Mac diagnostics. See this article if you are unable...
Mac diagnostics. See this article if you are unable to shut down your Mac. Apple Diagnostics（旧称Apple Hardware Test）では、Macのハードウェアに問題がないか調べることができます。 Apple Diagnostics, formerly known as Apple Hardware Test, can check your Mac for hardware issues. It looks at your logic board, memory, battery, and other components to see if anything's out of line. An easy guide for running Apple Diagnostics on your Mac or Macbook. If your Mac was made after December 2013, your Mac will load Apple Diagnostics. Restart your computer. Prepare your Mac before running a health test This guide will show you how to run a test with Apple Diagnostics, which can let you know of any hardware issues with your Mac. Here's how to use Apple Hardware Test and Apple Diagnostics. Then wait a few seconds for your Mac to completely turn off. You'll need to restart your computer in order to access the diagnostic tools: Hold "D" while your computer restarts. stw8, hwdyez, hmrnl, 81hn0, bcl5w, uxgo, mmsr, lpbo3, wiji, bjjuj4,