TL;DR
To use Apple Diagnostics to test your Mac:
- On Apple Silicon Mac: Hold the power button at startup, then press Command ⌘ + D to run Apple Diagnostics.
- On Intel-Based Mac: Hold the D key at startup to initiate Apple Diagnostics, then follow on-screen instructions.
Tried and Tested ✅: The methods and steps mentioned in this article have been tried and tested firsthand by Ojash Yadav on his MacBook Pro M3 and rechecked for errors on Hashir’s MacBook Air M2.
If your Mac is having problems that a reboot doesn’t fix, Apple Diagnostics can help you identify hardware issues. In this guide, I’ll show you how to easily run Apple Diagnostics on any Mac, whether it’s Apple Silicon or Intel-based, so you can quickly find out what’s wrong.