Apple includes a built-in diagnostic suite that checks RAM along with other hardware components. For Apple Silicon (M1, M2, M3): Shut down your Mac.
: If you have two sticks of RAM, run the test with only one stick installed at a time. This helps you identify exactly which stick is broken so you don't have to replace both. how to run memory diagnostics
: If the bottom half of the screen stays green, your RAM is likely fine. If you see bright red bars , your memory has failed and needs to be replaced. Method 3: Running Diagnostics on macOS Apple includes a built-in diagnostic suite that checks
Your PC will restart into a blue environment. By default, it runs a "Standard" test. it runs a "Standard" test.