Power mac g5 a1047 disassembly


I purchased a dual processor 2. It has been a great machine and I used it daily. On Jan 26, it spontaneously shut down while I was watching a video on wired. My AppleCare warranty has long run out, so I figured I would take it apart to determine the problem. Searching the web to find repair procedures, I came across this site. I put the Mac back together and took it to my local Apple store where they told me I was out of warranty and the parts needed would exceed the cost of a new Mac Pro.

I plead my case stating others have received out-of-warranty repairs, but they told me to call AppleCare to see if they would help. When I got home I did call AppleCare and they told me I was out of warranty and they couldn't help me. I asked to speak with a Senior advisor. He went away for awhile then said Apple would fix my machine for free cool! The Apple store people were surprised to see me back and somewhat sheepish I was getting my machine fixed when they had sent me away. They ordered new: CPUs, power supply, main logic board and a case - in essence a newly rebuilt G5.

Two weeks later the same Senior advisor calls back that they were unable to repair my computer and were going to give me a new Mac Pro for my trouble! The replacement machine was the entry-level current product, but I was allowed to upgrade and pay the difference. They also sent me a pre-paid FedEx shipping label to ship my G5 back to Apple.

So if you have a similar problem with your G5, call AppleCare and ask to speak with a "Senior" advisor. Plead your case about this being a safety issue and a possible fire hazard. Hopefully you will at least get a free out of warranty repair. I had been using it in a recording studio for about 4 years when the coolant started leaking from the LCS. The system was displaying weird symptoms, such as random freezing, going into hibernation without warning and system power downs. One day, the system would no longer power on.

I had my business partner take it to the Apple Store so a Mac Genius could take a look at it. When my partner asked what caused this problem, he was told that it was due to a ventilation issue. When I caught wind of this I couldn't believe it!!! Ventilation issue!??? I cracked the case to the system and saw corrosion on the bottom of the case and there was a whitish crystallized substance all throughout the case as well.

I knew it was time to call Apple Customer Relations and have a chat about this. I was connected to a L1 support representative and I stated my concern about the safety hazard that the design of this machine poses. I was almost immediately connected to a Senior Support Rep. Again, I explained my concerns and within minutes I was given a case number and a support ticket was placed with Engineering.

I was calling on a Thursday afternoon and the rep I spoke to advised me that he would have the next 2 days off and I would more than likely receive an update on either Sunday afternoon or Monday. Monday afternoon I received a call back and was informed that the entire system would be rebuilt and the cost would be covered by Apple even though the system was out of warranty. I was also informed that notation was added to their system in regard to my serial number and any future issues I had in regard to the cooling system would be covered as well.

I'm glad that Apple is owning up to the errors in design with these systems, but I'm not sure how I feel about re-implementing a system with such MAJOR safety issues back into my production setup. The tech at the authorized Apple repair center that I dropped the system off at offered the same concern.

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He also suggested that this was still a possibility and he would do what he could to make this happen. I'm not holding my breath They were VERY professional and caring. I did not have to raise my voice or argue with them. They expressed concern and seemed anxious to resolve the issue. Thank you for this resource! Best, Ty R. Like heart disease, my first signs of a coolant leak were fatal. I was happily typing away on my late June 04 Dual 2. I woke it up and it went to sleep again. This repeated several times until it wouldn't wake up anymore.

I rebooted and suspecting a hard drive problem started backing up my family photos to a firewire drive. Halfway through that the system froze up and I rebooted. The power chime rang and my power light was on, but my screen was blank. After unsuccessful attempts at starting from my install disc and booting in target mode, I pulled out the boot drive, put it in a firewire enclosure and mounted it on my PowerBook.

No problem with the boot drive. Those G5s are heavy! Anyway, the next day the repair center gave me the bad news, my processor had leaked After a new processor, power supply, absorbent pad and labor: I spent the rest of the day trying to figure out if this was something I could repair myself maybe, but risky , get done cheaper probably or bite the bullet and get a new system painful, but exciting. And then I stumbled upon your extensive postings this page on this issue.

Cue choir of angels. Three minutes later she connected me to a specialist, he took a few more details and after wondering why apple had sold me a late June 04 G5 in early even if it was a refurb, he told me he had to see if was even possible to get the parts to fix it. He took the contact info for my service center and told me that he would discuss the repairs with them. There may be an underlying product liability issue here, but still I have to give Apple HUGE credit for taking care of this.

I can't imagine any other computer maker standing behind a product that was almost two years out of warranty. I'm hooked for life. Thanks again to you and everyone here who has written in about their experiences with G5 coolant leaks. And to anyone who is going through this process now, remember, be polite and gracious, mention that it's a safety issue and if all else fails, you could mention that this is a potential product liability issue. Cheers, Justin V. Leaks after free Repair: This one is a little unusual in that this is the second leak to occur to the same machine.

In retrospect this machine was always a little problematic with performance and irregular fan noise but things took a turn for the worse. The machine refused to boot after an extended moth-balling from June until October Just out of Apple Care, I took it to a not so local accredited repairer. They diagnosed defective memory and replaced it at my cost.

The G5 was still a little off colour in so far as weird fan spin-ups and a failure to sleep without human intervention but again put into perspective, this had almost always occurred from new. I had been viewing your web site for another project and lo and behold, I stumble upon problems with G5 tower coolant leak. Well, straight onto the phone to Apple, asked and received an exemption case number and off to a more local accredited repairer. He called back and informed me it was a coolant leak, that he had contacted Apple and the repair was approved at no cost to me.

Happy days! Returned home booted up, here we go again weird fans etc took it back to the repairer. So we suffered along, again, not to bore you further, but it was as good as new, which was not great. January After a process of elimination I find the culprit: Apple Mac G5. I turn it on, the house power goes off. Back to the repairer we go. He contacts Apple and Apple approves the repair at no cost to me.

Back at home we boot up, you guessed it, strange fan operations, will not sleep on its own blah blah blah. Yes I have a lemon. We have no "Lemon Laws" in Australia, but the point that I would like to make is, in reading most of the reports relating to this problem, it would seem this is the first to have a double failure, indicating an inherent design fault which is replicated after repair. The second failure was catastrophic enough to cause a short to ground, thus tripping the safety switch.

Had the safety switch not been installed, the computer would have been live with volts, risking electrocution to anybody coming into contact with the tower. Perhaps Apple would now consider a complete recall or replacement after this case. Thank you for your fantastic website. I'd contact Apple support again or their customer relations and stress the repeated failures after repairs. Updates to earlier report: Jan 31st, I've updated an earlier report from Gil F.

I'm not sure how long the unit was actually leaking prior to the system failure. The first tech that I brought it to seemed to think it could have been up to a year or maybe even more judging by the corrosion of the case and the crystallized substance around the power supply and processors. Same story with the typical coolant leak issues slow performance, fans ramping up, eventually no booting and then the oozing liquid. So instead of focusing on that area, I thought I might write a little about my experience with Apple and how they took very good care of me during the process of replacing this machine.

PowerMac G5 Quad service manual | MacRumors Forums

Apple IS making good on repairs as well as replacements for this issue. As noted in earlier reports here - many owners have noted free repairs in the past. Some even said they got repairs even as 2nd owners But nothing is a sure thing for everyone. Especially outside the USA - in some countries awareness and reponses are not good and that may lower your odds perhaps.

Several here have noted getting new MP system replacements instead, BUT compared to the total reports here since Aug - those cases are rare overall. However it's almost a roll of the dice what your luck will be, especially if outside the US. However, you may need to fight for it a little or a lot depending on who you happen to get. Point being, you need to be persistent with them. Polite yet persistent. My machine is a Mac G5, dual 2. I purchased it in August of along with the 3 year Apple Protection Plan which I always purchase with the more expensive meaning tower units Mac stuff that I buy.

The machine was about 1. Fortunately, prior to its final "successful boot" I was able to backup what I needed from the system drive, safely. My wife's Toshiba laptop quickly became my only computer and thus my only means of getting on line to diagnose this problem. Eventually I came across your site as I searched the Apple Forums and proceeded to read while I also printed the entire list of other user stories out so I could take it to work and continue researching.

I took my Mac to the place where I originally purchased it back in not an Apple Store - but an Apple Certified repair center. After that he wasn't sure if the power supply or the motherboard were affected.

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He would need to attempt booting it before he could provide that information. I made sure the L1 service person knew that I was calling regarding a "safety issue" with the machine. This is very important to mention as the person immediately connected me with a Senior Advisor. Once there, I described my issue and she immediately went "to bat" for me.

Like many other people who posted their stories on this site, I wasn't really interested in a repair - mainly because of the safety concerns I had with the general design of this particular line of G5s a liquid cooling system sitting above an electrical power supply, housed within an aluminum case.

It's very important to make sure that the person helping you whether an Apple Genius at the Apple Store or the person you talk to when you call up Apple Service, is aware of this. My wife and I aren't home during the day so a flawed design of this kind is a huge concern to me.

I happened to call on a Friday afternoon so my Senior Advisor wouldn't be able to provide me with any kind of solution until Monday as she was off for the weekend. I had informed her that I had made an appointment with an Apple Genius just in case I needed it, for Saturday morning. She told me to take it down there and have the techs take a look at it.

The Apple Genius took a quick look at it and made the same determination as the first tech processors needed to be replaced and the power supply was no good. However, he was able to estimate the dollar amount of the damage. I made sure to inform the Apple Genius helping me, of my concern regarding the lack of safety with this particular design. I didn't get the impression that he was listening to me as the Senior Advisor at Apple Care listened to me.

With a 15 minute window to look at, diagnose and offer advice and options, I just don't think those guys have time to really pay attention to what their customers are trying to say to them. IMHO I'd extend the technical appoints to at least 30 minutes and keep the 15 minute appointments for the non technical stuff like instruction on an application and so forth.

Monday came and went. No word. I decided to email my Senior Advisor Tuesday morning and see where I stood with all of this. Got word back Tuesday afternoon that they had decided that a replacement was the best way to go in this situation. They took me through a simple "upgrade" process and then asked me a few questions regarding shipping back my old G5 in exchange for the new machine. I have to say, that my case was taken care of extremely quickly taking into consideration the weekend and all. I am very pleased to report that everyone at Apple Care was sympathetic and very willing to help.

They listened, provided alternatives and then listened some more. Probably the biggest thing that stood out the most during this ordeal was something that my Senior Advisor had told me as we were going through the "upgrade" process. I had asked her about my older software being compatible with the new Snow Leopard OS.

She said, "whatever isn't compatible, we'll replace at our cost. We know you can't work with a broken computer so we're not going to leave you in a lurch by leaving you with software that doesn't work on your replacement computer. To some it may not mean that much but I was blown away. It's definitely the first time I've ever heard such supportive and encouraging words from a tech.

In closing, I must say that I've never taken on "big business" before this. Quite honestly, I almost didn't call Apple at all. I was scared they might brush me off and humiliate me over the phone by inferring that nobody gets a replacement computer and not to even try. I almost felt guilty that I was calling asking them to replace a faulty product that they designed. Who needs it? I guess I can sometimes talk myself right out of something before giving it a shot. But the posts on this site helped out a lot and I am forever thankful for such a superb resource.

Thanks to everyone who posted and gave the little guy hope. I appreciate it! Steve D. Eventually it would not boot at all, stalling just after the startup chime. The technician noted there seemed to be some "moisture" on the bottom footing of the computer, and immediately after opening it, confirmed there was coolant leakage. Dismayed, I carried the computer back home. He waived the fee and transferred me to someone else, who immediately said, "Ah, you have a coolant leak--you must have a G5! Which is of course poison - many pets die every year from drinking it.

They either pulled it or moved it. I have a month-old daughter and the more I thought about it, the less I wanted to have a computer with a known safety problem sitting in my home. I emailed the same consultant and explained that I'd prefer to have a replacement MacPro, but she never answered.


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I called her and left a message explaining again in friendly but firm terms that I didn't want an unsafe computer in my house with a toddler The technician automatically ordered a new logic board, processor, power supply and cover, saying those were typically the parts needed in such a situation, and he told me it would take 5 to 7 days for repair. I asked him about the possibility of a replacement MacPro, and--contrary to testimonials on this site--he said "That would never happen," and refused the option.

Personally if I even got a free repair of a years out of warranty system I'd feel lucky - try that with Dell, HP, etc. Those that really have read all the posts here since as well as the news page posts on this must think I have Alzheimers to keep repeating this over and over and over Pardon my poor English, I normally speak Dutch Premium info on your site!!! Helps really out! I work with 2 Powermacs G5 Quad.

My 2nd G5 started some weeks ago acting bizarre Fans going berzerk, shutting down after a time After, I re-inserted the HD in the "faulty" G5, booted this worked and quickly I saw that the temperatures of "Core A" were rising after start-up from Quite a handy tool. They first send me telephonically to Switch an Apple store.

First they didn't want to accept the Mac, since I didn't buy it at their store. Yesterday-afternoon The person I spoke to, told me he had to talk to his superviser. Today, I went again, this time with the G5, completed with a carrying strap, quite easy, i read it on your site to this Switch-shop. They finally accepted the case. They say I will be soon informed about the following steps If you want, I can inform you. Kind regards, Herman Belgium " from Jan.

I didn't know about the leak until the Genius who bore a striking resemblance to actor Hugh Laurie; which made me feel very good about him. Who wouldn't want Greg House diagnosing their ailment? Mine was leaking clean anti-freeze looking liquid. There were several drops on the Mac's feet and some on the counter.

My Mac I am the original owner BTW has been freezing frequently - requiring forced shut down - for several months. Is that related to this leak? I am thrilled at the idea that Apple will do the right thing. God knows I've spent enough money on their products, and advocated for them without compensation as have so many of us over the past 15 years - they should do the right thing. But I'm horrified that this leak issue has not caused a recall! My G5 lives in my "office", which is a walk in closet in my 12 year old daughter's room. It is mere feet from her bed. Had this caused an electrical short or worse, led to a fire; the "right thing" wouldn't be anywhere near good enough.

I'm hoping to hear from someone at Apple soon I called the store to check on my machine, just prior to finding this page , but given the lack of disclosure about this - even within Apple - I'm not holding my breath. The fellow I talked with said my machine was "in Hold status" and that he'd e-mail further up the line to get me an answer as to whether Apple will cover my repair.

I'll let you know what happens. Thanks to all of you, I feel fairly well prepared to deal with this problem. He went downstairs, talked with someone an engineer I believe he said , and put through a full repair at Apple's expense. The parts have been ordered - including a new enclosure. I am impressed with Apple's footing the bill for my 5 year, 2 month, 1 week old G5, but I wish they'd seen fit to replace it with a Mac Pro as others have had such good fortune.

The timing of being without this computer is truly bad right now. I talked with an Apple Expert today in hopes of getting some reassurance regarding my fear of my forthcoming "new" Power Mac G5. My fear is that this computer lives less than 10 feet from my daughter's bed. How am I to deal with the dread that it will leak, short out, start a fire, etc.? I asked for a call from an Expert, and while filling out the form online, I chose "Possible Safety Issue" from the drop-down menu.

His advice was to sell the computer when I get it back - and replace it with a Mac Pro. Personally, I was waiting for the March update as it's close, and the current models are not my favorites not that I wouldn't have been absolutely thrilled to have had them give me one instead of building me a new computer from 5 year old parts , but I see his point. Financially I will be far less well off than those who've gotten the Mac Pros, but that aside - I'm still responsible if someone else suffers for this machine's failures.

Power Mac G5 Dual 2.7 GHz Teardown

Apple will not give me an answer that pleases me on this subject. Can you? How am I to trust that this machine will not hurt someone in the future? It may not be my family, but that doesn't lessen the responsibility I feel. Has it happened? I am 51 years old. I can afford a new Mac Pro. I've been an Apple consumer and advocate for 2 decades. I've owned about 20 Macs I have a small business as well as a family of techies and countless other Apple items.

I'm a kind person and am never confrontational. My mother was big into courtesy. So am I.


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I live in San Francisco close to Apple. He's been editing on my G5 for months, and now he's screwed! I feel I'm as deserving as anyone though I have real joy for those who have been given new machines when they couldn't have possibly afforded one. Had my old super-genius he was promoted to be a genius trainer still been at the downtown SF store I am certain he would have replaced it and I'd have been up and running for 5 days by now instead of waiting yet another week or more for a G5. Though I do not suffer from envy - - I can't even remember the last time I was remotely envious - - I feel it now.

I feel "cheated". I also feel ungrateful. How the hell can I feel cheated? All in all, this has been a very difficult situation. Now I feel like an ass on top of being profoundly inconvenienced. Please tell me I can feel safe about my computer when I get it back. I once again stressed my health and safety concerns and sought affirmation. I got a call 18 hours later. The rep was of the opinion that these repairs never worked out, so she went to her supervisor and got me a replacement offer! Mac Pro Quad 2. She also offered discounted upgrades.

They'll ship it in a few days with labels for returning my old PM. I am happy of course, with the final solution on my PM G5, but there is no excuse for their failure to, at the very least, have a procedure in place for their employees re this issue. Obviously a recall or published policy would be best. My time lost and stress dealt me were not only unnecessary; they damaged my faith in Apple. That is not good business.

Thanks again Mike. Gil F. San Francisco" Thanks - but no credit to me other than keeping this page alive for a couple years. I ask for deails in reports but none provided on this one - most of the last 13 years has been spent with back and forth mails asking for missing info, etc. I use my G5 for stitching photo panoramas and scanning on a 12x18 scanner, and I couldn't really do anything because the G5 would sleep on me once the processors started getting a workout.

The first thing I tried was to clean the entire thing out very dusty , but the problem persisted. Then I removed the 4GB of memory I'd added to the base configuration. No change. I reset the PMU. A quick Internet search of my problem led me to this thread on xlr8yourmac. My G5 was showing no external symptoms of coolant leakage. This morning, the foamcore was still white and dry. That will only show if there's significant loss of fluid for some time as many have been - some had horrific corrosion evident on disassembly - but the first step is to check inside cover has to be removed for early signs of a leak.

I've warned to check that frequently since posting this page in Aug. However most don't notice the problem until damage is already done from long-term coolant leaks. As the system still ran for months. This photo shows an example of white granular buildup that's evidence of a leak. My G5 tower was an early Air Cooled model, otherwise I'd have posted my own guide to inspection.

However with repairs often covered or as in your case and several others - a new mac pro - I'm sure some question the incentive to even check for leaks to catch them early. This morning, I tried one more time to get that darn pin and rivet out. For those of you having trouble with this, it's pretty easy to get the pin out of the middle of the rivet with a knife blade.

The rivet is another story. I ended up threading a small screw into the rivet and using that as a handle for wiggling it out. On the back of the heatsink cover, which had been on the bottom overnight, there was a single drop of reddish-brown fluid. I called Apple, got a case number, and an appointment at my local Apple store for 20 minutes hence I quickly pulled out the 2nd hard drive, slapped the G5 together, attached an old suitcase shoulder strap to the G5's handles, and headed to the Apple Store.

It's in a shopping mall, and the shoulder strap made the trip from the parking lot, through the food court to the store almost bearable. With the G5 up on the Genius Bar, the evidence of coolant leakage was even more dramatic. There was dried fluid residue on the plate beneath the processors, and corrosion back where the power supply attaches to the logic board.

I can't believe this thing was still running! I got what I expected from the Apple Genius. I pushed back, stating that I'd had to sort this problem out over several months, and completely dismantle the G5 to get conclusive evidence. In the mean time, I said I was pretty creeped out because the G5 had been running despite the potential of fire or electrical hazard. I told the Genius that I wasn't really even interested in repair because I didn't want another faulty liquid-coold system in my house, setting itself up to fail in two years.

I also mentioned my research on the Internet namely this site had taught me that Apple was still making good on repairs or replacement even on clearly out-of-warranty G5s - as late as November of , and I would like the same opportunity that others had received. He went and talked to the store manager, and after a little more back-and-forth, I left the Apple Store with a new Mac Pro. So, even though my story is similar to many others on this site, it's worth telling for these take-away points: My G5 was still running, and showing no outward evidence of coolant leakage.

Once I got the heatsink cover off, it was pretty clear it had been leaking for some time. I think that's really scary. The clear lesson in these reports is that leaks are usually present for many months before damage or problems appear. Severity of the leak can vary - some noted liquid outside the case rare overall but many never noticed any problems until major damage was already done. Just look at the corrosion in some of the photos - that did not happen in a week or even a few months.

Do remove the heatsink cover to investigate leaks. Pop the pin out and use a small screw to wiggle the locking rivet free. I could have resolved this G5 flakiness a lot sooner if I'd been able to get that heatsink cover off the first time I tried it. Hook a makeshift shoulder strap on your G5 if you have to carry it into a mall-based Apple Store.

It makes the trip easier, and gets you a lot of surprised looks as you walk down the aisles with the oddest of shoulder bags. Do not let Apple tell you this was a problem two or three years ago, but they're not addressing it any more. They know they have a problem with these things even if you have to poke them a bit to make good on it.

This is why I've repeatedlty said here I wish apple would post some official policy on Leak repairs. After 2 years though I've almost given up on that wish - but am thankful that many times they have covered it. And not just the owners that sent their experience - some didn't want to have their story made public. My story is similar to most here. My G5 2. All I got was the sleep light on permanently. With the machine being a June and knowing that it now being November , warranty was not even a consideration. The local shop told me to forget it as repairs would run as much as a replacement machineI resigned my G5 to the cupboard, not wanting to give up just yet.

After coming across articles regarding iMac main board issues and folk who had repaired them I thought I'd see if anyone was doing the same for the Powermacs. It was during this search I came across this site. I read each post and was nearly giddy with the possibility that I might get the G5 back up and running. I opened the side and removed the heat-sink cover and low and behold, green stains. I had not noticed any external signs of leaking so the though never even crossed my mind.

I was not the original owner as is the same for others posted here and I was taking nothing for granted but I crossed my fingers and called Apple Care. I explained how the machine had behaved and what I had found I also mentioned in am FYI non threatening, by-the-way, manor that I had come across some mention online that others had experienced the same issues and had been lucky enough to get some help as far as repairs. He listened and seemed to be taking notes and then asked me if I wouldn't mind holding. On his return he told me he was passing me to a second level tech who would get further details of this issue.

The next person I spoke with asked me how long I had had the machine and when the trouble had started and asked me to verify the symptoms and the physical damage I had seen. I described the green stains running down the heat-sink where in meets the processors and the damp feeling to the ambient pad. He asked if I could take some photos to clarify my description, three in total, one of the unit as a whole and two of the stains.

He said that once he had the pictures it would be up-to about 5 days before I heard anything. I sent the pictures that afternoon and waited. He told me that the engineers agreed that this was indeed a coolant leak, that they were dealing with these cases each on their own merits and in my case Apple were going to authorize the repair of my machine under warranty.

He told me to remove any 3rd party memory as it would not be covered. He asked me where I would like to take the machine and when.

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He then set up the appointment with the Apple store near me, gave me a reference number and told me he had spoken to them and they were up to speed with the case but to call him if there were any issues. When I got to the store I spoke with a very polite and friendly "Genius" who, after a few short questions and some deliberation, informed me that they had no memory to test the machine with, that this was more than likely and major repair running over the cost of a new machine and could take some time to complete, and bearing all this in mind he said he was going to swap the unit out for another product if that was alright with me.

There was no brain time expended on that one, so minus the box I received a new base model Mac Pro with a years warranty. All hail the mighty Apple, why on earth would I buy anything else after that. As long as they stand by their products like that I'll keep buying them, I don't know of many companies that will fix a 5 year old machine for free let alone replace it even if it was a design issue. O-rings leak, pumps fail eventually in anything , although in these cases often it's not detected until major damage is done. I did email my Apple guy and thank him very much, as I thank the entire Apple corporation for doing a nice thing and making my Christmas extra special.

Happy New Year -Nic C. It's a case by case basis decision apparently. I keep hoping eventually that Apple will post some official policy on Coolant Leaks. As some owners have not had an easy time trying to get repairs covered in the past. Our computer began acting odd at the beginning of last week. Fans ramping up, long tone at start up etc.

Throughout the week it kept getting worse and by the end of the week it would not even boot up. Tried all the tricks to get it to book and nothing. Took the unit to our local MAC service center and he said he could see right away that there was corrosion on the bottom of the computer which was a result from the coolant pump on the processor card leaking coolant. A little side bar, we are not the original owner and when Apple looked up the computer it had been de-activated by the university that was the original owner. An earlier report on a free repair also noted he was not the original owner - which surprised me.

Try getting a years out of warranty report LCS or otherwise from other mfrs even as original owner -Mike No Apple Care and no remaining warrantee on the computer. Apple must realize they have a design flaw in the liquid cooled processors and are standing by their name and reputation by taking care of their faithful computer owners. I explained to him what was happening and what my service tech had found.

They forwarded my call to a product specialist who put me on hold and called my MAC service provider. A couple minutes later he came back on the line and said it would be repaired for us at no charge. They are replacing the processor card LCP type again , the logic card as well as the power supply since the coolant had leaked down on and into the power supply.

I am told that the repairs will be completed by the end of this week. I kept on calling the store every day asking "is it there yet" like a little kid. About a month ago it started acting up, the usual for this problem! At first I didn't know what the problem was, so I tried the usual p-ram and even the reset button by the ram on the motherboard. I also swapped ram sticks I had four 1GB sticks but nothing would work. I was debating to sell it for parts or build a system on the same case I know a lot of case modifying but I was desperate.

I knew the power supply was still working cuz I could hear the fans. But no chime! On my last try of getting it to boot up, I put it on its side and moved the ram around for the last time hopping for some sign of life when I finally set it up and was getting ready to press the power button I saw a small amount of liquid on the rear bottom leg As soon as I mention green liquid he told me to hold and got his supervisor with in a few minutes.

I explained to him the problem and he asked me a series of questions I don't exactly recall but something about If there was any personal or property damage. After all that, he told me he would contact the Engineering Department to know how to proceed. A couple of business days later he called me back and told me to take it in to one of the stores he made the appointment for the next day. At the store the Genius asked me what the problem was, he saw some of the liquid and proceeded to order the parts. I just got back from picking up the computer and everything seems to be working great.

I dropped the computer at the store Nov 5th and the fix was done on the 11th six days later. I picked it up on the 12th. But they had originally quoted 7 or more days. Sorry if I wrote a big e-mail, but just wanted to be specific about the process since it help me calm me down reading other people experiences! One more time Thank you for keeping the site running, and updated And a last thank you to Apple for covering the fix after 5 years of service 2 years after Apple care had expired. A great way on keeping their customers happy and coming back!

I am so glad that I found your site it wasn't hard as it is at the top of a search for G5 coolant leak! Instead I decided to cut to the chase and call tech support and tell them I have an unresolved issue with a repair and that I wanted to talk to Customer Relations. I was connected and spoke with someone there. I told him my problem nicely and asked him what should I do after 3 Geniuses looked at the G5 and found no leak. I mentioned the safety issue and said that I felt like asking the geniuses if I brought it home and plugged it in I can be sure that I wouldn't get electrocuted because they are sure there is no coolant in there.

I told him I also asked if they checked the power supply and they said no it is sealed. I asked if they ran the coolant system or checked the levels -no. Asked what they checked and they couldn't say. He put me on hold and then came back and told me they would extend my warranty and cover any repairs needed. Shortly after I got a call and was told that the leak and damage was so bad that they decided to give me a quad-core Mac Pro. I have no problem obviously with how they handled this in the end, but it was a foggy course.

I hope this helps someone else. And again thanks Mike. I keep hoping one day Apple will post an official policy on these leaks. I've been a fan for a long time since the Quadra era and you have consistently provided a wealth of information for us geekier-than-average Mac users. We have three PowerMac G5 2. Two are sitting upright in our studio and one is rack mounted on its side, and travels frequently. About two years ago January 07 we had our first coolant leak.

We had just come back from the holidays and discovered the machine had a gooey green puddle underneath it. Long story short, I read your site and took our grievance to Apple. What followed was several hours of persistent head-banging followed by thinly veiled threats. Eventually the specialist s ran out of steam and escalated the case to the proper person, who finally offered to repair the machine at no cost to us. This story comes secondhand from my assistant--he was a trooper. About a week later we had a new motherboard, 2 processors and power supply.

That machine has been running fine since then, although I have noticed recently that the processor temps run consistently in the F range when under load. Cooked the power supply and a processor, but fortunately didn't leak outside the case. I called Apple, who asked me to take it to a local repair shop for diagnosis. The diagnosis confirmed coolant leak. Called Apple back to discuss.

My experience was markedly different; everyone I spoke to was courteous and sympathetic. I politely pointed out the encyclopedia of cases documented on your site, which caused them to immediately escalate the case. I went through a few more layers of specialists before ending up with one who started asking pertinent questions as seen here: I gently suggested that some other customers had been able to get repairs done. Once he had all the information he needed, he told me that I would hear from him in a few days.

Our third machine has been flawless so far hardware at least The only discrepancy is the number of operating hours. Again, a huge thank you to you and your site. Without this information we would have given up hope of maintaining these machines a long time ago. Best, Alex L. Stewart Levin Productions, Inc. English not native language "I found this site by googling my problem. The problem is a leak in my G5 dual2. It all started with a call to apple support to ask for a quote on the cost to repair the computer, or cost of repair parts, or what it also was to be the problem.

The were so kind to tell me at once that they will fix my compuer for free, it really triggered me to hear that - so it got repaired, they replaced nery everything inside the computer except the harddrives. However, it took me 5 days to wait for the repair to be done, I'am a photographer and normaly I have an insurance which covers incidents like this that I can rent a temporarly computer to work on so I can deliver the jobs to my own clients.

However, despite to my insurance company they claimed a force majeur that a rental computer will not be covered as it it is clearly Apple's resonsibility due a mfg fault once and my insurance company claimed that they do not wish at all to have my computer covered in my insurance and that Apple shall replace it to a new one instead.

I quoted all this to Apple and they do not want to help me any further then the repair they did, the repair was appreciated but in the end it came down to be a huge cost to me, rental computer for a 5 days with the Adobe CS package were very expensive - an excuse to my clients on that I can not deliver at the does not exist. And a computer that my innsurance company do not what to cover any more in the future happenings with it. It is off course a computer that's 4 years old, but I do have a dell computer 10 years old or plus give a few years which I run my accounting on, I didn't pay that much for the Dell - and the dell still runs flawless free of error.

Is there anything of knowledge and experience you guys can help me with to solve this with Apple!? Kind Regards, Patrick Sweden " I really don't know anything to suggest if your insurance doesn't cover this sort of thing. Saw your reports of G5's leaking and I was keeping a good eye on mine because with my luck I knew it was only a matter of time before it would go. I bought it new in August of and received shipment in September. Over the years it has had extra ram installed 6. It's running Tiger About a month ago it started acting up a bit, it started crashing when I was doing more than one thing at a time, and hanging in many different applications.

A log out and back in or a re start fixed the issue every time. Then about two weeks ago it wouldn't reboot. It would bong, but no boot screen. I sent it over to an Apple Care place to be checked out as I couldn't see any liquid leaking inside. They had it for two days and said they couldn't find any problems with it.

It passed all the Hardware tests. I asked them to leave it on for a few hours and see if they could get it to lock up. I told my boss to go get it because it would be cheaper to just buy a new one. After the G5 was back I had another look at it. It booted up fine and seemed to run ok after I removed 6 gigs of Ram. It would restart no problem. I put the Ram back in and no restart!

So I called the place I bought the Ram and was sent new Ram. I put that Ram in and again no boot. Next I put in a new battery. It booted right up even with that Ram I thought was bad in it. So now I was thinking maybe just a battery? I ran it like that for a few days with no problems. Then I had to restart to clear out the font caches and it wouldn't reboot. I opened up the side and took out the battery, replaced it after a few minutes and tried to boot it. It booted right up! So for the next few days anytime I needed to reboot I shut down, removed the battery and it restarted no problem.

Then on Monday of this week after a shutdown it wouldn't restart no matter what I did. So I opened it up and still couldn't see anything leaking. I removed the processor shroud and there it was, a small pool of a light green liquid. The next day we got a call telling us to take it in to get it repaired for free! I still can't believe it! Apple has got to be the best company I've ever had the pleasure of doing business with, and I will let everyone who asks where to buy from to go Apple!

Thanks again for this site Mike, this isn't the first time it has helped me out and I'm sure not the last. Mike K. You can add my G5 dual 2. Mine had been showing most of the same symptoms the others had shown; extremely loud fan, would not sleep and would run all night with loud noises if I didn't shut I down, would shut down unexpectedly, occasionally would not boot up again, etc I shut down, and opened the machine looking for a leak but saw none.

I did not turn it on it's side at that time as I was afraid if it leaked I might damage the hard drives. Upon plugging it in again and trying to restart, I had no power, no noise at all. Upon setting it on their counter, the liquid began dripping out of the bottom. After opening it, you could now see corrosion on the bottom. The Apple tech was not familiar with coolant leaks so went to ask his manager and call some other Apple Stores.

He came back saying there was nothing he could do here, but referred me to customer relations. He wrote up a report stating he saw the leak and corrosion and gave me the number to call. They removed the hard drives for me and I requested to leave it at the store as I didn't want to haul the dripping liquid machine in my car.

Do you know anything about those? From what I have read online, Only 2. I'm wondering if they are planning to put in a slower processor as well. I have been battling with them for almost a month. The latest offer is to choose between: Plus Aperature. G5 fails to boot due to coolant corrosion-caused PSU failure.

Pictures at http: I wrote him to ask if the repair was covered Yes. Apple repaired the G5 at no cost. The power supply and CPUs were replaced. Fairly prompt: Fortunately, based on the information you've posted here at xlr8yourmac, I was able to get the machine fixed at no charge. My story is very similar to others - the machine had been showing signs of the problem before final failure - fans running at high speed, etc. However, after returning from a vacation, I found the mac would no longer turn on.

Opened up the side panel, and sure enough - there were clear signs of corrosion. After finding the information on this site, I gave Apple a call to see if I could get my machine fixed. Here's my experience from the phone call - the first level tech who was very friendly, and wanted to help was insisting that I take my mac into an Apple store to have them diagnose the problem. I reassured him that it was a very clear case of the liquid cooling system failing, and that there was coolant and corrosion below the processors.

I also relayed to him that I had heard of owners of other machines speaking with product specialists and in turn engineers , and being authorized to have warranty repairs completed as an exception. He agreed that he wanted to get my call to a level 2 specialist, and began looking for the verbiage that would allow him to do that.

This next part it's been mentioned here before, but I thought it would be good to highlight was important - after looking, he had no way of telling the system that I had a coolant leak - the closest he could come in diagnosis was to say 'power supply failure', and since my system's serial fell outside of the PS repair program, he couldn't escalate my case.

After talking for a few more minutes, his supervisor whom he had been talking to, on and off, trying to find a way to escalate within the normal system came back with the news - since I had coolant leaking again, this was the most important part of the process , the problem could be classified as a health and safety issue, which results in the immediate escalation to a product specialist. Just be polite and calm, and if you mention you feel that you have a health and safety issue again, they were kind enough to do it for me on this call , you should be good to go.

As soon as I got on the line with the product specialist, it was a matter of minutes before he called the engineering department for authorization to fix the machine under a warranty exception. In my case, I called late enough in the day that the engineers weren't still at work, and I had to wait for a call back at this point.

A few days later, I called Apple back up, and was transferred to the engineering department the engineer apologized for not calling back sooner - it sounds like they normally try to call within a day of getting the request , and was informed that Apple would repair my G5 at no cost to me.

I scheduled an appointment at my 'local' Apple store about an hour and 15 minutes away , and took my heavy G5 in for service. They asked a few redundant questions in store like - what do you think the problem is with this mac , opened up the machine, and saw the corrosion. They went ahead and ordered parts on the spot, including a new motherboard, new processors including LCS , new power supply, and in my case, due to the corrosion, a new enclosure. They estimated days for the repair.

Fast forward to 6 days later. I called to check my repair status, and was informed that the last piece had shown up that day the new enclosure , but that they were waiting on a call back from engineering before proceeding which struck me as odd. I was very pleased to say the least , and we walked through what options I still needed installed as extras at no charge to match my original build. They've ordered the new mac, and it should arrive at their store within the week for me to pick up.

A few quick notes on the whole process - I was not the original owner of the G5 which is why I was not expecting much to come from the call I did not purchase Applecare for this machine I probably would not have gotten transfered to the level 2 product specialist had it not been for classifying the problem as health and safety The decision of the store to replace my G5 with a Mac Pro was based solely on the amount of corrosion they saw, and getting clearance from a product engineer to make the replacement.

In chatting after the fact with the individual responsible for working on my machine and my thanking him up and down , he said that he really felt it was the right thing for Apple to do - this would lead me to believe that a lot of the decision tree for new vs. Bunch of smart-! I am currently struggling with the CPU brackets and the bolts fixing it. It seems to be some kind of "wonder"-screws that no of my screwdrivers nor bits are able to handle. Im actually considering just ripping the whole thing, even though I might damage the case and other components which I might want to keep to my build.

I think you mean the hexagonally-screws to get off the CPU with the cooling fins.

PowerMac G5 Quad service manual

For those you will need an allen wrench with 2. To get at the two screws in the round hole of the middle from the cooling fins you will need an extra long allen wrench minimum 16cm or longer. The other screws at the CPU brackets are called torx screws looks like nearly a star or something like that. Select a Language: Help Translate iFixit. Michal and 2 other contributors. Difficulty Moderate. Steps Time Required 30 - 40 minutes. Sections 1. Motherboard 12 steps. Flags 1. Member-Contributed Guide An awesome member of our community made this guide. Introduction I will teach you how to replace the motherboard.

Tools Buy these tools. Step 1 Motherboard. Add a comment. Add Comment. Step 2. Step 3. Step 4. Step 5. Step 6. Step 7. Step 8. Step 9. Step One comment.

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