Last week, I bought a powerbook 5300cs that wouldn't power up, according to the owner, for $5 locally. Figured it just needed a new power jack. Turns out pressing the reset button would sometimes yield a green light only, a chime and then freezing, or just some noise from the speakers. I took the laptop apart and found no obvious signs of any damage, but when I looked closely at the processor, I noticed that one side of the processor's pins broke free from the logic board!
Anyway, I resoldered (by hand
) all of the 603e's pins, and got the machine up and running again. Since I figure the heat from the processor caused the solder to crack in the first place, I applied a little bit of thermal paste to the chip.
Hopefully this helps anyone that has a powerbook with similar issues