On Feb 23, 2006, at 10:33, Tim Stephens wrote:
How hard is it to crack a G4 iMac? I have a G4 iMac that sometimes
won't boot. Last night I was able to boot it, and it passed all of
the extended Apple Hardware Test, but then 30 minutes later it
wouldn't boot.
I see the this take-apart documentation: <link snipped>
For what purpose are you taking this apart? If it's "just for a
look to see if there's anything wrong", then you most certainly
should not be attempting this... If you have a new HDD, or other
components to replace what's in there already, go ahead.
I'm taking it apart to try to repair it - note in my original post
where I said it doesn't boot anymore. Since it passed the Apple
Hardware Test the one time I did get it to boot, I figure either the
PRAM battery is dead, or the power supply is shot.
Anybody have any experience here? What's the worst that could
happen? I'm guessing the worst that could happen is that I'd have to
pay someone to put it back together.
I imagine that the worst that could happen is that you'd toast the
internals. Personally, I'm not one to shy away from this kind of
thing: make sure that you get a new tube of heatsink compound to
replace what you'll smear all over your fingers in the take apart.
You can buy it at electronics shops (not sure of the relevant shop
names because I don't know what coutry you're in).
Yup - I found a local computer shop that has the stuff for $3 for 3
tubes. I knew it would be cheap. :)
Take plenty of care, make sure that you're grounded and don't force
anything.
Cheers,
Tim
Thanks, Tim.
BTW I found this site that will do an overnight power supply swapout:
http://www.techrestore.com/xcart/product.php?productid=16488
I figure I'll crack it open and see if there are any loose wires or
anything. If nothing looks broken, I'll do the power supply swapout
- it's only $130.
Other than the power supply and the PRAM battery, I can't think of
anything that would need replacing. The DVD, USB, LCD, CPU, RAM,
fan, and HD all work - what else is there? - and all Apple Hardware
Test tests pass. The only other things I can think of are the PRAM
battery & power supply... anything else?
Daniel
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