Model numbers: A3545, A3546
The September 2026 Mac Studio moved to M5 Max and M5 Ultra chips, in the same body as earlier models. With the Mac Pro discontinued, it is now Apple's most powerful desktop.
Which model do you have?
A3545 is the M5 Max model and A3546 is the M5 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
- Overheating in enclosed racks or cabinets
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
Call 020 7237 6805 or bring it to Unit 1, 80 Willow Walk, London SE1 5SY, open Monday to Saturday, 9am to 6pm. We check it over and quote before we start.