Chosen Solution
I would remove the new memory as a first step. If that fails considering all you’ve done I would begin to think about a CPU, logic board or power supply failure. Please don’t do anything rash until we hear from mayer on this. Good luck. Here is a link to the ebay G5 parts page http://www.ebay.com/sch/i.html?_nkw=powe…
I am having the same problem - any more info on this situation?
i have the exact same problem, my one is a Dual Core G5 from 2003 (from what i believe is the date this came from) and the disc drive Works, i have tried OS 10.4, 10.4.3 and 10.5. ALL to no avail. i get a light grey screen with the slightly darker grey apple logo in the middle, i have been using a third party hard drive because the previous apple one was buggered, i got a loading logo under the apple logo once, but never again. ANYONE WHO CAN GET AN ANSWER FOR THIS, COME THROUGH!== Heading text ==
