Hi Experts I have a 2004 version of an I-MAC G-5 1.6Ghz that starts up fine, arrives at the desktop fine, allows me to work for a while, (90-129 secs) then it shuts itself off. NO Variation.
Capacitors all look like new. Tried different memory. Other than that, I do not know what to do, to find the cause of this behavior. On a scale of 1-100, I am less than a one on a MAC machine.
QUESTION IS:----What is causing this behavior and what is neccessary to repair it?
Thank you in advance,
PS: I have an identical machine (to learn MAC) in the basement that works fine, but it contains 4-5 severely leaking capacitors and I was thinking of trying to swap Motherboards. Unless of course the MB(Board Logic) is what is wrong with this one. Anyways, that is why I need the Experts.