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Old Apr 24th, 2010, 06:08 PM   #1
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Fixing iMAC G5 is it worth it

Long story short i got a hold of a 20in iMAC G5 which needs to have its capacitators replaced is it worth the trouble? , im in to tinkering but just want to know how much time and effort it needs i looked online seems i can turn this to a LCD which would be nice but with may take some time to complete.

So just wondering what the best option to do with this?

Thanks
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Old Apr 24th, 2010, 11:47 PM   #2
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If it were me, I'd take it as a challenge and have a go at trying to restore it.
The G5 imacs were a very decent computer, and the last of the PPC line as it relates to Apple.
Besides that, it is not heavy enough to make a decent boat anchor.
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Old Apr 25th, 2010, 12:06 AM   #3
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If you have good soldering equipment and moderately good soldering skills, it's certainly worth it. I've repaired one for a 17" iMac G5, it took me about an hour and 14$ of parts

You will need a fairly high-power soldering iron, and a magnifier light or soldering microscope will help but not a necessity.

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Old Apr 25th, 2010, 08:12 PM   #4
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You cannot turn a 20" iMac into an LCD for any other computer. The midplane/logic board provides the signals required by the LCD in the iMac G5. They are not like the new Core i5/i7 iMacs that can be used as an external display.

I've replaced caps on the 20" and the 17" iMac before. Bought the capacitors from Jim Warholic (Just google him) and it took me about 2 hours per iMac. Best of luck!
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Old May 9th, 2010, 06:01 PM   #5
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Help in finding whats wrong with my iMAC G5, i replaced the CAP's on the logic board and i see led solid green on led 1 but it wont turn on i do hear like a click i giess when i press the power botton but other than that no fan,display,chime.

any idea;s what else i can try there is no SMU reset apparently it does it automatically when i unplug/replug power.
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Old May 9th, 2010, 07:16 PM   #6
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It's usually the capacitors in the power supply (secondary side) that need to be replaced, not those on the motherboard.

Cheers,

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Old May 9th, 2010, 08:42 PM   #7
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Thanks i am looking into the PSU now but trying to see where i can get a power supply in toronto
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Old May 10th, 2010, 06:24 PM   #8
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Quote:
any idea;s what else i can try there is no SMU reset apparently it does it automatically when i unplug/replug power.
which imac g5 do you have? is there no SMU reset button on the logic board right beside the LEDs?
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Old May 10th, 2010, 06:29 PM   #9
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there is one button under the fan, when i press it it looks like the power gets pressed but nothing happens, i actually hear a zapping sound everytime i press the the power switch or the button on the logic board
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Old May 11th, 2010, 08:41 AM   #10
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Quote:
Originally Posted by qman View Post
Help in finding whats wrong with my iMAC G5, i replaced the CAP's on the logic board and i see led solid green on led 1 but it wont turn on i do hear like a click i giess when i press the power botton but other than that no fan,display,chime.

any idea;s what else i can try there is no SMU reset apparently it does it automatically when i unplug/replug power.
Depending on how old it is there may be an internal SMU reset (below the internal power button to the left of the LED's

iMac G5 Reset Button: Locating the iMac G5 logic board SMU | Mac Users Guide

Quote:
Originally Posted by qman View Post
Thanks i am looking into the PSU now but trying to see where i can get a power supply in toronto
FWIW, if your G5 iMac needs a new PSU, the Apple Store @ Sherway Gardens told me they would replace it for $100/parts and free labour as long as the serial # was eligible under the now discontinued extended warranty. That was about 1 month ago, so you might want to call them.
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