If your Mac Studio M5 Max/Ultra (2026) will not start, shows no picture, runs hot or has become slow, we can diagnose and repair it at our Bermondsey workshop. It is a workstation from 2026, identified by model numbers A3545, A3546. Storage and memory are both fixed to the board, which shapes what can be upgraded and how data is recovered.
- Model numbers
- A3545, A3546
- Model identifier
- Mac17,14, Mac17,15
- Released
- 2026
- Type
- Workstation
- Storage
- Soldered to the board
- Memory
- Unified memory, part of the chip
Repairs we carry out on the Mac Studio M5 Max/Ultra
Power supply repair
We test and replace failed power supplies. Many branded desktops use a manufacturer-specific unit, which we match to the exact chassis.
macOS reinstall and repair
We reinstall macOS, migrate data, and can revive or restore the firmware in DFU mode from a second Mac when an update has left the machine unresponsive.
Graphics repair
We diagnose and replace failed graphics cards, and check that the power supply and case can take the card you want before an upgrade.
Storage
Storage on the Mac Studio M5 Max/Ultra is soldered and cannot be upgraded. We can help with external storage, clearing space, or moving to a new machine.
Memory
Memory in the Mac Studio M5 Max/Ultra is part of the Apple silicon chip and cannot be changed after purchase.
Overheating and fan repair
We clear dust from heatsinks, fans and filters, replace failed fans and renew thermal compound. On liquid-cooled systems we test the pump.
We also carry out logic board repair, macOS reinstallation on the Mac Studio M5 Max/Ultra, along with no-picture and no-boot diagnosis, port repair, Wi-Fi and Bluetooth card replacement and data transfer to a new PC.
Known issues with the Mac Studio M5 Max/Ultra range
- The 2009 to 2012 tower is fully modular, with standard drive bays and memory slots, and is still worth upgrading for some workloads.
- Storage modules in the Mac Studio and 2019 Mac Pro are tied to the machine’s security chip and cannot simply be read in another computer.
Data recovery from the Mac Studio M5 Max/Ultra
The SSD in the Mac Studio M5 Max/Ultra is soldered and hardware-encrypted, so there is no drive to remove. If the Mac is dead, data recovery means repairing the logic board far enough to start it and copy the data off. If you have a Time Machine or iCloud backup, tell us, as that may be the quicker route.
Estimate the cost with our data recovery calculator, or read about recovering files after a ransomware attack.
Where the Mac Studio M5 Max/Ultra sits in the range
Its nearest relatives in the Mac Studio and Mac Pro range are the older Mac Studio M4 Max/M3 Ultra (2025). It is the most recent model of the range that we list.
Questions
Can the SSD or memory in the Mac Studio M5 Max/Ultra be upgraded?
The storage is soldered and cannot be upgraded. Memory is part of the chip and cannot be changed.
My Mac Studio M5 Max/Ultra will not turn on. Is my data lost?
Not necessarily, but the storage is on the main board, so the board has to be repaired far enough to read it. Do not keep trying to power it on, and tell us about any backups you have.
Where do I find the model number on my Mac?
The model number, an A followed by four digits, is printed in small text on the underside. Apple menu > About This Mac shows the year. For this model, look for A3545 or A3546.
How do I get my Mac Studio M5 Max/Ultra to you?
Bring it to our workshop at Unit 1 The Willows, 80 Willow Walk, London SE1 5SY, or call 020 7237 6805 to ask about courier collection. We confirm the price before any work starts.