It's worth a trip to Apple to get a quote there before one orders the
parts for a DIY.

About a year ago my wife's 2007 iMac blew out its supply. I priced a
replacement from OWC or similar and I was all set to order it and open
that iMac up (very tricky little buggers), but on a whim we dragged it
down to Apple first.

They quoted a price for repair, including parts and labour, that was
about 20% less than the mail order supply alone. So we let Apple do
it. Three days later we had our iMac back good as new.


On Thu, Jan 30, 2014 at 3:00 PM, John <[email protected]> wrote:
> I'm a PC guy, so I don't know much about Macs, especially the PowerMac,
> but I did a quick search & I think a replacement power supply should be
> available fairly cheaply if that's what is wrong with it.
>
> I also found a page devoted to how to get the power supply out:
>
> http://www.ifixit.com/Guide/Power+Mac+G5+Power+Supply+Replacement/1893
>
>
> On 1/30/2014 2:43 PM, David Mann wrote:
>>
>> Not easily - I have the equipment but the connections are pretty well
>> covered.  I might have a closer look at it later today.  I also want
>> to check out any caps that I can find on the main board.
>>
>> On Jan 31, 2014, at 8:19 am, John <[email protected]> wrote:
>>
>>> Do you have any way to actually check for voltages coming out of
>>> the power supply?
>>>
>>> On 1/29/2014 11:19 PM, David Mann wrote:
>>>>
>>>> Thanks Zos, you're pretty much saying what I thought.
>>>>
>>>> I took the power supply out earlier today and had a look to see
>>>> if any caps (or anything at all) had suffered obvious failures
>>>> but it looked pretty good.  Minimal dust, too but I vacuumed it
>>>> out, gave things a wiggle and put it all back together with no
>>>> change in behaviour.
>>>>
>>>> I'm only annoyed because of the scanner.  I'll have to check
>>>> whether I've scanned all of my 35mm slides.  I scanned the last
>>>> of my medium format stuff last year.
>>>>
>>>> Cheers, Dave
>>>>
>>>> On Jan 30, 2014, at 2:12 pm, Zos Xavius <[email protected]>
>>>> wrote:
>>>>
>>>>> It should start up with a bad battery. Your power supply is
>>>>> most like dead or the caps on the board have failed.
>>>>>
>>>>> On Wed, Jan 29, 2014 at 8:08 PM, David Mann
>>>>> <[email protected]> wrote:
>>>>>>
>>>>>> Hi all,
>>>>>>
>>>>>> I started up my old G5 to do some slide scanning today but
>>>>>> it seems to be on the blink.  At first I had some strange
>>>>>> problems communicating with the scanner but it came right and
>>>>>> I got a couple of scans done.
>>>>>>
>>>>>> I left the machine to idle while I had lunch but when I came
>>>>>> back it had frozen up and I had to hold the power button down
>>>>>> to get it to shut down.
>>>>>>
>>>>>> Now it won't start up :(  The fans and hard drives spin up
>>>>>> but that's it.  No chime, no signal to the display.  The
>>>>>> power LED only lights when I press the power button.  I think
>>>>>> it was lighting up at first, but it stopped after I did the
>>>>>> PMU reset (see below).
>>>>>>
>>>>>> I've tried re-seating the video card and the memory, tried
>>>>>> starting it with the hard drives unplugged, and also with a
>>>>>> different monitor connected to the other port on the video
>>>>>> card. I'm not able to get it to respond.
>>>>>>
>>>>>> I've tried resetting the PMU / SMU using these instructions,
>>>>>> with no luck. http://support.apple.com/kb/HT1939
>>>>>> http://support.apple.com/kb/HT1436
>>>>>>
>>>>>> I also followed the procedure to reset the PRAM but I didn't
>>>>>> hold much hope. http://support.apple.com/kb/HT1379
>>>>>>
>>>>>> I'm now at the conclusion that the power supply is probably
>>>>>> faulty.  Do any of our resident Mac experts have any further
>>>>>> suggestions?  It's a first-gen single-processor 1.6GHz G5.
>>>>>> I just checked and it's just a couple of weeks over 10 years
>>>>>> old!
>>>>>>
>>>>>> I've wondered if it would be worth replacing the battery on
>>>>>> the motherboard but I'm not really sure.
>>>>>>
>>>>>> I've only kept that machine around because it has no resale
>>>>>> value and Minolta didn't release drivers for later OS
>>>>>> versions because they exited the scanner business.  I
>>>>>> couldn't stand Vuescan when I last tried it so I don't really
>>>>>> want to go down that route.  I guess the good thing about it
>>>>>> having no resale value is that I can replace it cheaply
>>>>>> through the secondhand market.
>>>>>>
>>>>>> Unfortunately I was just getting started on a project to
>>>>>> scan some really old glass-plate slides for someone :(  Might
>>>>>> have to resort to a macro lens and a light box.
>>>>>>
>>>>>> Cheers, Dave
>
>
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