Run apple diagnostics12/6/2023 There is nothing newer than ASD 3S162 so don’t bother looking for it. I can’t tell you where to get them but some creative Startpaging might help □ If you want to know which version of ASD you need for any particular system, have a look here. Keep in mind Diagnostics/AHT is a quick test, there are far more comprehensive hardware tests out there called Apple System Diagnostics (ASD). Quickly test pretty much any Mac for obvious hardware issues. A repository of these images is kept on Github here: If for some reason booting your Mac with “d” held down doesn’t work, you can also download the AHT disc images and burn them to a CD/DVD or restore them to a flash drive. (Pre-2013 Macs running OS X older than Lion) Booting up with the “d” key held down may not do anything unless you have the disc that came with your Mac labeled “Applications Install Disc 2.”, or in the case of MacBook Air, the OS install flash drive. This will ensure your RAM is thoroughly tested but can take a very long time to complete. AHT offers more control over the testing so if you can, make sure you check the ‘perform extended testing’ box. (Pre-2013 Macs running OS X Lion or newer) A hardware test icon will show up on your screen during boot and shortly after you’ll be asked to select a language. You’ll be asked to join a Wi-Fi network or the test will load after a minute or so if your Mac is connected via ethernet. (2013 Mac or newer) If a globe icon shows instead of a language selection screen, no recovery partition or Diagnostics were found and it will have to access the online version. Once you make your selection the test will begin and after about two minutes you’ll get the all clear or an error message. (2013 Mac or newer) If Diagnostics is present (part of your recovery partition), you will be asked to select a language. Simply power on your Mac and immediately hold down the “d” key. There is a very easy test you can do to get a general idea of the overall health of a Mac.įor Macs from 2013 – current, it’s called Apple Diagnosticsįor Macs older than 2013, it’s called Apple Hardware Test (AHT)įor simplicity, I will refer to both as Diagnostics from here on.Īccessing the Diagnostics is easy but varies depending on the age of your Mac and if it holds a recovery partition. You hand over the cash, take your new Mac home and find it’s not in as good of a state as you thought it was. A quick power on test to see if it even fires up, a quick glance at the About This Mac and System Report. You’re about to meet a buyer that has the Mac you want.
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