The RAM in your Mac is in essence the active workspace of your computer, in which your programs run and your content is created. Because of this, healthy RAM is vital for properly running any software on your Mac, be it the system software that comes with OS X or third-party programs.
Unfortunately, if the RAM in your Mac is faulty, those faults can sometimes persist undetected for a while, only to crop up unexpectedly and result in a crash, hang, or other unwanted behavior. Therefore, it is good to not only be able to identify faulty RAM, but also be able to properly test for it and then be prepared to fix the problem, if it arises.
Faulty RAM symptoms
If your system’s RAM is not working correctly, then you will likely see one of several symptoms when using your Mac:
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