thanks

ktreece777 #6 (permalink)
Member Since: Mar 05, 2008 Posts: 66	06-07-2008, 07:38 PM What do you guys think? I plug my powermac in and I don't get anything at all. No light nothing when I push the power button. Is it the power supply or could it be the logic board?
	QUOTE Thanks

harryb2448 #7 (permalink)
Member Since: Nov 28, 2007 Location: Nambucca Heads Australia Posts: 14,265 Mac Specs: iMac i5 2.7GHz OS X.8.3	06-07-2008, 11:26 PM Not good kt. Have a look at this link for suggestions. Do you have a static wrist strap? If so whack it on:- http://osx.tribe.net/thread/e5e95f42...9-a8715e72af63
	QUOTE Thanks

SpindleX #9 (permalink)
Member Since: Jan 04, 2007 Location: Asheville, NC Posts: 80 Mac Specs: iMac Alum 20'' 2.4GHz \| iMac G4 \| iPod Silver Nano 2GB	06-08-2008, 01:58 PM Have you reset the PMU? If you have a volt meter handy, you can check the voltage from the 24-pin power supply connector.
	QUOTE Thanks

SpindleX #12 (permalink)
Member Since: Jan 04, 2007 Location: Asheville, NC Posts: 80 Mac Specs: iMac Alum 20'' 2.4GHz \| iMac G4 \| iPod Silver Nano 2GB	06-08-2008, 10:27 PM You can reset the PMU(Power Management Unit) by pressing the button located near the RAM slots. Press the button once and then try to power-on the machine again.
	QUOTE Thanks

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