If you think your Mac might have a hardware issue, you can use Apple Diagnostics to help determine which hardware component might be at fault. Apple Diagnostics also suggests solutions and helps you contact Apple Support for assistance.
When Apple updated the MacBook Air in 2018, it gave it a Retina Display and reduced the bezels around it, swapped the USB-A ports in favor of USB-C and Thunderbolt, added Touch ID, and made it a bit more compact. It also bestowed the infamous butterfly keyboard (RIP), much to many people's chagrin. Photograph: Apple Does the lack of a fan matter? For most people, no. The MacBook Air easily crushes its predecessor in performance. In a Geekbench 5 CPU benchmark test, the new MacBook Air's. Apple Apple MacBook Air MWTL2LL/A Early 2020 13.3' Laptop Computer - Gold 10th-Generation Intel Core i3 Processor 1.1GHz; 8GB LPDDR4x RAM; 256GB Solid State Drive; Intel Iris Plus Graphics Available for In-Store Pickup Only.
Prepare your Mac
- Shut down your Mac.
- Disconnect all external devices except keyboard, mouse, display, Ethernet connection (if applicable), and connection to AC power.
- Make sure that your Mac is on a hard, flat, stable surface with good ventilation.
Start Apple Diagnostics
Determine whether you're using a Mac with Apple silicon, then follow the appropriate steps:
Apple silicon
- Turn on your Mac and continue to press and hold the power button as your Mac starts up.
- Release when you see the startup options window, which includes a gear icon labeled Options.
- Press Command (⌘)-D on your keyboard.
Apple Hardware Test Download For Macbook Air 3 1 Year
Intel processor
- Turn on your Mac, then immediately press and hold the D key on your keyboard as your Mac starts up.
- Release when you see a progress bar or you're asked to choose a language.
View the test results
Apple Diagnostics shows a progress bar while it's checking your Mac:
When testing is complete, Apple Diagnostics shows the results, including one or more reference codes. Learn about Apple Diagnostics reference codes.
To repeat the test, click “Run the test again” or press Command-R.
To restart your Mac, click Restart or press R.
To shut down, click Shut Down or press S.
Apple Hardware Test For Macbook Pro
To get information about your service and support options, make sure that your Mac is connected to the internet, then click ”Get started” or press Command-G. Your Mac will restart to a webpage with more information. When you're done, choose Restart or Shut Down from the Apple menu.
Learn more
On an Intel-based Mac, if you can't start Apple Diagnostics with the D key, try these solutions:
- Press and hold Option-D at startup to use Apple Diagnostics over the internet.
- Make sure that your Mac isn't using a firmware password.