G5 Dual 2.5 Power Supply Replacement?

Hi, I tried searching for this, but there seems to be no information available for my particular model. Last week, I had the dreaded power supply failure for an out of warranty, June 2004 G5 Dual 2.5 Ghz. I brought in to a repair shop, and they ordered a new power supply for it. But I was told today that the they can't seem to locate any detailed documentation on this particular computer. My own searches have turned up the same (although plenty of documentation on other, different G5's).
As it stands, no one can seem to figure out how to access the power supply, which seems to be placed between the "floor" of the interior, and the actual bottom of the case. Does anyone know where to find the right instructions/documentation, or know themselves how to pull this sucker apart? I'd be eternally grateful for any help.

Hi. Reference material and anything detailed on the G5 is a bit scarce. The G5 Service Source is here.
The manual does not show liquid cooling. Some more info here - but again, not liquid-cooled
http://www.sharpeningbeneath.com/g5guide/
Some photos here
http://homepage.mac.com/thunderaudio/PhotoAlbum1.html
As you can see it's quite an undertaking - the risk of damaging something much more expensive than the PSU is high. Which is why, I guess, people let the shop have the problem of fixing anything they break...

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Fan & Power Supply Replacement Kit from 2003

Hi All,
I was so excited to finally retire the G4 500 and replace with a shiny used G4 1.42 Dual. Unfortunately, I never botherd to learn about the "WIND TUNNEL" effect.
I know Apple offered a free Fan and Power Supply Replacement Kit back in 2003 that is no longer available (through Apple), but surely some wise Capiltalist Mac Reseller out there must be offering the same solution for a handsome fee.
Can anyone offer a URL?
Thanks!
J
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G4 1.42 Dual GHz Mac OS X (10.4.7)

Hi
I could be wrong, but I was under the impression the original MDD G4s suffered from the worst noise and Apple addressed the issue as best they could in the FW800 G4s (including the dual 1.42) and the rereleased MDD 2003 G4.
Verax sell a quiet MDD cooling kit:
http://www.verax.de/verax.php?template=catalog_entry&entryid=44

PowerMac G5 Power Supply Replacement _ Sharing some information

I thought I might share my experience here with the recent replacement of the 600w power supply on my DP 1.8 G5.
Like many who have experienced the failure, the loud cap gun like sound when the PS failed was a sound I didn't want to hear.
Because this system is the workhorse of my business it was imperitve that we ether got it back up and running or replace it. After a quick call to Apple, even though the system is out of warrenty, I realized this was going to be an in house repair, one because of the cost invloved, and two because of our time frame.
My thought was how bad can a power supply replacement be? We replace them all the time on our Web Servers and other Linux based systems.
To those of you that have done this G5 repair I'm sure you are snickering about this time.
We were able to locate a new power supply and had it over nighted. To those of you ready to tackle the job here is our experience:
1. Remove the fans, both the front and rear.
2. Pop off the covers on the processor heat sinks so you can get to the allen head screws that hold the processors in place. ( Yes you have to pull the processors to remove the power supply) Make sure you have a 2.5mm allen head driver with at least a 5.5" shank so you reach the screws that hold the processor in place.
3. Mark the processors, A or B, top or bottom, you want them going back in the same slots.
4. Once you have loosened the screws (leave them in the posts, no need to pull them out) pull each processor straight up. Don't wiggle them or rock them, you don't want to bend any pins.
5. If you have the lower RAM slots filled I would pull the RAM, you'll need the room to get the Power Supply cover out of the way. Again be sure to mark the modules so there is no mismatch.
6. Remove the 2 screws that are holding the PS cover in place. I found that if you lift the front of the plate up and then slide it to the front, it clears the case. It IS tight to remove this cover, be careful not to jam it against the logic board. I also found its flexable so I could torque it a little from the middle to pull it out.
7. Remove the 4 screws from the bottom of the case, they hold the PS in place.
8. Remove the 3 connections from the logic board.
9. I found that with the case laying on its side, I tipped the power supply up horzontialy towards the top on the case, and then it lifted stratgit out.
10. Pop the new in the samew way the old one came out, and make the connections to the logic board. The front connection is a pain because the pig tail isn't all that long, so you end up doint it with one hand.
11. Reinstall the 4 screws on the bottom of the case, and reinstalled the PS cover using 2 screws.
12. Put you processors back in place, first the top and then the bottom, be careful here, you don't want to bend any pins, line up the posts and push straight in, you'll feel it seat itself. Tighten up the screws. Don't overtighten these they need to be snug.
13. Replace the ram, and the top covers for the heat sink and your fans.
At this point you should be all set, replace the dust covers close up the case and fire it up and all should be well.
We of course cleaned up the case before replacing the PS and we DID run into a problem with the top processor not seating properly. When the machine booted we got to a gray screen and that was it. I suspected a processor wasn't seating properly and when I pulled the top processor I found a piece of dust between the pins. Of course when I removed the dust I bent a pin, and spent the next 20 minutes realigning it it with a safety pin. I know bad idea but I was desparate. We got incredibly lucky with the alignmnet and the machine booted and has been running like the bear it is.
We have built and service a lot of machines over the years, and I have to tell you pulling processors to change a PS just doesn't make a lot of sense to me. I also have to take issue with the unavailability of information from Apple. I KNOW they want you to use their services but not all of us are in the position to lay out 250 for a PS and another 300 for labor and wait 10 days:)
I was in touch with a couple of people I know that stated when they pull the PS they also pull the logic board. I didn't find that to be necessary in our situation.
Like always when you open the case take the necessary precautions with static discharge and electrical hazards.
Hope this helps somebody out there, I know there wasn't a whole lot of info I found for the task in detail.
G5 Mac OS X (10.4.8)

You really need to call Apple and ask about your particular machine. Sometimes Apple will still honor the extended warranty if it applies, even if you're beyond the expiration, and your machine might fit a narrow set of circumstances that doesn't apply to everybody else.

Mega 651 Power Supply Replacment..

Hi Everyone,
Where on earth do you find a power supply replacment for the Mega651. I've tried tracking it down from FSP Corp. (manufacture sticker on supply) and countless websites but can't find one anywhere...Anyone?
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Steve

Hi Pico,
have a look at this post :
The definitive(?) guide to replacing the MSI Mega PSU
it may be of use

Post Power Supply replacement problems

Hello,
I'm trying to resuscitate my PowerMac G5 after a power supply failure and I'm having some issues. I've reached the end of my expertise and so I need to reach out to the community in hopes of being pointed in the right direction.
So here's the series of event that led me to where I'm at right now along with some symptoms:
- My PowerMac G5 Dual 2.0 (june 2004) died in a puff of smoke one day, smelled like burnt plastic. I was pretty sure it was a power supply issue. My computer does not qualify for the Apple extended PSU replacement program. After the death, the power supply would click whenever it was plugged in but otherwise the computer was unresponsive.
- I ordered in a new 600W power supply and replaced the toasted one. I took care to place the CPUs back exactly where they were to avoid having to re-calibrate them.
- I plugged my computer back in with the same configuration minus the second hard drive. The primary hard drive should be bootable.
- The first time I powered it on it had no monitor or keyboard/mouse connected. The fans went off at normal speed, the chime chimed and then the fans went full speed.
- I powered it off and plugged in a keyboard/mouse and monitor and now when I power it on I can hear the fans, then the chime then the CD drive reads a bit of the CD and then that's it. No video.
- It somehow seems to ignore the keyboard and mouse: I can't use the keyboard to reset the PRAM. I can't use the mouse to open the CD tray.
- Powering the computer down requires the "press and hold for 2 sec" versus the immediate power down like when the computer is in Target Disk mode.
- The power status led doesn't flash in anyway at boot, indicating no problem with the RAM, ROM or processors.
- The diagnosis lights inside the mac are not lit until I remove the plastic cover which triggers the default behavior of running the fans at full speed. Then the led lights up.
- I reset the PMU but it didn't seem to make a difference.
- I tried accessing the disk in Target Disk mode but since the keyboard appears to be ignored I don't think the G5 even gets in Target Disk mode. In any case it doesn't mount on the remote computer.
- I notice that the fan on the video card doesn't spin. The video card is an ATI 800XT with a Zallman fan and heatsync installed.
I'd be tempted to say that the video card got fried with the PSU failure but then shouldn't I be able to use the keyboard to reset the PRAM and such ? The fact that I'm unable to do that leads me to believe that perhaps a part of the logic board or the front panel got fried...
How would I go about troubleshooting this without buying a new logic board and front panel ?
Any ideas ?

Going through the exact same issue started about 1.5 weeks ago thinking about giving up and buying a Mac mini for access and snow leopard.

Source for PM G5 2.0 Dual (Late 2005) Power Supply

Ok, thanks to Steve & Roberto I now know exactly how to install a replacement Power Supply for my PM G5.
Now, as Apple will not sell me the part as it is not a user replaceable part, does anyone have any recommendations as to where I might be able to find a Power Supply ? I've searched the web but haven't been able to locate a new one nor am I certain that any of the sources I've managed to find are reputable.
Thanks
Tim

Unfortunately the URL's are not showing up for me in either Safari or Firefox
That's weird - they're showing up for me in Safari.
Anyway, here's the links spelled out, so at the very least, you should be able to cut and paste:
http://www.mac-pro.com/Powermac-G5-Dual-Core-power-Supply-Late-2005_2?sc=2&categ ory=454
http://www.welovemacs.com/6613737.html

G5 Dual 2.0 Power Supply Issue.

I am the original owner of a Power mac G5 dual 2.0 I purchased this machine in april of 2004 and it has been working nearly non stop ever since. Recently I put it into sleep mode and when I came back it had powered down and would not start up. I assume it's the power supply and I would like to know if there is anyway to tell what type of power supply and model thereof without tearing down the machine. Can anyone be of assistance.
Thanks
AJ

Hi, and a Warm Welcome to Apple Discussions and the Power Mac G5 Forum!
Well - the Power Supply Units for the Original DP2 G5s are available here
http://www.mac-pro.com/Replacement-Power-Supply-for-PowerMac-G5-600-W?sc=2&categ ory=408
and here
http://www.welovemacs.com/6612904.html
Replacing the PSU is covered at page 54 here
http://akserver.dyndns.org/macosx/hw/asm/PowerMac/PowerMac-G3-G4-G5/PowerMac-G5/ powermac_g5.pdf
If you disconnect the mains power from G5, is there a 'relay click' from the PSU when you plug the mains lead/power cord back in?
Any other sounds, LED activity, nothing?
You could try disconnecting everything except the display and wired keyboard and mouse, and resetting the PMU by pressing(once, firmly) the button shown in the photo at the bottom of the page here
http://docs.info.apple.com/article.html?artnum=300341
Earth/ground yourself by keeping one hand on the G5 casing as you press it; you do not have to remove the Intake fan bracket to get at the button.
Good Luck.

Power Supply Replacement!

Good Day!
I bought HP LASERJET PRO 100 COLOR MFP M175 from a Future Shop store in Canada two years ago. A few months ago I left Canada and headed to my home country, with no hope of returning back again to Canada, so I decided to ship the printer with me to use it at home. Unfortunately, unaware of the voltage difference between 110v, North American voltage standard, and the 220v voltage standard in my home country, I plugged the printer cord into the wall and .. boom (you know what happened). A local accredited service center found the power supply out of order, and suggested replacement.
My question is: How can I find HP-certified service center in Montreal, Canada and how much it costs to replace the power supply (warranty is expired)?!
Regards,
Jeffery
This question was solved.
View Solution.

@7kem, welcome back to the forums
I would suggest calling HP directly to inquire about ordering a replacement power supply for your printer.
HP's contact info:
If you are calling within North America, the number is 1-800-474-6836 and if you are calling outside of the US/Canada,: click here.
Best wishes
R a i n b o w 7000I work on behalf of HP
Click the “Kudos Thumbs Up" at the bottom of this post to say
“Thanks” for helping!
Click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution!

SEARCHING FOR TUNSTEN E POWER SUPPLY REPLACEMENT

I am working here in Baghdad, Iraq and need to know where to purchase a replacement AC adapter.
Type is PalmOne SAC MODEL R3W005-500
PALM PIN: 163-5877A-US
INPUT: 120VAC 60HZ 100MA
OUTPUT: 5.5VDC 500MA
ITE power supply I think the power supply was plugged in to 220 by accident. However, I do have a universal which works some but only charges at 4.5 volts. I would like to replace old one. But do not know where to go. I am sure I will have to purchase online.
Post relates to: Tungsten E

Hello and thank you for using the Palm Help Forums!
I was unable to locate a charger on our website but I was able to locate the charger you need on a different website. http://www.gethightech.com/Merchant2/merchant.mvc?Screen=PROD&Product_Code=CL-920&Category_Code=CC
This is for the Tungsten E device you currently own. I hope this resolves your issue.
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IMac 24" power supply replacement

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thx

Not really. I would recommend taking it in for service at an authorized Apple Service Provider. You can locate one:
http://www.apple.com/buy/locator/service/
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Need G4 Powerbook power supply replacement. Help?

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Not cheap - but i have a kensington adapter that includes connectors for AC, Car DC, and airplane power sockets.

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My 13 months iMac G5 20" 2GHz shut down all the time.. mostly within 10 minutes after booting.
A friend of mine had the same problem 2 months ago. Apple replaced his Power Supply for free since the guaranty is 12 months.
My machine is one month past guaranty, 13 months old and therefor Apple wants $200 to fix my computer!!
As I can see my iMac ain't covered by the iMac Repair & Extentionprogram since mine is a 2GHz.. My seriealnumber starts with W8519XXXXXX..
Does W8435xxxxxx - W8522xxxxxx mean that all serialnumbers between these two are convered by this program?
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M78 power supply replacement

Hi,
I need to replace one of my business' desktop PCs and I'm thinking about getting a an M78 (2111C3U) model.
I read online where the power supply has a proprietary connector, so I was wondering if anyone has the part number or knows what a replacement will cost.
My reason for asking is that I had a Dell lap top once with a proprietary power supply that went bad. It turned out to be a very common problem that even caused a few fires. Dell would not work with us for a reasonable solution (lap top was out of warranty) so I'd like to know in advance what I'm getting into if I go with this power supply.
My bad experience with Dell was 6 PCs ago. As result, I've been Dell "problem-free" for a while now and I've really enjoyed it.
thanks

The hardware maintenance manual may be of help to you:
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Hi
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You got a problem on you hands . Call Linksys and ask them to see where you can get a replacment

G5 Dual 2.5 Power Supply Replacement?

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