This page sets out the repairs, upgrades and data recovery we carry out on the Mac Studio M4 Max/M3 Ultra (2025), with notes on what tends to go wrong and what can and cannot be upgraded. It is a workstation from 2025, identified by model number A3143. Storage and memory are both fixed to the board, which shapes what can be upgraded and how data is recovered.
- Model number
- A3143
- Model identifier
- Mac16,9, Mac15,14
- Released
- 2025
- Type
- Workstation
- Storage
- Soldered to the board
- Memory
- Unified memory, part of the chip
What we repair on the Mac Studio M4 Max/M3 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.
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.
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 M4 Max/M3 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 M4 Max/M3 Ultra is part of the Apple silicon chip and cannot be changed after purchase.
We also carry out logic board repair, macOS reinstallation on the Mac Studio M4 Max/M3 Ultra, along with no-picture and no-boot diagnosis, port repair, Wi-Fi and Bluetooth card replacement and data transfer to a new PC.
What we see on the bench
- 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 M4 Max/M3 Ultra
The SSD in the Mac Studio M4 Max/M3 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 M4 Max/M3 Ultra sits in the range
Its nearest relatives in the Mac Studio and Mac Pro range are the older Mac Studio M2 Max/Ultra (2023) and the newer Mac Studio M5 Max/Ultra (2026).
Questions
Can the SSD or memory in the Mac Studio M4 Max/M3 Ultra be upgraded?
The storage is soldered and cannot be upgraded. Memory is part of the chip and cannot be changed.
My Mac Studio M4 Max/M3 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.
How do I get my Mac Studio M4 Max/M3 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.
Can you upgrade the graphics card in a Mac Studio M4 Max/M3 Ultra?
In most cases, yes. We first check the power supply, the physical space and any manufacturer-specific connectors, then fit and test the card.