Anybody tried to repair an iMac G5 motherboard?

Our iMac G5, the first version, just died a couple of months after the end of our Apple Care subscription! Sic!
Anyway after consulting some serviceproviders we had to accept the death of the motherboard, but the last serviceperson we asked, asked me to open the shell and tell me what the capacitors looked like. There are 25 of them and almost 10 had something leaking out from the top, most of the others were bulging and almost bursting.
OK you have to buy a new motherboard or buy a new computor - or do as he successfully did - change the capacitors to new ones! Since I know a little about electronics and how to handle a soldering iron I wanted to give it a try. If I could get my mac up and running for some $50 instead of $1200 it would be worth it.
I checked the values of the capacitors - I thought. But 5 of them had a different value than the others. That I didn't notice before removing all of them and now I don't know where they sat. Is there anyone who can help me out. Maybe tell me the C-numbers of the 1000pF 16V capacitors or discribing where they shall sit.
le.b

That's also one of the reason's why you want to get the the MLB replaced.
As an ACMT, I can tell you that the issue is related to what we call a 560 issue
otherwise known as the iMac Repair Exchange Program. The capictors that
burst on the MLB pretty much trash the MLB, which also affects the connectors
to themain components, one being the LCD, which means that your
LCD Connecting port is blown and it isn't telling the LCD when and how to backlight.
The fact you are getting power to the LCD, and images, means that the LCD is ok.
But your MLB controllers are shot, I'd be surprised if the fans don't constantly run,
you often have disc access errrors from CD, etc.
no easy answer but I'd get the MLB replaced ASAP. Eventually you'll make the problem worse.
In any event, a qualified Apple Service Provider should only be charging you
out of warranty Labor and Part exchange price from Apple. I can't quote on
their Labor charges, but a Mother board exchange for an OOW bad MLB
is only $535 US.
YMMV, I'd shop around......

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