My G5 iMac is working fine, though I did have to replace the power supply a
couple of months ago. That said, however, I was forced to move to an intel
iMac (21.5") due to the requirements for the iPhone 5. If you do go to
Intel, try to get one that runs Snow Leopard (Mac OS 10.6.x) if you can.
Unless you have something that mandates it, stay away from Lion/Mountain
Lion (Mac OS 10.7.x/10.8.x); I'm having lots of problems with Lion.

-- 
Sincerely,
Dennis

On Wed, Oct 10, 2012 at 12:08 PM, Robert Esposito <[email protected]>wrote:

> Bad capacitors plagued the G5 iMacs. I have opened several of those and
> the work is in replacing capacitors on the logicboard not opening it.
>
> My 24 inch iMac has been a reliable performer since day one. When it comes
> time to,upgrade, I plan to keep it in my workshop and retire a G5 PowerMac.
>
> I recently refurbished a 27 inch iMac which I would have bought from its
> owner but he wouldn't sell it. Except for a software issue which I resolved
> for him, he never lost a day using his 27 inch.
>
> Best Wishes,
> Bob
>
> Sent from my iPad
>
> On Oct 10, 2012, at 1:45 AM, ValterV <[email protected]> wrote:
>
> Hi all!
> I just joined this group, because I'm pondering about getting an used
> Intel iMac (replacing a PM G5 DP 2.7), and I need your expertise. :-)
>
> I am interested in the 24" models, but I did a little Googling and it
> seems the 24" models were problematic:
> - Googling "imac 24 problems" gives almost 32M results
> - Typing "20" instead of "24", it gives 61M results
> - With "21.5" it gives a little over 1M
> - With "27", 14M.
>
> Does it mean the 24" iMacs were quite troublesome?
> Basing on these figures, the 24" seems the worst model, besides the 20"
> model (but the 20" could have been sold way more); and the 21.5" seems the
> less troublesome (or the least sold, but It doesn't seem likely).
> The 21.5" model would be my second choice, if the 24" isn't much realiable
> (processor speed would always be more than my G5, so it's not an issue).
>
> Since I'm going to buy a relatively old machine, I would like to know in
> advance if I'm getting into likely trouble.
> I'm somehow good with hardware and troubleshooting, but opening the iMacs
> is no piece of cake, so I try to avoid it as much as I can.
> I heard several times about bad capacitors' fault in iMacs, but I don't
> know if they happen in every iMac model or just in some.
>
> Any info about reliability would be welcome.
> Thanks in advance,
> Valter
>
>
>

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