Hello community, I have a beautiful G4 PowerBook, 1.5Ghz with a bad motherboard. I am hoping to replace the mobo with a 1.67Ghz that I am sure works, from a VERY similar model. Would this be possible, or am I out of luck? Bad motherboard- 1.5 Ghz Model: PowerBook 5,6 A1106 Good motherboard- 1.67 Mhz Model: PowerBook 5,6 A1106 Follow up question- I know it is possible to test the power trickle in the motherboards of G3's to determine whether or not they are working. Is there a similar test to run on these motherboards? Thanks.