For anybody not a secret that Macs have always been famous for trouble-free operation and high reliability. But any technology has a tendency to break down, and, at the most inopportune moment. If you have encountered problems during computer work, or simply want to test your Mac performance, it makes sense to use a built-in utility for diagnosis. What is it and what does it do? Let’s deal.

“Diagnostics Apple” or “Functional test Apple hardware” is, perhaps, the easiest way to learn about all obvious or hidden faults Mac. Brand utility is a complete diagnosis of the computer components, including cooling systems, wireless modules and various sensors and detectors.

To run the test on any Mac computer, regardless of make or operating system. Before the process of diagnosis you want to disable the firmware password, if used.

So, how to run a diagnostic on Mac?

For Macs released before June 2013, you must use preinstalled utility “function test Apple hardware”.

  • Before testing you must disable all unnecessary peripherals. You can leave the monitor, keyboard, mouse, and Ethernet cable.
  • To avoid problems, you should connect the Mac to a power source and place it on a flat surface.
  • Turn off the computer, and then turn on, hold down the D key on the keyboard until the screen does not appear proprietary tool for diagnosis.
  • In front of us, a window will appear, select the desired language. To produce a computer diagnosis, it is necessary to choose “Test” or press T. Before testing, you can set the checkbox for the option “Perform an advanced test.” In this case, will be performed a more detailed test, which takes longer.
  • Testing will take 2-3 minutes. After that, the screen will display the diagnostic results.

For Macs released after June 2013, you must use preinstalled utility “Apple Diagnostics”.

  • Before testing you must disable all unnecessary peripherals. You can leave the monitor, keyboard, mouse, and Ethernet cable.
  • To avoid problems, you should connect the Mac to a power source and place it on a flat surface.
  • Turn off the computer, and then turn on, hold down the D key on the keyboard until the screen does not appear proprietary tool for diagnosis.
  • After selecting the language, the test equipment starts automatically, and the screen will display a progress check.

  • Testing will take 2-3 minutes. After that, the screen will display the diagnostic results.

The full list of possible errors you can see on this page.

Advertisements