If you have a firmware password enabled, turn it off before proceeding.It tests numerous internal subsystems in your Mac, including the CPU, memory, and firmware displays and graphics adapters connectivity via USB, Bluetooth, Wi-Fi, and Thunderbolt batteries and power adapters on laptops and more.īefore you run Apple Diagnostics, prepare your Mac with these steps:
(On Mac models released before June 2013, Apple instead included a similar set of diagnostics called Apple Hardware Test.)Īpple Diagnostics is a set of hardware test routines that Apple bakes into every Mac.
If your Mac is acting up and you suspect a hardware problem, there’s an easy first step that you can-and should-try before calling for tech support: Apple Diagnostics.
