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Adding RAM

Adding RAM (Random Access Memory boards) will often make your Mac run faster.

You can see how much free memory your Mac currently has using the standard Apple utility program Activity Monitor.

Mactracker can tell you what sort of RAM your Mac uses. The vendor websites suggested below are also helpful for this.

Where to buy RAM

Apple sells RAM, but it is never the cheapest.
This article will not attempt to list the many specialist suppliers around the world.
Crucial.com and OtherWorldComputing.com are just two of several large American suppliers that will ship internationally. They have consistently good recommendations from many contributors on the Mac-Ministry email list.
You may find the RAM you need even cheaper on eBay, either from large corporate sellers, or from individuals. Remember there will be no warranty from the latter. Always check sellers' feedback before bidding.

Guidance on opening up various Macintosh computers can be found at ...

Take care to avoid static electricity. ...