
PowerBook G4 logic boards fail with age: power components wear out, solder joints crack and some later 15-inch models lose one of their memory slots. Replacement boards are now rare, so repair is often the only option.
Faults we repair
- No power, or power that cuts out
- Video faults and a dark or garbled screen
- Lower memory slot not recognised (some 15-inch models)
- DC-in and charging faults
- Corrosion after spills
How we approach it
We start by checking the power supply path from the DC-in board, then look for failed components with a microscope and multimeter. Where a chip or connector has failed, we replace just that part. Before any work, we’ll tell you whether your data is safe, because on the PowerBook G4 the hard drive is separate from the board and can always be copied first.
More for the PowerBook G4
Price
From £165 + VAT for non-complex board repairs. Complex repairs (liquid, lightning or GPU faults) from £285 + VAT. The initial assessment and advice are free, as long as we don't need to open your Mac. If a technician needs to open it and spend time diagnosing the fault, or you need a report for an insurance claim, it is booked in as a diagnostic at £45 + VAT (£54). All prices are subject to inspection, and nothing is done without your approval.
Questions we’re often asked
Can you find a replacement board if mine can’t be fixed?
Sometimes, from donor machines. We’ll tell you what’s available and whether it’s worth it.

