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How to run an Apple Diagnostics test on an Apple Macintosh computer – macOS troubleshooting

Apple - macOS - macOS troubleshooting

In this troubleshooting tip we show you how you can access Apple Diagnostics. This is a diagnostic test built into your Apple Macintosh computer to check the internal components of the device.

Apple Diagnostics is a first step when trying to diagnose an issue with your computer.