What Macs can you up­grade?

Mac Format - - IMPROVE YOUR MAC -

he G3 and G4 iMacs are a pain to get into (the G4s es­pe­cially, since you need to reap­ply ther­mal paste), but the G5 range and the early In­tel mod­els are much eas­ier. If all you want to do is up­grade the RAM, in most iMac mod­els you can re­move a plate at the bot­tom, pop out the RAM it came with then firmly push in your new chips.

Re­plac­ing any­thing else, no­tably the hard disk, can be more in­volved, but for those G5 and early In­tel iMacs, it’s just a ques­tion of first de­tach­ing the screen or back panel. The glass pan­els of the

Ta­lu­minium iMacs up to and in­clud­ing the 2011 mod­els are just held on by mag­nets, so you can at­tach suc­tion cups then gen­tly pull them away. Sadly, from the 2012 mod­els, Ap­ple started stick­ing its glass to the alu­minium backs with ad­he­sive. Not only is this trick­ier to open, but you need to ap­ply fresh ad­he­sive strips each time you open it and then want to close it up. Ir­ri­tat­ingly, you’ll need to go to th­ese lengths even to re­place the RAM in post-2011 20.5-inch mod­els.

For iMacs that have op­ti­cal drives, con­sider re­plac­ing it with a sec­ond hard disk or SSD.

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