Model numbers: A3143, A3389
The March 2025 Mac Studio offered M4 Max or M3 Ultra chips with Thunderbolt 5, in the same body as earlier models.
Which model do you have?
A3143 is the M4 Max model and A3389 is the M3 Ultra model.
The model number is printed on the underside of the case. It starts with the letter A followed by four digits.
Common faults we fix
- Power supply faults
- Port faults
- Fan noise and dust build-up
- Logic board faults after surges
- Start-up problems after updates
Repairs we carry out
- Power supply replacement
- Port repair
- Fan clean and thermal service
- Logic board repair
- Data recovery
Your data
Storage on Apple silicon Macs is built into the logic board and encrypted, so data recovery depends on getting the original board running again. If your Mac is dead or has had a spill, switch it off and bring it in before trying to charge it. See our liquid damage recovery service.
Bring it in
Walk in to Unit 1, 80 Willow Walk, London SE1 5SY (Monday to Saturday, 9am to 6pm), or call 020 7237 6805 to talk it through first. You get a quote before any work starts.