WTB: 12" iBook G4 Logic Board

is the video problem the common garbled video or black screen on boot?- a common problem with those machines

if so check these sites out which may save you a few hundred bucks

http://www.powerbook-fr.com/ibook/bricolage/repair_g3_video_en_article797.html
http://www.applefritter.com/node/10193

if you can get the littl square solution to work that would be really cool no?

-eric

Cool thanks, I will give it a try this weekend. Do you have any idea how stable it will end up being or of how permenant the fix is? Have you tried this yourself?

Thanks,
Paul

only applies to the g3 iBooks which had the gpu mounted on the underside of the logic board. On the G4 iBooks, the gpu is located on the topside of the logic board and secured under a heatsink. Short of logic board replacement, I do not know of any reliable fixes for this particular issue.

If I could find a way to apply pressure to the GPU is the logic board likely to work? By the way, in the meantime I am still looking to buy a logic board, I need this computer to be stable.

In order to apply pressure to the gpu on an iBook G4, well more than already is, you would need to place something between the heatsink and the gpu. Trouble is that this will creat issues with heat dissipation and possible damage to the chip while doing this. Also, to do this, you would need to remove the heatsink assembly (not a trivial procedure btw). In my personal and professional opinion, replacing the logic board is going to be your best bet.

With that having been said, check the frame for cracks. Any cracks in the frame compromise structural integrity, and contribute to flexing. If there are cracks replace the frame. Not doing so will result in having the replacement logic board go again.

...at the top of the WTB forum.

Please start a new thread outside of the buy/sell/wanted forums for harware questions.