Make sure your Mac is connected to a power outlet, then follow the steps below for your type of Mac. Apple Diagnostics can also suggest solutions and get you in touch with Apple Support for additional help.īefore you use Apple Diagnostics, make sure your Mac is shut down (choose Apple menu -> Shut Down from the menu bar) then disconnect all external devices except for the keyboard, mouse, display, and any Ethernet connection if you have one. If you think your Mac has a hardware problem, you can use Apple Diagnostics to help you determine which hardware component might be at fault. This article explains how to use it on Apple silicon Macs and Intel Macs.
Formerly known as Apple Hardware Test, Apple Diagnostics is a system-integrated feature on newer Macs running macOS Big Sur and macOS Monterey that can check your Mac for hardware issues.
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