I'm not sure that Apple would cover this unit, since I'm not the  
original purchaser (was a flea market special), and it seems that the  
logic board may have been replaced once before already (the original  
ethernet ID has been stickered over). We actually have two Rev. A iMac  
G5s with dead logic boards, the other being a 17" 1.8GHz model which,  
upon startup, exhibits a brief flash of gray on the screen, followed  
by the fans kicking into high speed after the screen goes blank.

Anyway, for better or for worse, I went ahead and purchased a  
replacement logic board for both of them from a reputable seller. The  
question I have now is, are there any specific tricks with regards to  
iMac G5 logic board replacement? Would prefer to not break anything in  
the process...
-Adam

On Feb 3, 2009, at 8:55 PM, Dennis Faulkner wrote:

>
> I bought two of the last of the G-5's with the old Motorola chips -  
> one I had, the other is crated up at my mom's place since she moved  
> far away. Mine eventually died, and was replaced under the AppleCare  
> warranty for the new Intel G-5.  No performance difference to me,  
> and I think Apple may fix yours under a recall or something like  
> that - I would contact Apple and see what they will do.  Otherwise,  
> I would ask questions of the vendors you are talking with on ebay -  
> if they have a good history of satisfying their customers, they will  
> probably gladly tell you if the logic boards they are selling are  
> upgraded from the original Apple logic boards.  I have dealt with  
> ebay vendors for years, and while there are some crooks, I have  
> very. very, rarely had a bad experience - and I have bought a  
> washing machine, electronics, household stuff, lots of stuff on  
> ebay.  For the most part, e-bay is a proud community, and most  
> vendors are happy to answer questions on even an item selling for a  
> dollar or two.
>
> That being said, if I don't like the "feel" of the ad I am reading,  
> I don't buy from that vendor.  I don't need anything bad enough to  
> deal with a vendor I don't care for. And the vendors I do care for  
> (almost all of them) - I add to my favorites, to keep abreast of  
> what items they are selling - kind of a trust thing.
>
> Dennis, San Diego
>
>
>
> On Tuesday, February 03, 2009, at 07:28AM, "Adam Vaughn" 
> <[email protected] 
> > wrote:
>>
>> Hello everyone. I used to be on this list back before it was on
>> GoogleGroups. Recently picked up a 20" Rev. A iMac G5 at a flea  
>> market
>> for the princely sum of $30. At first, all that seemed to be wrong
>> with it was that the hard drive and memory had both been stripped out
>> of it (I think it previously belonged to a school). After ordering  
>> the
>> needed parts and installing some RAM, the screen came up with the
>> expected system folder '?' icon, but with faint pinstripes down much
>> of the screen. Running Apple Hardware Test v. 2.2.1 when the
>> pinstripes are on the screen results in the following cryptic error
>> code: "2NVD/1/4 2103" during the video RAM test phase, and no other
>> errors.
>>
>> Anyway, I managed to get OS X 10.4 installed on the HD without any
>> pinstripes on the screen, though it froze up at one point during the
>> install. After successfully completing the installation, it had a
>> couple freeze-ups at first (graphical gibberish would appear on the
>> screen, followed by a kernel panic), after which I ran AHT again, not
>> getting any pinstripes on the screen, and it passed several tests  
>> with
>> flying colors. Afterwards, it ran successfully for over 2 days, but
>> while trying to play a YouTube video, parts of the screen once again
>> went scrambled, followed by yet another kernel panic. Ever since  
>> then,
>> the screen now goes blank during the startup process, after a light
>> blue screen appears.
>>
>> My question is, what might the problem be, and might it be worth
>> fixing? I've seen replacement logic boards being sold on eBay for
>> $175, but I can't be sure if they won't go bad like the boards in  
>> many
>> other iMac G5s have. I've already sunk an additional $110 or so into
>> this $30 machine, so I'm not quite sure what to do next. Thanks in
>> advance!
>> -Adam
>>
>> --
>> Adam Vaughn
>> Collector of old computers, video game systems, radios and other
>> electronic
>> equipment...
>> Visit my page at
>> http://www.electronixandmore.com/adam/index.html
>>
>>
>>
>>
>>>
>>
>>
>
> >

--
Adam Vaughn
Collector of old computers, video game systems, radios and other  
electronic
equipment...
Visit my page at
http://www.electronixandmore.com/adam/index.html




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