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MacOSX - How to run a hardware test?


MacOSX integrates Apple Hardware Test (Apple Diagnostics) feature, allowing you to check for the most common hardware related issues. To use this tool:

  • First disconnect all the external devices and peripherals
  • Restart your Macbook while pressing the D key
  • Upon restart the Apple Hardware Test /Apple Diagnostics tool shall open.
  • Follow the given instructions.
  • Any error detected during the test phase will generate an error code, from there you can Google it, to find the appropriate solution.
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