iBook G3 M6497 no power from USB ports, burnt IC on the motherboard

Be careful how much you spend on the donor board or parts - the snow iBooks are beyond common and go for pennies to the dollar. You can usually get a good one for about as much as a major part like a tested motherboard. If it isn’t cheap to fix, find another one - they aren’t expensive and even minor parts that are common can total out a snow iBook G3.

Anyway, it’s not going to be easy to find a schematic for this since it’s older and not something most people will try and repair. Your best bet is to find a good example and use this for parts, or find a bad GPU motherboard with good components by the USB port, and repair the board you have.

The chip is too burned to get the number off of it without a schematic, so a board or schematic is a required reference on this one.