Chosen Solution

Hi, i have just bought a a1138 powerbook g4, i was testing installed apps then, system got frozen, i pushed power on button and hold until it shut down, now it don’t startup. Powers on but: No chimesSleep led is onSuperdrive spins in cyclesBattery chargesIf I push the shift key its LED lights on and then offSeems that no reaction to any key booting options like secure mode or reset nvram …If i remove RAM , it starts and sleep LED blinksI tried removing the RAM tooIf i hold power on button, all fans run and then same behavior. Thanks all for reading

I hope you didn’t pay too much here, This system is quite old and won’t run any of the current versions of OS or app’s. As to fixing it sounds like your logic board needs replacing. This system had a known issue with the chip set that it used which is likely your problem here. Sadly, finding a good logic board will be difficult. It maybe best to return it and get your money back so you can buy a newer used system. Sorry ;-{