will not start up from HD or CD
I am trying to repair this iBook and am not having any success. When the power button is pressed, the screen lights up, the Apple logo appears, and after a few seconds the universal "NO" sign appears and it goes no further. When I try to start with a CD, it spins, and it sounds like it is starting up. However, all I get is the Apple logo on the screen, and after a few seconds it just freezes with the Apple logo.
Here is what I have tried so far.....replaced the hard drive, replaced the logic board, replaced the AC Adapter, replaced the fan, replaced the memory, and bought new CDs for Panther OSX 10.3. I can get it to show target mode with another Mac, but it does not show a HD, just the CD. I have noticed the fan never starts up, but don't know if that is normal or not. I'm at a total loss, and appreciate any advice.
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