This Mac definitely needs some more RAM! Practically no free memory AND High Page-out Count. Tip: Page outs occur when your Mac has to write information from RAM to the hard drive (because RAM is full). (This is the equivalent of your brain being too full so you have to write your thoughts down on paper to free up some head space) This DRAMATICALLY slows down your computer. If you have no free memory you should get more RAM.Ī Page out means your computer has run out of memory and had to use some of the Hard Disk instead of RAM. There are two important items to take note of ‘Free:’ and ‘Page outs:’įree tells you how much free memory you currently have available to use – the higher the better.
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On older versions of Mac OS the display looks more like this: Checking your memory on older versions of Mac OS If the memory pressure is yellow it may be worth monitoring over a few days to see if it goes into the red. If the memory pressure is green you have enough memory (like the screenshot above). Red means your performance is taking a hit because your computer needs to use the disk drive for memory. If there is any red in the memory pressure you need more RAM. Click on the ‘System Memory’ tab at the bottom of the window. This will display a little graph with the memory pressure.
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Here’s how to check if you have enough RAM. It’s not just a matter of saying ‘8 GB’ is enough because the amount of RAM you need will vary according to your Mac model and the programs you use. If you run out of free memory then your computer will be forced to use some of your hard disk as memory, which is VERY SLOW because hard drives are much slower to access than your computer’s RAM. When your computer is running a bit slowly, how can you tell if getting more memory will help?
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