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pstearns13
Nov 18, 2009, 08:13 AM
My PowerMac G5 Quad 2.5 Ghz has been diagnosed by a Tech at an Apple store as having a failed Logic board and Processor(s). The machine is not even 4 years old and was in immaculate condition. Estimated cost to repair $3000+.

Anyone else having problems?

Let's hear from you.



plong
Nov 18, 2009, 08:32 AM
Yep, my dual 2.0 G5 (jun '04) just went belly-up in the exact same fashion. Tech said it'll cost $600 for him to fix it. I can buy another computer for less than that!

This puts me in the unfortunate position of someone who needs a new computer 12 weeks before Macworld... :(

I've been tossing the idea back and forth of buying a G5 on ebay and waiting it out, or jumping in for a Mac Pro.

sdh1982
Nov 18, 2009, 08:42 AM
Got 3x PowerMac G5 towers here, all Dual 2.5ghz, also about 4 years old.
All have had logic board and processors replaced, i have assumed the replacements to be reconditioned. One of them has had a second replacement due to it only running off one processor when we got it back. Two of the machines have suffered from liquid coolant leakage which was a known fault and apple did the work free of charge even though machines out of warranty.
(they didnt replace the damaged carpet tiles where the G5's where sat though)

All the above has happened in the last year, but to be fair all have been used quite intensely pretty much every day for design work, video, 3D rendering etc, i would have been surprised if they had lasted this long without something going wrong.

Steve

300D
Nov 18, 2009, 12:48 PM
My PowerMac G5 Quad 2.5 Ghz has been diagnosed by a Tech at an Apple store as having a failed Logic board and Processor(s).

Its known as a "leaking cooling system". Very common problem and the eventual fate of ALL liquid cooled G5 machines.

Too bad it didn't fail a few months ago if you had AppleCare, you could have gotten a free Mac Pro replacement from Apple. Now you're SOL.

iVoid
Nov 18, 2009, 12:54 PM
This puts me in the unfortunate position of someone who needs a new computer 12 weeks before Macworld... :(


Don't expect refreshes during MacWorld. Apple's stopped attending and won't base their product cycle on MacWorld any more.

Of course, Q1 is a possible refresh for the MacPro based on Intel's schedule, so you might still get a refresh around then anyway. :)

plong
Nov 18, 2009, 01:33 PM
Don't expect refreshes during MacWorld. Apple's stopped attending and won't base their product cycle on MacWorld any more.

Of course, Q1 is a possible refresh for the MacPro based on Intel's schedule, so you might still get a refresh around then anyway. :)

Key word: POSSIBLE :confused::)

I took the advice of some others who told me you can never "win" the waiting game with Apple, and just ordered my first Intel Mac Pro.

w00t!

300D
Nov 18, 2009, 01:39 PM
I took the advice of some others who told me you can never "win" the waiting game with Apple, and just ordered my first Intel Mac Pro.

Now you just LOST the game by buying 8 month old hardware.

pstearns13
Nov 18, 2009, 03:31 PM
Actually the problem is with the logic board and not the cooling system.
The processors may be bad as well but the tech couldn't get that far to determine if they are an issue.

Seems to me that a logic board should last longer than 3 years and 9 months.

300D
Nov 18, 2009, 03:37 PM
Sorry bud. If the logicboard and CPUs are dead, its the cooling system.

fahne23
Nov 18, 2009, 07:49 PM
300D is right. Most likely the coolant leaked and fried the logic board. Happened to my G5, Apple should cover the repair cost even if it is out of warranty.

iamcheerful
Nov 18, 2009, 08:37 PM
Recently shared on Xlr8yourmac (http://xlr8yourmac.com/systems/G5_coolant_leaks.html#storytop) is a case involving a Power Mac --- 2 years beyond AppleCare and yet been fixed for free etc ...

(from Nov. 13th, 2009 mail)
"Hello Mike, I first want to thank you for having this site up and keeping track of all the G5 leaks, and the resolutions people received from apple. I have a G5 DP 2.5GHz, bought it the very first day it was available. (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! locking up, fans blowing full blast, multiple tries to boot up after an overheating instant.
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... a clear slightly green with a slippery texture (not quite like car coolant but similar).
(FYI - Don't forget the tip (sticky) above in red on checking for leaks by placing the case (w/cover removed) open side down for several hours/overnight as another way to check for leaks if they're not visible from just visible inspection normally.-Mike)
A friend of mine google G5 green liquid, and bingo! (this page)

I called applecare, talked to a level one tech who was really friendly and told me my G5 was out of warranty but to go ahead and tell him my problem. 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 5-10 (I don't exactly recall) but something about If there was any personal or property damage. (as I mentioned earlier, IMHO the reason for the repairs out of warranty is the hazard potential (considering all metal case w/AC PS in the bottom, above coolant source)-Mike) He asked about smells, if sparks were visible, fire, electric shock, any smoke signs or smell.
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. Logic Board, Processors/cooling system, Power Supply (in the final paperwork they also have a level 2 repair).

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! and thought I should do the same.

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!
Cesar
from Chicago"

Source: Link (http://xlr8yourmac.com/archives/nov09/111309.html#S26252)

pstearns13
Nov 18, 2009, 08:51 PM
I tipped the computer on its side for 24 hours and no liquid appeared.
How can you identify a cooling system leak if there is no liquid?

iamcheerful
Nov 18, 2009, 10:39 PM
This link (http://www.everymac.com/systems/apple/powermac_g5/faq/powermac-g5-liquid-cooling-info-leaks-issues.html) may or may not have answered your question to your satisfaction. But I hope it gives rise to an idea on how to assist in identifying a cooling system leak in your specific situation.

iamcheerful
Nov 18, 2009, 10:39 PM
n/t

300D
Nov 19, 2009, 12:11 AM
I tipped the computer on its side for 24 hours and no liquid appeared.
How can you identify a cooling system leak if there is no liquid?

Thats because its a leak, not a total fluid loss.

http://rknochenmuss.ch/G5leak/G5.html

brisbaneguy29
Nov 19, 2009, 12:21 AM
I have a QUAD G5, ordered when it was first released and has been working flawlessly since then. I hardly even ever power the system down. No sign of leaks or panics / overheating. I have no doubt that given the way the cooling system has failed in most other machines, mine will one day bite the dust. I hope not though.

pstearns13
Nov 19, 2009, 07:13 AM
Thanks for the links to the 2 reports on leaking issues. I'll have to dig into the machine to see if I can see any internal damage.

If there is none, any suggestions on the best way to piece out a machine?

zmttoxics
Nov 19, 2009, 07:20 AM
Don't pay too much attention to 300D. Motherboards, cpus, ram, etc can fail for any number of reasons, just so happens that these machines commonly suffer from coolant leaks. :)

pstearns13
Nov 19, 2009, 07:56 AM
Whether it is a coolant leak or not, the fact is that the logic board is shot and too expensive to replace. The only way to salvage any value out of it is to piece it out. If I see evidence of a leak I'll bring it to Apple's attention and see what they say. If not, I'll be selling parts on ebay.