Signs your Apple PowerBook G4 15" M9421 needs this repair
- Won't turn on: no lights, no sound
- Powers on but shows no display
- Shuts down or restarts without warning
- USB ports, sound or Wi-Fi stopped working
- Faults after a spill or power surge
- Overheats and switches off under load
How we fix your Apple PowerBook G4 15" M9421
We trace the fault on the board to the part that has failed, such as a power chip, capacitor or controller. Repairing that part is usually far cheaper than a new board.
Where a board can't be repaired economically, we source a replacement motherboard for your Apple PowerBook G4 15" M9421 and refit your drive, so you get your laptop back with your files and settings in place.
How long it takes
Board diagnosis usually takes one working day. We give you a price and a timescale before starting.
Good to know: Use your laptop on a hard, flat surface, not on a bed or sofa. Soft surfaces trap heat, and overheating is a common cause of board failure.
Entry 1.33 GHz model of the April 2004 15-inch PowerBook G4, with a Combo drive and Radeon 9700 graphics. More about the Apple PowerBook G4 15" M9421
Common questions
Is it cheaper to repair or replace the motherboard?
Repairing is usually cheaper. We only suggest a replacement board when a repair wouldn't be reliable or economical.
Will my files survive a motherboard fault?
Usually, yes. Your files are on the storage drive, not on the board, and we check the drive separately.