Frequently Asked Questions

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142. Should I upgrade to the latest version of macOS?

See also: How do I find the serial number on macOS?
See also: How much memory does my Mac have? Can I get more? How much do I need?

Find out what version of macOS / macOS your computer is able to run by entering your serialnumber on the Ultimate Mac Lookup, go to the webpage for your model and look at Maximum MacOS.

They also have a list of all mac models and the latest OS they can run.

In general you should upgrade your Mac to a new version of Mac OS X. We also recommend replacing a HDD (slow rotating Hard Disk Drive) with a SSD (faster Solid State Drive) when doing major upgrades if it is possible.

CPU model

To find the CPU model run this command in the terminal:

sysctl -n machdep.cpu.brand_string

Known problems

But other than that, go ahead. Most things work better. If you have any questions contact


This entry mac.macos was last modified 2018-01-31


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