simonhead666 (November 30, 1999 at 12:00 am)

HiIt's Pin 28 on the chip.. if you're looking at the chip, there is a little dot on it to show where pin 1 is.. it's on the other side of the dot.. if you scrape a bit of the green covering on the logic board with a small screwdriver, you can re-flow that one pin..no shim required

UberMan5000 (November 30, 1999 at 12:00 am)

The graphics chip loses contact with the logic board. This is one of the possible (and least destructive) repair methods. Other methods involve fire!

gyiik (November 30, 1999 at 12:00 am)

I'm a service man...but far away from you, so no money interrests in this. I just say what's right:With this repair the iBook'll work fine for a few time. BUT! After using for months the problem'll come again. The solder'll crash under pressure and ibook's mainboard can damage. In my service I resolder and the power cable change(the cable causes the problem, it's on the chip and if you press the iBook's bottom, the power cable makes pressure on the chip and the solder'll crash a bit)

theprokofiev (November 30, 1999 at 12:00 am)

Hi, Is it still working?

gedto (November 30, 1999 at 12:00 am)

I used those silicon/rubber feet they sell to stick under lamps and so and not scratch wood furniture, worked like a charm!it's a temporary fix though, eventually the case will bend and the shim will be rendered ineffective again.Still, it helps during some time, and your iBook will revive. if you don't move it too much it may last several months at least...

cheymar (November 30, 1999 at 12:00 am)

What did you use for shims?

gunnr2 (November 30, 1999 at 12:00 am)

hey,sorry but i was wondering if u could give me a tip on wat is wrong with my ibook g4.this is what happens.sometimes when i turn on the computer it works fine but then other times i hear the start up and the caps lock light works and all but the screen is not showing picture.and usually if i wait any where from a couple hours to a day or 2 it will turn on but says i have to reboot and when i do i have to wait another couple hours for it to be able to turn on.any tips?ty

gedto (November 30, 1999 at 12:00 am)

Hi all!Explanations will follow soon with sound, ok? :)Take care and good luck.FYI: My iBook has come back to life and is fine and working since that day, :P